254 results about "Water simulation" patented technology

The invention discloses a method for simulating and forecasting flood in a cold highland area based on hydrological and hydrodynamic coupling, and belongs to the technical field of disaster forecasting. The method specifically comprises the following steps: S1, multi-source basic data collection and preprocessing: collecting multi-type and multi-scale basic data for a target cold and cold mountainous area drainage basin; and S2, deep learning correction and fusion of the satellite rainfall data: aiming at the local overestimation and underestimation problems of the satellite rainfall data, a deep learning algorithm is adopted to carry out hour scale correction and fusion. Four types of core data of satellite remote sensing, reanalysis, ground observation and geographic space are collected, total factors of'rainfall-runoff-terrain-underlying surface 'required by flood simulation in the cold and cold mountainous area are covered, simulation one-sidedness caused by lack of data types in traditional modeling is avoided, rainfall and runoff abnormal values are eliminated by adopting a 3-sigma criterion, data formats and spatial-temporal scales are unified, and the modeling efficiency is improved. A standardized data set is formed, and interference of abnormal values, format incompatibility and space-time mismatching on subsequent model input is avoided.

The invention relates to the technical field of grouting simulation tests, in particular to a test device and method for simulating dynamic water condition composite stratum tunnel grouting, and the test device for simulating dynamic water condition composite stratum tunnel grouting comprises a model box, a water storage tank, a single-ring duct piece, a dynamic water simulation system, a grouting system and a data acquisition and analysis system; the model box is filled with a permeable medium, the single-ring duct piece is arranged in the permeable medium, the grouting system is connected with the single-ring duct piece, and grouting slurry is colored; the dynamic water simulation system comprises a water supply system and a drainage system, the data acquisition and analysis system is arranged on one side of the model box and used for acquiring and analyzing the state of grouting slurry in the model box, and the problem that grouting and seepage conditions of different seepage fields cannot be visually observed and simulated in a traditional grouting test is solved. The seepage field grouting simulation test is simplified, and the seepage field grouting effect in the pore stratum cannot be effectively researched.

The invention provides a drainage basin mountain torrent debris flow physical process simulation method for risk early warning, which comprises specific research and development contents and corresponding problems and achieves the following purposes: constructing a drainage basin unit database, clarifying drainage basin and channel characteristics, and providing data support based on physical process refined simulation; and carrying out basin hydrological process simulation research on the basis of the SWAT distributed model for improving glacier melt water simulation. A mountain torrent and debris flow disaster whole-process coupling model is constructed, a dynamic data chain is used for connecting watershed hydrology and a channel water and sediment dynamic process, full-link simulation from rainfall to disaster modeling is achieved, a disaster forming mechanism is accurately revealed, a visualization system is integrated through the model, channel disaster dynamic evolution evaluation and risk zoning functions are provided, and the reliability of channel disaster dynamic evolution evaluation is improved. A forecasting system designed in an object-oriented development mode can be seamlessly accessed to a provincial early warning platform, and a systematic solution is provided for early warning of watershed or regional disasters.

The invention belongs to the technical field of three-dimensional geological modeling, and discloses a real-time three-dimensional geological modeling system and method based on groundwater dynamics. The system comprises a geological data acquisition module, a complex geological structure modeling module, a geological body internal attribute simulation module, an underground water monitoring module, an underground water simulation module, a geological evolution simulation module, an underground water-geological body simulation module and a visual interaction module. By integrating multi-source data and applying advanced data cleaning and quality control technologies, the accuracy and consistency of the data are ensured, then by utilizing advanced geologic structure modeling and geologic body internal attribute simulation technologies, a high-precision three-dimensional geologic body model is constructed, and the accuracy and consistency of the geologic body model are improved. A reliable space frame is provided for dynamic simulation and analysis of underground water, and timely and accurate information support can be provided for water resource management and environmental protection. The method has a wide application prospect and an important practical value in the fields of dynamic monitoring, analysis and simulation of underground water.

The invention discloses a three-dimensional fracture network rock mass dynamic water environment thermal-fluid-solid coupling grouting test device and a corresponding test method. The device comprises a grouting system and a high-temperature flowing water simulation system, and the grouting system is used for conducting simulation grouting on the three-dimensional fracture network rock mass model in the grouting test process; and the high-temperature dynamic water simulation system is used for providing a dynamic water source with a set temperature for the grouting test. The high-temperature flowing water simulation system comprises a constant-temperature water source (4), a flowing water pipe (5) and an electric heating wire (22). The device and the method can be used for high-temperature dynamic water grouting and triaxial loading tests, so that the three-dimensional fracture network rock mass model is in a high-temperature dynamic water and triaxial compression environment, and therefore, a heat-fluid-solid multi-field coupling environment in an actual underground rock mass can be effectively simulated.

The invention provides an urban water network drainage joint scheduling method and system, and relates to the technical field of urban flood control and drainage, and the method comprises the steps: carrying out the fusion processing of multi-source monitoring data, and obtaining a feature vector; inputting the feature vector into a runoff prediction model for runoff prediction to obtain a comprehensive runoff prediction result; based on the comprehensive runoff prediction result, pipe network water flow and surface accumulated water simulation is conducted through a drainage hydraulic model, and a target simulation result is obtained; performing waterlogging risk assessment based on the target simulation result and the monitoring data to obtain a waterlogging risk level; selecting a corresponding scheduling generation mode based on the weather forecast data, the monitoring data and the waterlogging risk level; and determining a corresponding scheduling strategy based on the selected scheduling generation mode and the waterlogging risk level. According to the urban water network drainage joint scheduling method and system provided by the invention, accurate prediction simulation and scientific scheduling are realized, and the drainage efficiency is further improved.

The invention discloses a figure operation effect quantitative evaluation method based on analogue simulation and live rainfall, and the method comprises the steps: collecting related data, and carrying out the preprocessing of the related data; the related data comprises reanalysis field or analysis field data, lattice live rainfall field information and artificial influence weather operation information; numerical simulation is started, the precipitation increasing rate and the operation influence area range are calculated, and accuracy evaluation is carried out on precipitation in the influence area of mode simulation; calculating the average precipitation increasing rate on the precipitation simulation hit grid point, and complementarily calculating the average precipitation increasing rate on the precipitation simulation missing report grid point; and calculating the rainfall increment based on the actual rainfall, optimizing the rainfall increment according to offset to obtain a corrected rainfall increment, and outputting the corrected rainfall increment as an evaluation result. The method not only can improve the precision of quantitative evaluation of the weather modification operation effect, but also has good interpretability, and can be directly applied to a quantitative evaluation system of the weather modification operation effect.

The utility model discloses a small-sized full-scale test device for simulating slope instability. The device comprises a side slope simulation device body, a supporting bottom plate arranged at the bottom end of the side slope simulation device body, a lifting support arranged below the supporting bottom plate, a water collecting and flow guiding groove formed in the bottom end of the periphery of the supporting bottom plate, and a rainfall simulation structure arranged above the side slope simulation device body and comprising a rainfall pipeline network and vertical rods. The dewatering pipeline network is connected with an external water source through a water conveying pipeline; a camera is arranged on one side of the slope simulation device body; the side slope simulation device body comprises layered tamped side slope soil, and a sensor assembly is arranged in the side slope soil and connected with an external computer terminal through a circuit. According to the device, the slope instability condition is tested by simulating rainfall, increasing load and simulating the foundation sinking environment, real-time change data of slope instability is obtained, and data support is provided for slope protection design, construction guidance and timely early warning in disaster weather.

The invention discloses an irrigation area ditch drainage-farmland waterlogging simulation evaluation method. The method comprises the following steps: S1, obtaining meteorological and hydrological data, DEM data, drainage facility vector data and land utilization classification data of a target area; s2, generalizing a drainage system of the irrigation area, and generating nodes, drainage channels and sub catchment area. Shp files; s3, converting the. Shp file into an. Inp file, constructing a parameterized model, and performing parameter calibration and verification on the model; s4, simulating waterlogging conditions under different rainfall and channel siltation situations; s5, extracting overflow node data, and performing flood inundation analysis; and S6, generating a flood risk density map according to the overflow node data. The invention further discloses an irrigation area ditch drainage-farmland waterlogging simulation evaluation system. According to the irrigation area ditch drainage-farmland waterlogging simulation evaluation method and system disclosed by the invention, the problem that ditch drainage simulation and farmland waterlogging risk evaluation cannot be carried out under an irrigation area waterlogging disaster in the prior art is solved.

The invention relates to the technical field of sailboat training instruments, and provides a real-time simulation platform for sailboat exercise training, which comprises a training sailboat used for trainee driving training; the rainwater simulation mechanism is used for simulating the influence of raining on the sight of the driver in rainy days; the water inlet mechanism is used for simulating the influence on the operation of a driver when the training sailboat inclines in rainy days and water enters a cockpit; and the water pumping mechanism is used for simulating internal drainage of the cockpit and recycling recycled water resources. Through the cooperation of the rainwater simulation mechanism, the control mechanism and the water inlet mechanism, the sailboat training simulation platform can simulate the influence of rainwater blowing to a cab from different directions on the sight of a student, can simulate the influence condition of the amount of different rainwater blowing to the interior of the cab from different directions on the sight of the student, and meanwhile, can simulate the influence condition of the amount of rainwater blowing to the interior of the cab from different directions. The sailboat training simulation platform can simulate the influence of rainwater on the deck of the training sailboat entering a cockpit due to the inclination of the boat body on the operation and driving of trainees in rainy days.

The invention relates to a river channel confluence stabilization and efficient calculation method of a distributed hydrological model CASC2D, and the method comprises the steps: employing a semi-implicit local inertial wave method in a river channel unit to carry out the stable solving of a water flow evolution process, effectively inhibiting the numerical oscillation, and improving the model calculation efficiency; meanwhile, parallel computing is carried out on the double-layer nested grid structure of the model through OpenMP, a thread safety control and dynamic scheduling mechanism is matched, synchronous waiting and data competition are remarkably reduced, and the parallel utilization rate is increased. The method is particularly suitable for flood simulation of small and medium-sized watersheds in mountainous and hilly areas, the model calculation efficiency can be improved by 15 times while high-precision simulation is kept, and the risk of numerical instability under the short-time high-intensity rainfall condition is remarkably reduced. The method does not need to depend on a GPU or a distributed cluster platform, has high universality, good portability and engineering realizability, and is suitable for various application scenes such as flood forecasting, risk analysis and real-time scheduling.

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 discloses an irrigation water utilization coefficient evaluation method and system based on irrigation area water use whole process simulation, and relates to the technical field of agricultural water-saving irrigation. Irrigation water utilization information is obtained through multi-source data fusion; based on the irrigation water utilization information, constructing an irrigation area water utilization whole-process simulation model; the whole-process water consumption simulation model for the irrigated area comprises main canal water simulation, field canal water simulation and field crop water simulation; calculating a water delivery utilization coefficient, a water distribution utilization coefficient and a field water utilization coefficient by utilizing the irrigation area water utilization whole-process simulation model; and multiplying the obtained water delivery utilization coefficient, water distribution utilization coefficient and field water utilization coefficient to obtain an irrigation water utilization coefficient. The irrigation water utilization coefficient is accurately measured and calculated, the water utilization efficiency of crops is accurately evaluated, and fine management of water utilization in an irrigation area and water-saving benefit evaluation can be achieved.

The invention provides a biological agent with a scale inhibition effect. The biological agent comprises plant lactobacillus, pseudomonas and a saccharomyces cerevisiae strain. The biological scale inhibitor is a mixture of independent fermentation broth containing the three bacteria, the three bacteria are compounded according to different proportions, and the static scale inhibition effect is tested. The preparation is applied to 10L and 100L circulating water simulation systems, the microbial agent is added according to the proportion that the microbial agent is added every 7 days and the total amount of the microbial agent added each time accounts for 0.01%-0.05% of the circulating water, and compared with a control group, an experimental group added with the biological scale inhibitor shows better scale inhibition and algae inhibition effects within four weeks. The microbial agent disclosed by the invention is applied to a 2800m < 3 > circulating water cooling system for a scale inhibition test, and shows a stable scale inhibition effect compared with a conventional chemical scale inhibitor in a test period of 30 days.

The invention belongs to the field of polluted groundwater remediation, discloses a test device and method for photocatalytic regulation and control of the service performance of a permeable reaction barrier, and aims to provide the test device for the service performance of the permeable reaction barrier and improve the test accuracy. The equipment comprises a polluted underground water simulation device, an underground water inlet device, a permeable reaction barrier, an underground water outlet device, a water catchment device, a metering device and a monitoring device, a water outlet of the polluted groundwater simulation device is connected with a water inlet of the groundwater inlet device, the groundwater inlet device, the permeable reaction barrier and the groundwater outlet device are sequentially connected, and a sealing plate capable of moving up and down is arranged on one side, close to the groundwater inlet device, of the permeable reaction barrier; a water outlet of the underground water outlet device is connected with the water catchment device, a water outlet of the water catchment device is connected with the metering device, and the monitoring device is respectively connected with the polluted underground water simulation device, the underground water inlet device, the underground water outlet device, the water catchment device and the metering device.

The invention provides a historical flood inundation dynamic reconstruction method and system based on deep learning, and relates to the technical field of flood simulation, and the method comprises the steps: obtaining a standardized historical flood data set; positioning P terrain cavity deficiency; matching and multiplexing P adaptive filling models in a terrain filling model library according to the P missing feature vectors; carrying out multi-thread parallelization of P terrain cavity deletion; adopting the P corrected terrain structures to carry out pixel-level replacement of P terrain cavity missing to obtain corrected DEM data; and after a two-dimensional hydrodynamic model is constructed based on the corrected DEM data, a hydrodynamic boundary control set is set to drive the two-dimensional hydrodynamic model to execute flood simulation, and a historical flood dynamic evolution process is output. According to the flood simulation method and device, the technical problem that the flood dynamic reconstruction accuracy is affected due to the fact that the flood simulation accuracy is limited due to the fact that topographic data are incomplete and the simulation generalization ability in different areas is insufficient in the prior art is solved, and the flood simulation accuracy is improved.

The invention discloses a cascade reservoir continuous dam break two-dimensional flood simulation method and device and a medium, and relates to the technical field of hydrodynamic modeling and flood disaster simulation. The method comprises the steps that under the condition that the regulation and storage effect of an interval reservoir and the influence of continuous dam break are not considered, on the basis of data related to a cascade reservoir, a flood disaster simulation model is established; carrying out overall two-dimensional modeling on the cascade reservoir to obtain an overall two-dimensional hydrodynamic model and a maximum submerging range; step-by-step segmentation is carried out on the cascade reservoirs according to the number of the reservoirs, two-dimensional modeling is carried out on the reservoirs in each segment, and segment two-dimensional models are obtained; in the step-by-step simulation process, based on the dam break rule of the reservoir in each step, an overall two-dimensional hydrodynamic model or a segmented two-dimensional model is adopted for simulation, and a submerging result of the segmented two-dimensional model of each step is obtained; and superposing the maximum submerging range and the submerging result, and finally generating a cascade reservoir dam break flood risk map. According to the method, the calculation efficiency and accuracy of cascade reservoir continuous dam break simulation analysis can be improved.

The invention relates to the field of disaster prevention and management, and particularly provides an intelligent decision-making method and device for realizing flood simulation prevention in combination with Cesium, and the method comprises the following steps: S1, geographic data access; s2, realizing real-time monitoring and analysis of hydrological conditions; s3, flood simulation model construction comprises hydrodynamic model construction, model parameter setting and optimization, and mechanism real-time updating; s4, processing physical interaction of the water flow by a Chaos physical engine of Unreal Engine, and associating physical data of Chaos through modular logic; s5, integrating an LSTM time sequence prediction model and combining with hydrological real-time rainfall to realize a flood routing trend; s6, displaying key disaster areas and disaster water level conditions by HeatMap; and S7, identifying a nearby refuge point location, and scientifically and reasonably arranging an emergency path. Compared with the prior art, intelligent decision management can be provided for pre-disaster simulation prevention and post-disaster rescue recovery.

The invention is suitable for the technical field of petroleum engineering, and provides a true triaxial hydraulic fracturing experimental device for a low-permeability medium. Comprising a fracturing chamber; a square simulation medium is arranged in the fracturing chamber, three faces of the simulation medium are attached to three faces in the fracturing chamber, the other three faces of the simulation medium are attached to three pressing plates respectively, each pressing plate is connected to the output end of an oil cylinder, the oil cylinders are installed on the fracturing chamber, and a fracturing pipe is further arranged in the center of the simulation medium. Drainage filter plates are arranged on the side, close to the simulation medium, of the pressing plate, and drainage filter plates are arranged at the positions, attached to the simulation medium, in the fracturing chamber; the fracturing pump injection device is used for injecting fracturing fluid into the fracturing pipe in the fracturing chamber; and a true triaxial loading device. The drainage filter plates are arranged on all the faces of the simulation medium, all the faces can drain water in the fracturing process when the real pressure environment is simulated, and simulation is more real.

The invention discloses a device and method for simulating the freezing and thawing cycle process of collapsible loess in the natural environment, and belongs to the technical field of geotechnical engineering.The device comprises a test box provided with a sample groove, a rainfall simulation system is arranged on the upper portion in the test box, an underground water seepage simulation system is arranged on the lower portion in the test box, and the sample groove is connected with a loading system; a weighing system is arranged at the bottom in the test box, the weighing system is connected with an underground water seepage simulation system, a settlement and internal damage monitoring system is arranged between the weighing system and the rainfall simulation system, and a freezing and thawing circulation system is arranged on the inner side wall of the test box. According to the invention, the natural environment of the loess plateau area can be simulated, and the strength change of the strong salinized soil in the dry-wet process can be tested and researched under the combined action of various factors such as rainfall, load, underground water seepage and freeze-thaw cycle.

The system comprises a water storage container and a control system, a partition plate and a moving plate connected with a driving mechanism are arranged in the water storage container, a sensor system of the control system is used for monitoring state parameters of the moving plate and the water supply flow of the water storage container, and after the target rainfall intensity is determined, the target rainfall intensity is determined; the controller is used for obtaining state estimation of the moving plate based on the state space model and the state parameters of the moving plate, calculating real-time rainfall intensity by combining the water supply flow of the water storage container, and dynamically controlling the driving mechanism to operate in a closed-loop mode with the target of reducing the error between the target rainfall intensity and the real-time rainfall intensity. The movable plate is driven to move relative to the partition plate to adjust the water outlet area, rainfall holes of the water storage container discharge water to simulate rainfall for an irrigation test, dynamic response continuous adjustment of simulated rainfall intensity can be achieved, natural rainfall scenes of different rainfall intensities and modes can be reproduced in a high-precision mode, a reliable test platform is provided for agricultural irrigation research, design is flexible, and the test efficiency is high. The operability is high.

The invention provides an underwater vibration table test device and method, and the device comprises a simulation box which comprises a box body which extends in a first direction and is used for loading water to simulate an underwater environment and providing a carrying table for a first slope at the bottom of the box body; the wave device is arranged in the simulation box and used for generating waves in the first direction; the wave current device is arranged in the simulation box and is used for generating wave current along a first direction; the at least two mounting grooves are formed in the bottom of the simulation box side by side in the first direction and / or the second direction; the vibration device at least comprises a table top, the table top is embedded into the mounting groove, a carrying table is provided for the second side slope, and the vibration device provides vibration in one or more directions of the first direction, the second direction and the third direction for the interior of the box body; wherein the first direction and the second direction are perpendicular to the plane where the table top is located, and the plane where the third direction is located is perpendicular to the table top. The response of the second slope under the action of coupled earthquakes, waves and wave flows can be simulated.

The invention discloses a compaction water release simulator, relates to the technical field of monitoring and prediction, and mainly aims to accurately simulate the compaction water release process of an aquitard and the accumulative effect of long-term land subsidence. According to the main technical scheme, the compaction water release simulator comprises a mold cylinder used for containing a soil body sample, a drainage assembly is arranged on one side of the mold cylinder in the axial direction, and a pressing rod is arranged on the other side of the mold cylinder in the axial direction; the first driving assembly is connected with the pressing rod, and the first driving assembly is used for driving the pressing rod to ascend and descend; the control assembly comprises a pressure sensor and an analysis module, the pressure sensor is connected with the first driving assembly and used for monitoring the pressure value of the first driving assembly acting on the soil body sample through the pressing rod, and the analysis module is connected with the pressure sensor and the first driving assembly and used for obtaining the pressure value; and comparing with a preset interval, and controlling the first driving assembly to move based on a comparison result.

The utility model discloses a fire hydrant simulation demonstration device, which relates to the technical field of safety education equipment and comprises a simulation display screen, a first water gun, a fire box assembly, a water supply assembly and a control system, the simulation display screen is used for simulating a fire scene, the first water gun is arranged at the top of the water supply assembly, and a flow meter is arranged at a water outlet of the first water gun. A water inlet of the first water gun communicates with the fire-fighting box assembly through a pipeline, the water supply assembly is used for supplying water to the fire-fighting box assembly, and the simulation display screen, the flowmeter and the water supply assembly are all electrically connected with the control system. According to the utility model, through simulation of a fire scene, trainees can truly and intuitively carry out full-process actual operation on a use method, a connection mode and water outlet fire extinguishment of the fire hydrant, the use method of the fire hydrant is mastered skillfully, and scientific fire extinguishment skills are mastered.

The invention discloses a rainfall simulation data generation method, device and system and a medium. The method comprises the following steps: constructing a rainfall simulation model for simulating a rainfall event, and obtaining a parameter boundary condition and a target function of the rainfall simulation model in a target range; obtaining rainfall statistical data of a specified time dimension collected by a plurality of observation stations in the target range, and generating rainfall sequence data; inputting the rainfall sequence data into a rainfall simulation model, and calculating to obtain model optimal parameters corresponding to each observation station according to the target function and the parameter boundary conditions; and generating rainfall simulation data of each observation station in a specified time dimension within a preset time length by using the model optimal parameter corresponding to each observation station. By providing a general rainfall simulation model and an optimal solution mode for regions with different rainfall characteristics, different sites can generate corresponding rainfall simulation data based on model optimal parameters obtained by general solution, and the generation efficiency is improved while the accuracy of the simulation data is ensured.

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.

This application discloses a method, device, and medium for simulating two-dimensional floods caused by continuous dam failures in cascade reservoirs. The method relates to the technical fields of hydrodynamic modeling and flood disaster simulation. The method includes: Based on data related to the cascade reservoirs, without considering the regulating and storage function of the interval reservoirs and the impact of continuous dam failures, comprehensively modeling the cascade reservoirs to obtain a comprehensive two-dimensional hydrodynamic model and a maximum inundation range; segmenting the cascade reservoirs step by step according to the number of reservoirs, and performing two-dimensional modeling on the reservoirs in each segment to obtain a segmented two-dimensional model; during the step-by-step simulation, based on the dam failure rules of the reservoirs in each segment, using the comprehensive two-dimensional hydrodynamic model or the segmented two-dimensional model to simulate and obtain inundation results for each segmented two-dimensional model; and finally, overlaying the maximum inundation range and inundation results to generate a cascade reservoir dam failure flood risk map. This application can improve the computational efficiency and accuracy of continuous dam failure simulation analysis for cascade reservoirs.

The invention discloses a static water pushing fish egg hatching device which comprises a hatching tank, a hatching net cage and a driving mechanism. Water is contained in the hatching tank; the hatching net cage is arranged in water in the hatching tank, and the inside of the hatching net cage is used for accommodating roes; and the driving mechanism is used for driving the hatching net cage to reciprocate in the hatching tank. In the roe hatching process, roes are placed in the hatching net cage, the hatching net cage is placed in water in the hatching tank, the hatching net cage is driven to move back and forth in the water, the effect of static water pushing and water flow simulation is achieved, the roes are embraced by a mother body, damage to the roes is small, the oxygenation effect is good, a proper environment is achieved, and the breeding efficiency is improved. Therefore, the hatching rate of roes can be improved.