67 results about "Water simulation" patented technology

The invention relates to the technical field of geological engineering and underground water simulation, and discloses a regional underground water simulation method and system based on a physical mechanism and deep learning, and the method comprises the steps: converting the static attributes of an observation well into the embedding of nodes and edges through a graph neural network, and obtaining spatial features; according to the dynamic input of the observation well, modeling time sequence response of the underground water system under external dynamic driving through a long short-term memory neural network; deep fusion of spatial features and time dynamics is realized through a feature interaction mechanism, and a groundwater level simulation value is generated; combining a water balance constraint with a relative water level consistency constraint between observation wells to jointly construct a composite loss function for quantifying a difference between an analog value and a real observation value, and guiding parameter updating; the time-space dynamic and physical mechanism can be sensed synchronously, and the method is more reliable and efficient.

The invention relates to the technical field of soil engineering model tests, and discloses a test system and method for simulating water and mud bursting of a subsea tunnel under the action of vibration, and the system comprises a multi-degree-of-freedom servo feedback vibration module which is used for providing a multidirectional vibration loading platform and feeding back a motor current signal in real time; the visual rock-soil water inrush simulation and multi-field loading module is mounted above the vibration table and is used for accommodating a sample and applying confining pressure and water pressure load; the hierarchical multi-source data acquisition module is communicated with the discharge port and the observation window, and is used for acquiring the outburst mixture and monitoring physical field data; and the intelligent control and risk assessment analysis module is connected with each module to regulate and control loading parameters and invert a catastrophe state based on feedback data. According to the method, a self-adaptive optimization loading mechanism based on the improved particle swarm optimization algorithm is constructed, so that collaborative progressive regulation and control of pore water pressure and vibration frequency parameters are realized, and a critical threshold point of water inrush and mud inrush catastrophe can be accurately captured.

The invention relates to the technical field of underground water simulation, in particular to an underground water numerical simulation method coupled with vegetation ecology. The method realizes bidirectional coupling between groundwater and vegetation ecology through iteration, and specifically comprises the following steps: inverting vegetation coverage based on groundwater burial depth; inversion of actual evapotranspiration is carried out based on underground water burial depth and vegetation coverage; and finally, updating the net supply amount of the groundwater model based on evapotranspiration until convergence. According to the method, a statistical function relation is established to replace a complex physical model, and drainage and overflow cell water levels are corrected in iteration to ensure calculation stability.

The invention discloses a storm surge coupling numerical simulation method and system based on climate change, and relates to the technical field of numerical simulation, and the method comprises the steps: determining the size of a regional grid according to a pre-obtained regional feature, and carrying out the data reconstruction processing of the obtained heterogeneous spatial data based on the size of the regional grid, and obtaining a comprehensive heterogeneous data set; constructing a comprehensive heterogeneous model, performing model coupling to obtain a comprehensive coupling model, and performing friction coefficient adjustment to obtain a storm surge coupling numerical simulation model; performing storm surge simulation on the comprehensive observation data acquired in real time, and evaluating and optimizing the storm surge coupling numerical simulation model to obtain a storm surge simulation model for storm surge coupling numerical simulation under climate change. Through the comprehensive coupling model, the limitation of traditional single water adding simulation is broken through, and the simulation capacity of extreme water level, offshore water adding and composite disaster processes is remarkably improved.

The invention discloses a storage tank bottom plate corrosion risk prediction method based on electrochemical testing, and relates to the technical field of oil and gas storage and transportation monitoring, and the method comprises the steps: obtaining an external soil sample and an internal deposited water sample of a to-be-predicted storage tank, and obtaining the original environment parameters of the samples; the method comprises the following steps: respectively constructing a soil simulation solution and a deposition water simulation solution based on an out-tank soil sample and an in-tank deposition water sample, and respectively adding a standard metal sample made of the same material as a bottom plate of a to-be-predicted storage tank into the soil simulation solution and the deposition water simulation solution so as to realize an external corrosion test and an internal corrosion test, obtaining a corresponding corrosion test result; and inputting the original environmental parameters, the corrosion test result and the bottom plate information of the to-be-predicted storage tank into a preset corrosion risk assessment model to perform corrosion risk level prediction on the bottom plate of the to-be-predicted storage tank, and outputting the corrosion leakage risk level of the bottom plate of the to-be-predicted storage tank. And the bottom plate can be effectively inspected and predicted without periodically opening the tank.

The invention discloses a passive maintenance-free anti-floating experiment simulation device and an experiment method. The device comprises a foundation pit simulation box; the water injection simulation box is arranged on the outer side of the foundation pit simulation box, and a water injection cavity is formed between the water injection simulation box and the foundation pit simulation box; the bottom of the building simulation box is located on a soil filling layer at the bottom of the foundation pit simulation box, and the foundation pit simulation box and the building simulation box are connected through a pressure sensor; the passive drainage system is arranged in the fill stratum between the foundation pit simulation box and the building simulation box, a closed loop is formed in the foundation pit simulation box, small holes for water permeation are formed in the passive drainage system, the passive drainage system has a drainage gradient, an outlet pipeline is connected to the lowest point of the drainage gradient, and the outlet pipeline is communicated with the building simulation box. The outlet pipeline is connected with an external metering barrel; the water injection system is used for injecting water into the water injection simulation box. According to the method, the passive anti-floating design structure can be verified, the design parameters can be designed, and the anti-floating limit water level can be calculated.

The invention relates to the technical field of urban hydrological simulation. The invention discloses an urban community surface ponding simulation method considering a roof structure, and the method comprises the steps: obtaining a regional multi-angle picture through an oblique photography unmanned plane, generating an oblique photography model through image processing, and reconstructing a digital surface model according to the oblique photography model; ground data are separated from the DSM through a PMF method, roof data are extracted in combination with building features, mask data are output, other ground features are removed, and building roof elevation grid data are obtained; calculating the gradient of the roof, dividing the gradient into flat and sloping roofs, building drainage structures into roof drainage models, integrating the roof drainage models with the urban community hydrological model considering the roofs, and running to realize surface ponding simulation. The method comprises the following steps: building a high-precision model through an oblique photography unmanned aerial vehicle and a GIS, separating ground data through a PMF, and accurately dividing a flat / slope roof through median filtering and an SVM; special drainage structures are arranged for the two types of roofs; and integrating the roof drainage model and a two-dimensional coupling hydrological model, and outputting an accumulated water thematic map.

The utility model discloses a small -size drainage ditch drainage simulation teaching experiment device in the field of agricultural water conservancy, including the soil tank of inside filling soil, drainage ditch system, pressure measurement system, simulation rainfall system and water supply and drainage system, the drainage ditch system includes the fixed drainage ditch of being located soil tank side, inside the sleeve has movable drainage ditch, soil tank and fixed drainage ditch all are the cuboid structure of top opening and realize intercommunication through the porous water permeable board, the width of fixed drainage ditch is greater than the width of soil tank, and inside along its height direction and inserts high overflow board or low overflow board, high overflow board or low overflow board divides fixed drainage ditch into main ditch area and overflow area, movable drainage ditch includes the bottom plate that sets up in proper order, left side board, right side board and back side board, and the small overflow board is inserted between left side board and right side board, and a plurality of through -holes are seted up in the upper half portion of right side board and correspond porous water permeable board. The utility model can promote the field drainage experiment simulation effect and efficiency.

The utility model discloses a kind of collapse pit dewatering aggregation simulation test devices, it is related to testing, measurement technical field.It includes collapse pit simulation system, dewatering simulation system and information acquisition system.Collapse pit simulation system adopts box without top cover, and the collapse pit of different working conditions, filling material can be constructed, so different filling, collapse pit gradient can be simulated test;Dewatering simulation system can spray water body to collapse pit simulation system, and dewatering simulation system can control dewatering height, dewatering area, dewatering intensity and dewatering time by lifting frame, dewatering nozzle, adjustable transformer, timing socket, so that the collapse pit of multiple working conditions can be carried out dewatering aggregation similar simulation test;Information acquisition system obtains the moisture content, pressure and temperature etc. Information of inside filling of collapse pit, it is favorable to ascertain the aggregation behavior of collapse pit dewatering under different working conditions, provide basis for collapse pit ponding management, thereby reduce underground debris flow risk, guarantee mine safety and efficient production.

The present application relates to the technical field of ship offshore test, particularly relates to a kind of offshore wind power floating platform special-purpose stainless steel pipe water entry simulation test device and use method. Including the steel pipe limiting unit for fixing steel pipe, the steel pipe limiting unit is provided with the outer measuring unit for applying pressure to steel pipe from outside directly above, the steel pipe limiting unit and outer measuring unit main body are all fan-shaped structure. The present application is extended to the inside of steel pipe by electric push rod driven inner measuring head body, then start micro servo cylinder to push the pestle head to extend to extension way, and sliding fit occurs with each group of inclined plane, so that each group of test block is pushed out side export, and simultaneously extruding to each orientation of steel pipe inner wall, then control micro servo cylinder reset, so as to realize the anti-pressure test to steel pipe inner wall. Steel pipe inside and outside can be tested, and the functionality of the device is enriched.

This invention discloses a method and system for reverse reconstruction of river topography based on flood traces and trial calculations, relating to the fields of water conservancy engineering, flood simulation, and topography reconstruction. In the absence of pre-flood measured topographic data, this method constructs possible topographic change ranges by collecting multi-source information such as post-flood images, engineering design data, and historical flood traces. Multiple trial calculations are performed using a hydraulic model to invert pre-flood topographic parameters. Finally, the method is verified using measured data such as scour depth and water level traces, achieving reliable reconstruction of the pre-flood topography. This invention solves the problem of traditional methods relying on historical topographic data and is applicable to scenarios such as flood scour impact assessment, engineering safety verification, and flood control design optimization.

The application discloses an ultrasonic water meter detection device, which comprises a main control module and an analog metering module. The main control module is connected with the control end of the analog metering module, and the test end of the analog metering module is connected with the ultrasonic water meter. The main control module is used for generating a water flow simulation signal according to water flow setting information and sending the water flow simulation signal to the analog metering module. The water flow simulation signal comprises a water flow state signal and a water flow speed signal. The ultrasonic water meter is used for sending an ultrasonic detection signal to the analog metering module in real time after being triggered. The analog metering module is used for receiving the ultrasonic detection signal and the water flow simulation signal, generating a water flow feedback signal that can be received by the ultrasonic water meter according to the ultrasonic detection signal and the water flow simulation signal, and sending the water flow feedback signal to the ultrasonic water meter to simulate different water flow states. The application reduces resource consumption, time cost and human intervention intensity, and improves the test fault tolerance.

This utility model discloses an automotive rubber strip sealing test device, relating to the field of rubber strip testing technology. It includes a base, a simulation box fixed to the top of the base, a test box fixedly inserted to the back of the simulation box, a simulated inner door panel block fixed to the open side of the test box, and a simulated outer door panel block hinged to the simulated inner door panel block. Both the simulated inner and outer door panel blocks are located inside the simulation box. A blower simulation component and a water spray simulation component are installed on the base. The blower simulation component, in conjunction with the water spray simulation component, simulates natural weather conditions. The sealing performance of the rubber strips installed on the simulated inner and outer door panel blocks is tested using wind and water. By observing whether the fabric strips inside the test box sway and whether water accumulates inside the test box, the sealing performance of the automotive rubber strips can be accurately and effectively determined, meeting the requirements for standardized testing of automotive rubber strips.

The invention provides an urban surface and underground space flood simulation method based on a hydrodynamic model, and belongs to the technical field of urban flood disaster prevention and control and hydrological hydraulic engineering. The method comprises the steps of urban surface and underground space generalization processing, model element coupling association establishment, model element algorithm setting and model result calibration verification. The model established by the method has high-performance and high-precision computing power, can efficiently and accurately simulate the flowing form of flood in the urban complex underground space, and provides support for urban flood early warning.

The application provides a deep learning-based historical flood inundation dynamic reconstruction method and system, and relates to the technical field of flood simulation. The method comprises the following steps: obtaining a standardized historical flood data set; locating P topographic cavity defects; matching and reusing P adaptive filling models in a topographic filling model library according to P missing feature vectors; performing multi-thread parallel processing of the P topographic cavity defects; performing pixel-level replacement of the P topographic cavity defects using P corrected topographic structures to obtain corrected DEM data; after constructing a two-dimensional water dynamic model based on the corrected DEM data, driving the two-dimensional water dynamic model to perform flood simulation by setting a water dynamic boundary control set, and outputting a historical flood dynamic evolution process. The application solves the technical problem that the flood simulation accuracy is limited due to incomplete topographic data and insufficient simulation generalization ability in different regions in the prior art, thereby affecting the accuracy of flood dynamic reconstruction, and improves the flood simulation accuracy.

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 utility model provides an environment simulation system for a linear acceleration loading test. The environment simulation system comprises a temperature simulation assembly, an illumination simulation assembly and a water simulation assembly, wherein the temperature simulation assembly comprises an air conditioner module, a thermal lamp module and an underground coil pipe; the air conditioner module is arranged on the outer side of a machine shell of the linear acceleration loading device and used for circulating ventilation to the machine shell, the thermal lamp module is arranged in the machine shell and radiates heat energy towards a test road surface, and the underground coil pipe is buried in a roadbed below the test road surface and used for circulating a refrigerant or a heating medium. The illumination simulation assembly comprises an ultraviolet dot matrix light source arranged in the shell, and the illumination intensity of the ultraviolet dot matrix light source is adjustable; the water simulation assembly comprises a spraying module arranged in the machine shell and a water seepage pipe network arranged in the roadbed, and the water seepage pipe network is located below the underground coil pipe. According to the linear acceleration loading test environment simulation system provided by the utility model, the data accuracy and reliability of a linear acceleration loading simulation test are improved.

The invention relates to a dynamic water surface heat dissipation coefficient determination method for thermal discharge simulation of a nuclear power plant, and the method comprises the steps: obtaining historical meteorological and hydrological data of the nuclear power plant, the time span being longer than 10 years, and the historical meteorological and hydrological data at least comprising wind speed, air temperature, water temperature and relative humidity; performing climate node division based on the historical meteorological and hydrological data to obtain a plurality of climate seasons; calculating a meteorological and hydrological parameter set for each climate season; for each meteorological and hydrological parameter set, calculating a corresponding water surface comprehensive heat dissipation coefficient; and obtaining current meteorological and hydrological data, determining a current climate node, and dynamically selecting the water surface comprehensive heat dissipation coefficient corresponding to the current climate node. One year is divided into a plurality of climate seasons, and a specific water surface heat dissipation coefficient value is calculated for each season, so that key parameters in numerical simulation can dynamically respond to periodic changes of actual meteorological and hydrological conditions, and the effect that the simulated temperature rise field is more consistent with the actual condition in time dimension and space distribution is achieved.

The application discloses a passive maintenance-free anti-floating experiment simulation device and an experiment method, and relates to the technical field of anti-floating design, and can be used for verifying a passive anti-floating design structure, designing parameters and calculating an anti-floating limit water level.

The invention discloses a device for simulating different drought environments to start debris flow and an air resistance monitoring method, and belongs to the technical field of geological disaster simulation tests. The three sets of parallel variable gradient test boxes are connected in parallel and converged into the main circulation channel, so that visual and quantitative research on the debris flow starting and migration process under different drought environments and surface salinity conditions is realized. The device is provided with an intensity-controllable fan-shaped atomization rainfall simulation system, a temperature simulation system, a capillary water supply and salt migration system, a wireless landfill type pressure sensing array and a multi-channel water collection system, and a special moisture field with a wet lower part and a dry upper part and an air resistance effect of an arid river valley are accurately represented, so that critical conditions for starting debris flow are revealed. According to the method, high-precision simulation of the arid valley debris flow starting process and real-time monitoring of the air resistance effect are achieved, test repeatability and prediction precision are improved, and effective technical means and quantitative basis are provided for geological disaster mechanism research, early warning model construction and prevention and control measure optimization in the western arid valley area.

This invention provides a method for identifying the preferential flow path of microplastics in groundwater, relating to the field of groundwater pollution monitoring. The method includes: marking microplastic particles with an organotantalum compound via bulk embedding; adding the microplastic particles to a groundwater simulation solution to prepare a tracer suspension; introducing the tracer suspension into a groundwater simulation system and conducting a preferential flow tracer experiment; setting sampling points at different spatial locations within the groundwater simulation system and collecting water samples from each sampling point; quantitatively analyzing the tracer signals of the water samples from each sampling point to obtain the organotantalum compound content at each sampling point; and determining the preferential flow path of the microplastics in the groundwater simulation system based on the organotantalum compound content at each sampling point. This method addresses the technical problem of the lack of existing technologies for systematically identifying the preferential flow path of microplastics in groundwater systems based on particle tracer signals.

The application discloses a kind of river basin joint scheduling hydrology hydrodynamic coupling flood simulation method and system, the method comprises: collecting multi-source river basin data and carrying out standardization pretreatment to obtain pretreatment river basin data;Hydrology and hydrodynamics model based on two-way coupling mechanism are used to carry out real-time coupling flood simulation calculation to pretreatment river basin data, to obtain coupling flood simulation result;By pre-set engineering scheduling priority matrix, linkage coefficient dynamic calculation formula, conflict resolution strategy tree, extreme working condition scheduling step and global collaborative constraint, the coupling flood simulation result is processed to output initial scheduling scheme;Based on flood control safety target, water resources utilization target and engineering safety target, the initial scheduling scheme is iteratively optimized using improved NSGA-II algorithm to output optimal scheduling scheme set;The method can improve the real-time and accuracy of hydrology hydrodynamic coupling, realize the quantification and precision of multi-engineering scheduling.

The application relates to the field of surface water-underground water simulation test devices, in particular to a river-underground water seepage simulation system and method considering the influence of seawater backflow, which comprises an observation tank, the observation tank comprises a seepage area in the middle in the transverse direction, and a saltwater chamber and a freshwater chamber are arranged on the two sides of the seepage area respectively; one of the peripheral walls of the observation tank is a transparent observation side peripheral wall; a first water supply mechanism is used for inputting freshwater with a first color into the freshwater chamber; a second water supply mechanism is used for outputting the freshwater; a tide generating device is used for simulating a tide generating process and outputting saltwater with a second color; the freshwater output by the second water supply mechanism and the saltwater output by the tide generating device are mixed in a mixing chamber and then input into the saltwater chamber; a camera is used for shooting the picture displayed by the whole observation side peripheral wall in real time; the system does not simply simulate the influence of seawater on underground water, but comprehensively considers the influence of salt tide on underground water after the salt tide is mixed with surface water, and is more practical.

The utility model discloses a drainage simulation device for building water supply and drainage design, and relates to the technical field of building engineering, the drainage simulation device comprises a water tank, the outer wall of the water tank is fixedly connected with a controller, the inner wall of the water tank is fixedly connected with a conveying pipe, the outer wall of the water tank is provided with a filtering mechanism, and the filtering mechanism comprises a first motor. By means of the protruding block and the filtering plate, when the protruding block moves, the filtering plate can be driven to move, then the filtering plate can drive the sliding rod to move, when the sliding rod moves, the spring can be extruded, and when the cam does not make contact with the protruding block, the spring can extrude the sliding rod, so that the sliding rod is reset; and then, the filter plate also resets along with the sliding rod, so that the filter plate moves up and down, the resource utilization rate is improved, the used water source can be effectively filtered and recycled, and the situation that the used water source contains particle impurities, and consequently the spray header is blocked is avoided.

This invention belongs to the field of steel smelting technology and discloses a method for removing and supplementing abnormal data of simulated water conductivity. The method includes: acquiring raw simulated water conductivity data and performing data preprocessing; analyzing the regularity of the raw simulated water conductivity data; if a regularity is determined, setting data removal and supplementation rules, determining the upper and lower limits of non-abnormal simulated water conductivity data, the deviation value of abnormal simulated water conductivity data, and the supplementation rules for abnormal simulated water conductivity data, and judging and processing the abnormal simulated water conductivity data; judging the expected data of the processed abnormal simulated water conductivity data; if it meets the expected data, outputting the data; otherwise, reprocessing the abnormal simulated water conductivity data until it meets the expected data. This invention effectively removes and supplements abnormal data by setting data removal and supplementation rules, improving data analysis efficiency.

The application discloses a kind of weather-resistant sealing strip structure's modeling simulation method and system, comprising: the initial three-dimensional grid model of the sealing strip to be analyzed is constructed and is given initial material attribute, sequentially applied to model precipitation simulation working condition and dry environment simulation working condition, extract the surface microcrack node in open state and input to local corrosion evolution prediction model to output local corrosion degradation coefficient, after replacing initial corrosion rate parameter, Markov model for surface microcrack node is constructed and degradation coefficient is converted into state transition probability matrix, subsequently, the grid cell degradation state is calculated by Markov model, the surface microcrack node corresponding to the grid cell that occurs perforation failure is marked as high-risk perforation node.The application solves the problem that the prior art cannot effectively simulate and accurately predict the in-situ local punctiform perforation failure caused by microcrack water evaporation concentration.

The utility model discloses a buried pipeline mechanical response test device under a traffic load effect, and relates to the technical field of buried pipeline mechanical response test. Comprising a test box body, the test box body is provided with a test mechanism used for mechanical response of the buried pipeline under the traffic load effect, the test mechanism comprises an adjusting assembly, the adjusting assembly comprises a sliding rail support fixed to the upper end of the test box body, and the sliding rail support is internally provided with a mounting support connected through a thread assembly; by means of water spraying simulation and compaction treatment, soil environments with different humidity and compaction degrees can be simulated, the test result is closer to the actual situation, and the device not only can be used for simulating pipeline mechanical response under the action of traffic loads, but also can be used for simulating pipeline mechanical response under the action of the traffic loads, and can also be used for simulating pipeline mechanical response under the action of the traffic loads. And the influence of different soil conditions on the pipeline performance can be researched by adjusting the water spraying amount and the compaction degree.

The invention discloses a sponge city design method and system, a terminal and a storage medium, and the design method comprises the steps: obtaining second multi-source data of a target region, the second multi-source data comprising future predicted rainfall data, topographic data, ground coverage data and drainage system data; building future climate scene simulation of the target area according to the second multi-source data to generate a future scene ponding distribution map; based on the historical scene ponding distribution diagram and the future scene ponding distribution diagram, constructing a drainage layout optimization first model; and solving the drainage layout optimization first model to output an optimal design scheme. According to the method, historical scene ponding simulation and future scene ponding simulation are realized by fusing the historical rainfall data and the future predicted rainfall data, so that future climate changes are coped, capacity expansion requirements are planned in advance, later reworking is avoided, and a feasible technical scheme is provided for rainfall flood management of a sponge city.

The invention relates to the technical field of water gushing simulation, and discloses a test device for simulating water gushing and sand bursting of a unconsolidated formation, the test device comprises a first barrel, the surface of the first barrel is oppositely provided with partition plates, the inner bottom wall of the first barrel is uniformly provided with a plurality of axial sliding grooves along the circumferential direction, and one side, far away from the partition plates, of the surface of the first barrel is fixedly connected with an air pump; the output end of the air pump is fixedly connected with an air conveying pipe, a pressurizing assembly is arranged on the inner wall of the first barrel, and confining pressure is applied to the sand layer filled in the first barrel during testing in the working state. Through the arrangement of the water injection assembly, when water bursting and sand bursting simulation is carried out, the physical thickness of a thin film and the prefabricated depth of a cross-shaped film breaking line can be adjusted, different thicknesses and completeness of a key waterproof thin rock layer between a water-rich unconsolidated formation and an underlying sand layer in the two-Huai coal field area are simulated, and the sand bursting simulation test after thin rock layer bursting is achieved; and a plurality of test data in the same environment can be accurately simulated, so that the experiment efficiency is greatly improved.