52 results about "Hydraulic simulation" patented technology

The invention relates to the technical field of electric power engineering, in particular to a simulation method of a power station motor high-oil-pressure jacking hydraulic system, which comprises the following steps: building a high-oil-pressure jacking hydraulic simulation system which comprises a control module, a constant-pressure variable pump, a pressure release valve, a measuring element, an oil tank, an equivalent load, an equivalent hydraulic cylinder and a pressure release hole; the equivalent hydraulic cylinder is used for jacking up the equivalent load and simulating a real scene that the motor is jacked up by high-pressure oil; theoretical modeling is conducted on a frame and all parts of the high-oil-pressure jacking hydraulic simulation system; by establishing a linkage mechanism of the equivalent area, the pressure and the flow of the pressure relief hole, pressure fluctuation and compensation response during working condition conversion are accurately simulated; smooth transition between the static jacking state and the operation pressure maintaining state is achieved, and the stability and the self-adaptive capacity of the system under the variable rotating speed condition are effectively verified. Compared with traditional static simulation, the whole process of the hydraulic and mechanical coupling effect in actual operation is reflected more comprehensively.

The invention belongs to the technical field of fishway engineering and hydraulic simulation and calculation, and relates to a method and system for calculating hydraulic parameters of a vertical seam type fishway influenced by downstream water level change, and the method comprises the steps: S1, obtaining fishway design parameters and initial hydraulic parameters; s2, when the downstream water level changes, calculating the changed flow velocity of the first vertical seam, the changed water level of the inlet, the changed water level of the first pool chamber and the changed water depth of the first pool chamber, and taking the first pool chamber as the current pool chamber; s3, calculating the changed flow velocity of the next adjacent vertical seam and the changed water level and water depth of the next adjacent pool chamber based on the changed water level and water depth of the current pool chamber; and S4, taking the next adjacent pool chamber in the S3 as the current pool chamber, returning to the S3, continuously calculating the changed flow velocity of the next adjacent vertical seam and the changed water level and water depth of the next adjacent pool chamber until the calculation is stopped, and determining the influenced vertical seam and pool chamber and the corresponding changed hydraulic parameters. According to the method, the number of the vertical seams, the pool chambers and the hydraulic parameter change condition influenced by the downstream water level change can be determined.

The application discloses an airplane hydraulic servo actuating system simulation method based on digital twinning, and the method comprises the following steps: (1) constructing a digital twinning hydraulic simulation model and a digital twinning three-dimensional visual model of an airplane hydraulic servo actuating system physical system; (2) storing simulation model output data of a monitoring point of the digital twinning hydraulic simulation model and sensor acquisition data of the airplane hydraulic servo actuating physical system in real time and synchronously to form twinning data; (3) comparing and analyzing the simulation model output data and the sensor acquisition data, iteratively optimizing the digital twinning hydraulic simulation model through a model optimization module, and simultaneously performing three-dimensional visual demonstration on the working condition of the airplane hydraulic servo actuating virtual model. The application can provide a simulation modeling and optimization method for airplane hydraulic servo actuating system design, and provide a reference for research and verification of virtual-real mapping technology of the airplane hydraulic servo actuating system based on digital twinning.

The invention discloses an urban drainage pipe network intelligent regulation and control method and system based on digital twinning, and relates to the technical field of urban drainage pipe network regulation and control, and the method comprises the steps: constructing an online calibration digital twinning body based on a hydrodynamic principle and a data assimilation algorithm according to basic physical information and real-time past monitoring data, and carrying out the online calibration of the digital twinning body; then hydraulic simulation is carried out according to real-time past monitoring data and past weather forecast data, and a risk early warning model is constructed; acquiring current real-time monitoring data and current weather forecast data, and inputting the current real-time monitoring data and the current weather forecast data into the risk early warning model to obtain risk early warning information; determining the abnormal state type of the current urban drainage network according to the real-time past monitoring data and the online calibration digital twin; and performing intelligent regulation and control on the urban drainage pipe network according to the abnormal state type and the risk early warning information. According to the invention, abnormal diagnosis of the urban drainage pipe network, predictive early warning of waterlogging risk and global optimization regulation and control of the urban drainage pipe network are realized, and intelligent management of the drainage pipe network is embodied.

The invention relates to the technical field of water supply pipe networks, in particular to a water supply pipe network dynamic hydraulic simulation and leakage prediction method based on digital twinning, which comprises the following steps: S1, collecting multi-source heterogeneous data of a water supply pipe network in real time; s2, obtaining multi-source heterogeneous data of the time-space registration water supply pipe network; s3, establishing a pipe network multi-physics field coupling digital twinborn body; and S4, obtaining a micro-leakage sound wave signal. S5, obtaining a graph structure which can be processed by a computer; s6, establishing a leakage positioning model, and inputting the graph structure, the micro-leakage sound wave signal and the time-space registration water supply network multi-source heterogeneous data into the leakage positioning model to obtain leakage point positioning data; s7, establishing a fracture prediction model, and outputting a prevention decision; step S8, carrying out life prediction to obtain the life of the pipe network leakage node; step S9, optimizing the prevention decision; and step S10, updating the weighted target planning model. Precision and intelligence of water supply pipe network management are realized.

The invention discloses a processing method and device for automatically processing a multi-layer BIM model based on an AI model. The processing method comprises the steps of performing semantic classification on component materials in a BIM model based on an AI model to obtain semantic material information; processing the OSGB data to determine a DEM data set; static visual data of the BIM model are determined; determining hydraulic simulation data and / or pedestrian evacuation simulation data; fusing the determined hydraulic simulation data and / or the determined pedestrian evacuation simulation data with the determined DEM data set, and calling a hydraulic simulation model and / or a pedestrian evacuation simulation model to determine a hydraulic simulation result and / or a pedestrian evacuation simulation result; and calling a visualization engine to construct a visualization three-dimensional scene of the BIM model based on the determined static visualization data, the determined hydraulic simulation result and / or the determined pedestrian evacuation simulation result. Therefore, the automation degree of comprehensive simulation and visualization of the multi-story building is improved.

The present application relates to the field of liquid fuel pipeline simulation, and discloses a kind of multi-variety liquid pipeline sequential transport hydraulic simulation method and system based on dynamic interpolation method, can be in the multiple division pipe sections of multi-variety liquid fuel pipeline sequential transport simulation model, select the two adjacent pipe sections for transporting different varieties of liquid fuel. According to the maximum fuel wave speed in the model, each adjacent pipe section is respectively grid divided, and at least one grid node in each adjacent pipe section is determined. The relative position relationship between the oil mixing interface and the grid node in the two adjacent pipe sections is monitored. According to the relative position relationship, the fuel wave speed of the grid node, the maximum fuel wave speed and the dynamic interpolation method, the flow and pressure head of at least one grid node are determined. The present application can accurately depict the multi-variety liquid fuel pipeline sequential transport process, realize the accurate simulation of sequential transport scene, and effectively enrich the multi-variety liquid pipeline sequential transport hydraulic simulation method.

The application discloses a kind of thermotechnical hydraulic model topological structure generation method, equipment and medium, belong to thermotechnical hydraulic simulation software field, including steps: S1, identification model connector;S2, read model parameter, read and save the model parameters of upstream and downstream nodes on connection line, the upstream and downstream nodes on connection line include pipe and connector;S3, generate graph data structure, generate graph data structure vertex and edge and error for connection error;S4, generate topological structure, traverse vertex and number pipe and connector, and connect upstream and downstream;S5, supplement topological structure information, and give the initial parameters of pipe and connector to the corresponding node in topological structure.This application not only can identify visual pipe modeling connection relationship and quickly and automatically establish topological information structure, but also facilitate program maintenance and subsequent algorithm developer application.

The invention relates to the technical field of water affair informatization, in particular to a pipe network hydraulic acquisition method based on water hammer calculation and raw water scheduling, which comprises the following steps: acquiring operation parameter data of each water source node of a raw water transmission and distribution system, and setting initial conditions and boundary conditions of hydraulic simulation based on the parameter data; establishing a transient control equation based on the topological model, the initial condition and the boundary condition, and performing discretization and numerical solution on the transient control equation to obtain an initial transient hydraulic distribution result of each node under each time step; based on the initial transient hydraulic distribution result, iteratively applying a multi-water-source combined water supply balance constraint, a pump station energy consumption constraint and a valve flow constraint, correcting the pressure and flow of each node until each constraint condition in the whole scheduling period is met, and obtaining a transient hydraulic distribution result after constraint correction; and on the basis of the transient hydraulic distribution result after constraint correction, error analysis is carried out on the pressure and flow of each node, iterative correction is carried out, and a corrected steady-state hydraulic result is obtained.

The invention relates to an intelligent diversion tunnel design method based on multi-module collaborative optimization, which solves the problem of a linear serial mode of a traditional diversion tunnel design process, breaks through the limitation of artificial experience and finds a global or approximately global structural economic optimal solution. Establishing a model basis library, inputting engineering boundary conditions, and standardizing data; the intelligent hydraulic calculation and section optimization module is used for performing hydraulic simulation calculation to generate a plurality of section design schemes; the preliminary support design module is used for matching an initial support design scheme with known sections and geological conditions; the structural calculation module is used for calculating, checking and optimizing mechanical safety and economical efficiency by integrating the design schemes of the section and the preliminary support; the economic comparison module quantifies the economic cost of each design scheme and provides a target function value; and through an intelligent closed-loop mode, closed-loop processing is carried out on the calculation module by adopting modes of design, verification, feedback, optimization and result output in sequence.

The invention discloses a PDC drill bit intelligent design system and method based on Un-ity, and the system comprises a data input module which is used for receiving a drill bit design parameter set and a drilling working condition stratum data set; the hydraulic simulation optimization module is used for carrying out simulation analysis on a drill bit bottom hole flow field and chip migration on the basis of the design parameters and the drilling fluid parameters; the core algorithm module is used for carrying out quantitative evaluation on the drill bit design scheme and calculating four core performance indexes including aggressiveness, stability, deflecting capacity and matching performance; and the front end interaction and visualization module is used for generating a parameterized PDC drill bit three-dimensional model. According to the method, drill bit design parameters and stratum working condition data are deeply fused, the problems that traditional design and actual working conditions are disjointed, hydraulic performance evaluation depends on experience estimation, evaluation standards are subjective, iteration efficiency is low and the like are solved, rapid, quantitative and intelligent evaluation and optimization of a design scheme are achieved, and the method is suitable for large-scale popularization and application. And the scientificity, accuracy and efficiency of drill bit design are obviously improved.

This invention discloses a method and system for water hammer protection and control in large-scale drip irrigation networks based on pressure feedback, relating to the field of drip irrigation water hammer prevention and control technology. The method includes: constructing the drip irrigation network topology using GIS digital modeling technology and marking the locations of water hammer protection devices; collecting network water condition data through sensor arrays, and constructing a network water condition dataset after preprocessing; calculating the water hammer risk coefficient of each network segment using a covariance matrix discriminant model based on the network topology and water condition dataset, selecting a set of risky network segments, solving the pre-control action parameters of the adjustable water hammer protection device using a particle swarm optimization algorithm, and issuing the device for execution after verification through steady-state and transient joint hydraulic simulations, thereby predicting and preventing water hammer occurrence and ensuring steady-state network pressure. This invention achieves accurate identification and efficient control of water hammer risk in large-scale drip irrigation networks, reduces water hammer protection energy consumption, and ensures stable operation of large-scale drip irrigation networks.

The application discloses a ship lock water delivery intelligent collaborative control method based on a hydraulic simulation and relates to the technical field of ship lock hydrodynamics. The application collects hydraulic data such as speed, acceleration and blockage ratio in the ship water delivery process, constructs discrete hydraulic states and calculates attribution coefficients; in combination with historical transfer frequency and physical conservation law verification, a state transfer matrix reflecting state evolution law is established; the future hydraulic state probability distribution is deduced by using a Markov chain model, and then a mooring force threat coefficient is calculated to quantify the risk. The method dynamically adjusts the valve opening degree based on the prediction result, realizes intelligent collaborative control with prediction ability, changes passive response into active prevention, and improves the operation safety and efficiency of the ship lock.

The invention provides an operation management method and system for a hydraulic simulation model in a heat supply pipe network, and belongs to the technical field of operation management. When it is determined that the heat supply pipe network does not need to adopt a preset strategy to carry out operation management on the hydraulic simulation model, the operation risk position in the operation data interval is determined based on the deviation condition of the operation risk position in the operation data interval and the operation risk positions in other operation data intervals; and the operation management method of the hydraulic simulation model is determined in combination with the matching condition of the different operation risk positions and the monitoring data of the associated heat users, so that the reliability of operation management processing of the hydraulic simulation model used in the heat supply network is improved.

The application relates to the field of simulation control technology and discloses a ship lock electrical hydraulic simulation combined control method and system, which comprises the following steps: acquiring the communication round trip time of key instruction interaction between an electrical control simulation platform and a hydraulic simulation platform; maintaining a recent data set containing the communication round trip time of the latest preset number of times, the recent data set being updated by using a first-in-first-out mechanism, and calculating a communication timeout judgment limit according to the statistical characteristics of the recent data set; if the actual response time of the key instruction interaction is not within the communication timeout judgment limit, communication compensation is carried out, otherwise the simulation is continuously carried out normally; by monitoring the communication round trip time in real time and dynamically adjusting the communication timeout judgment limit, the complex network environment can be dynamically adapted, the misjudgment and unnecessary compensation caused by the fixed timeout setting value under network jitter are effectively avoided, the continuity and data accuracy of the simulation process are ensured, and the problem that the simulation result deviates due to communication fluctuation in the prior art is solved.

The invention discloses a sewage pipe network external water inflow positioning method and system based on data driving, and belongs to the field of urban sewage pipe network diagnosis and detection.The method comprises the steps that basic data of a sewage pipe network are collected to establish a hydrodynamic model; a monitoring point is selected at the most downstream of the target area, and an upstream pipe network is divided into K independent branches; randomly selecting node adding flow in a branch, executing hydraulic simulation, and generating a data set comprising a monitoring point inflow working condition liquid level time sequence, a full-node normal working condition liquid level time sequence, a node maximum liquid level difference and an inflow label; a two-stage inflow positioning framework is constructed, in the first stage, the node liquid level space-time matrix is input into the LSTM-GCN regression model to output the maximum node liquid level difference, and in the second stage, the vector is input into the GCN classification model to generate the inflow probability of each branch. By adopting the method and the system, the accurate positioning of the inflow source under single-point monitoring is realized, and the equipment dependence and the operation and maintenance cost are remarkably reduced.

The invention discloses a hydraulic simulation data construction method and device. The construction method comprises the following steps: for each visible component in a BIM model, determining a hydraulics role corresponding to the visible component; determining a first surface dictionary, a connection element dictionary and a connection surface list based on a determination result of the hydraulic role; based on the connecting element dictionary, processing bottom surface data and top surface data of a visible component of which the corresponding hydraulics role is a connecting element, and determining a receiving area set and a centroid point set; determining a supporting DEM dictionary and a blocking DEM dictionary based on the first surface dictionary, and determining a final supporting DEM dictionary based on the determined supporting DEM dictionary and the determined blocking DEM dictionary; and determining a connection DEM dictionary based on the first surface dictionary and the connection surface list. Therefore, the conversion efficiency from the BIM model to hydraulic simulation is improved.

The present application relates to the technical field of medical water treatment, in particular to a customized hemodialysis water supply pipe network system based on digital twinning and 3D printing, which comprises a sensor data acquisition module, a digital twinning hydraulic simulation module, a structure collaborative optimization module, a pipe manufacturing instruction generation module and a 3D printing pipe forming module. In the present application, by constructing a hydraulic and water flow mapping relationship synchronized with the actual running state, the pipe geometry parameters and flow distribution are dynamically deduced based on the bed terminal water characteristics, so that the branches maintain a coordinated water supply state under different load conditions, and the optimized structure parameters are directly converted into executable manufacturing paths, realizing the directional forming of pipe size and internal structure, avoiding the accumulation of artificial processing errors, supporting differentiated branch configuration, reducing the influence of later adjustment on the overall pipe network, and improving water supply consistency, structure adaptability and operation controllability.

The application discloses a kind of based on hydraulic simulation roughness optimization method and system of heating pipe network, it is related to heating system pipe network roughness optimization technique field, heating pipe network is divided into W region, constructs hydraulic simulation model, obtains heating data, heating data includes initial cold period data, severe cold period data and last cold period data, heating data is arranged as the input parameter set of hydraulic simulation model, the optimized roughness of output heating pipe network, according to the roughness of the population of heating pipe network and preset population number, constructs, the fitness value of different individual in population is calculated, obtains the population after optimization, respectively obtains the optimal roughness of initial cold period, severe cold period and last cold period of preset region, initial cold period, severe cold period and last cold period are calculated according to preset proportion, obtain the optimal roughness of preset region, obtain the optimal roughness of W region, adjust stem flow distribution and actual working condition consistent, optimize and verify the roughness of overall heating pipe network.

This application provides a BIM-based method and system for the full lifecycle detection and optimization of road pipeline networks. The method includes: monitoring the target road pipeline network, collecting hydraulic parameters of each preset pipe segment, processing to obtain the hydraulic state coefficient of the pipe segment, and determining whether the hydraulic state meets the preset state requirements. If not, multiple optimization schemes are matched, and hydraulic simulation tests are performed. The optimal scheme is selected based on the test results. The method also includes monitoring the operation of each preset pipe segment, collecting design characteristic parameters, construction characteristic parameters, and operational characteristic parameters within a preset time period, processing to obtain the aging index coefficients corresponding to each preset pipe segment, and adapting the corresponding renovation priorities and renovation schemes. Furthermore, the method involves obtaining the spatial measured parameters and benchmark spatial parameters of the target road pipeline network, processing to obtain the corresponding parameter deviation value groups, determining the deviation level based on the parameter deviation value groups, and taking corresponding adjustment measures. This achieves BIM-based technology for the full lifecycle detection and optimization of road pipeline networks.

The invention belongs to the technical field of thermal hydraulic simulation software, and particularly relates to a steam turbine modeling method and equipment based on Modelica. According to the method, the thermal-hydraulic process of the steam turbine is efficiently and accurately expressed under the two-fluid six-equation system framework, and coupling simulation of the thermal-hydraulic specialty and the mechanical specialty of the steam turbine is realized, so that the problem of how to ensure that the thermal-hydraulic process of the steam turbine is efficiently and accurately expressed under the two-fluid six-equation system framework is solved; and meanwhile, multi-specialty coupling calculation with a mechanical specialty is realized.

The invention relates to the technical field of nuclear power plant steam generator thermal hydraulic analysis, in particular to a nuclear power plant steam generator tube bundle area thermal hydraulic simulation system, method and equipment. The system comprises a pre-processing module, an immersion boundary solving module and a flow thermal coupling module which are in communication connection, the pre-processing module is used for determining a geometric model and a computational domain of a heat transfer tube and a supporting structure of the steam generator; the immersion boundary solving module is used for solving a fluid control equation based on the geometric field and the non-structural background grid, and realizing preset boundary conditions by introducing virtual force source items at the boundary of the heat transfer tube and the supporting structure to obtain flow field distribution; and the flow thermal coupling module is used for receiving the flow field distribution and simulating the heat exchange process between the wall surface of the heat transfer pipe and the secondary side fluid. The technical problems that in an existing steam generator tube bundle area flow field simulation technology, microcosmic flow field analysis is insufficient, supporting structure resistance characterization is distorted, and calculation efficiency and precision are difficult to consider at the same time are solved.

The invention provides a regional long-period flood risk calculation method and system, and relates to the technical field of flood disaster risk assessment. The method comprises the following steps: carrying out rainfall event division based on rainfall data of a rainfall station in a research area; performing flood consequence simulation on the research area by applying a hydrological hydraulic simulation model and a rainfall event to obtain flood consequence parameters of the research area; sequencing the rainfall events from large to small according to the severity of the flood consequence parameters, and compiling rainfall event sample serial numbers based on a sequencing result; calculating an experience frequency corresponding to the rainfall event according to an experience frequency formula; and calculating the rainfall event flood risk in the long period of the research area. According to the method, the comprehensive flood risk in the long period of the region is obtained instead of the flood risk of a single rainfall event, support is provided for decision-making activities with large time span or long lasting effect, and the method is suitable for long-term decision-making scenes such as infrastructure construction, community planning and flood premium rate setting.

The invention discloses a one-dimensional hydraulic simulation method for flood routing of a compound multi-flood-discharge channel river, which comprises the following steps of: dividing a to-be-modeled river into a plurality of river sections according to the distribution condition of flood discharge channels, and modeling the whole river section without a separation embankment between a river channel and a bottomland by adopting a one-dimensional hydraulic model, and for a river section with a separation embankment between a river channel and a beach land, transversely dividing the river section by taking the separation embankment as a boundary to obtain a thalweg line and a cross section of each flood discharge channel, independently modeling each flood discharge channel, and establishing a coupling relationship between sub-sections obtained by splitting the same original large section to realize flow exchange. Finally, coupling all the river reaches through nodes according to the actual convergence relation to achieve simulation calculation of the whole river reach. According to the method, the problem of distortion of large-section one-dimensional overall generalized water level calculation is solved, two-dimensional modeling of the bottomland is not needed, the advantage of simplicity and convenience of one-dimensional modeling is reserved, the reliability of a simulation result is guaranteed, the technical practicability and economy are improved, and the actual requirements of flood simulation of water conservancy projects are met.

The application discloses a natural gas metering flow regulation process based on a composite intelligent algorithm, relates to the field of natural gas pipeline flow meter calibration, and aims to solve the problems of large additional pipe capacity of the overall process pipeline, long response time of the flow control process of the regulating valve group, no pressure difference of the whole station at the small flow point, and obvious influence of the time lag of the flow change of the detected meter when compared with the working level, and the technical scheme is as follows: S1, setting the equipment to be calibrated and the supporting equipment to carry out calibration and calibration operation on the flow meter, S2, hydraulic simulation is carried out according to a hydraulic simulation model, S3, the actual situation of the pipeline in the station is simulated to obtain the working condition parameters and the calibration, the pipe which is relatively sensitive to the correction node pressure or flow is obtained by using the friction coefficient sensitivity coefficient method, S4, the valve characteristics are tested, and the corresponding characteristic curve is made, S5, a state prediction control algorithm is designed, S6, a simulation model and a controller are built, and S7, an intelligent calibration system is established. The effect of one-by-one detection and high accuracy is achieved.

The application provides a feature parameter identification correction method and system of a hydraulic online simulation model, belongs to the technical field of data processing, and specifically comprises the following steps: determining joint scheduling processing data of different state change pipe networks by using historical scheduling data of a heat supply pipe network; determining scheduling influence conditions of the heat supply pipe network between heat supply stations of different state change pipe networks in different joint scheduling processing times; determining correlation coefficients of different state change pipe networks based on the scheduling influence conditions; determining correlation conditions of a change pipe network group formed by different state change pipe networks based on the correlation coefficients of different state change pipe networks; and determining a feature parameter identification correction method of a hydraulic simulation model based on the correlation conditions, so that the reliability of load scheduling processing is improved.

This invention provides an energy efficiency operation method, apparatus, equipment, and medium for gas-using equipment. The method includes performing hydraulic simulation on a gas pipeline network to obtain flow rates in multiple pipe segments and pressures at multiple nodes; determining the allocation ratio of multiple pipe segments based on the flow rates of each pipe segment and the starting flow rates of corresponding starting nodes; determining the flow allocation values ​​from each source point to the corresponding user point based on the allocation ratios and the source flow rates of each source point; determining the corresponding calorific value of the mixed gas at each user point based on the flow allocation values ​​and calorific value detection values ​​of different corresponding source points; determining the energy consumption efficiency of the gas-using equipment under different calorific value fluctuations based on the corresponding mixed gas calorific value; statistically analyzing the operation parameters of the target energy consumption efficiency within different calorific value ranges through clustering; and obtaining operation optimization suggestions based on the current mixed gas calorific value and the corresponding operation parameters matched from historical reference data. This improves the accuracy of calorific value monitoring and the energy efficiency of energy-using equipment, and reduces energy usage costs.

The invention discloses a heat supply pipe network roughness optimization method and system based on hydraulic simulation, and relates to the technical field of heat supply system pipe network roughness optimizing.A heat supply pipe network is divided into W areas, a hydraulic simulation model is constructed, heat supply data are obtained, the heat supply data comprise initial cold period data, severe cold period data and final cold period data, and the W areas are divided into W areas; arranging the heat supply data into an input parameter set of a hydraulic simulation model, outputting the optimized roughness of the heat supply pipe network, constructing a population of the roughness of the heat supply pipe network according to the optimized roughness and a preset population number, calculating fitness values of different individuals in the population, obtaining the optimized population, and calculating the optimal roughness of the heat supply pipe network. The optimal roughness of the initial cold period, the optimal roughness of the severe cold period and the optimal roughness of the final cold period of the preset area are obtained, the initial cold period, the severe cold period and the final cold period are calculated according to the preset proportion, the optimal roughness of the preset area is obtained, the optimal roughness of the W areas is obtained, and after main flow distribution is adjusted to be consistent with the actual working condition, the optimal roughness of the W areas is obtained. And carrying out optimization verification on the roughness of the whole heat supply pipe network.

This invention provides a method for joint electro-hydraulic simulation of tunnel boring machines (TBMs), specifically including: establishing a geological simulation model of the supporting tunnel and a multi-body dynamics simulation model in dynamics simulation software; establishing an electro-hydraulic control system simulation model in hydraulic system simulation software; performing joint simulation: the electro-hydraulic control system simulation model transmits signals to the multi-body dynamics simulation model, driving the multi-body dynamics simulation model to perform dynamics simulation; the multi-body dynamics simulation model transmits the signals generated by the dynamics simulation back to the electro-hydraulic control system simulation model for reverse correction; and outputting simulation data. The advantages of this invention are that it can integrate the geological simulation model of the supporting tunnel, the multi-body dynamics simulation model, and the electro-hydraulic control system simulation model; simultaneously, based on bidirectional coupling, it can bidirectionally transmit physical parameters according to the needs of different subsystems, ensuring the accuracy, convenience, and efficiency of simulation analysis.

The invention discloses a hydraulic simulation result processing method and device. The processing method comprises the following steps: acquiring terrain elevation raster data of a hydraulic simulation area; obtaining time sequence hydraulic simulation result raster data of the hydraulic simulation area; on the basis of the obtained terrain elevation raster data and the obtained sequential hydraulic simulation result raster data, determining a total water body of each physical partition space of the hydraulic simulation area; for each determined total water body, determining a dynamic grid data packet of a basic grid corresponding to the total water body at each moment in a full simulation time history; and carrying out serialization output on the determined total water body and the determined dynamic grid data packet. Therefore, the processing efficiency of the hydraulic simulation result is improved.