CN-121981404-A - Asynchronous coupling method, device and equipment for two-dimensional hydrodynamic rain Hong Moxing

CN121981404ACN 121981404 ACN121981404 ACN 121981404ACN-121981404-A

Abstract

The invention provides a two-dimensional hydrodynamic rain Hong Moxing asynchronous coupling method, a device and equipment, and relates to the technical field of hydrodynamic simulation. The method comprises the steps of obtaining coupling data of a current synchronous period, carrying out total interaction water quantity analysis of the current synchronous period based on the coupling data of the current synchronous period, independently simulating a one-dimensional model and a two-dimensional model to obtain a coupling result of the current synchronous period, determining coupling data of a next synchronous period based on the coupling result of the current synchronous period, repeatedly executing the coupling data based on the next synchronous period, carrying out total interaction water quantity analysis, independently simulating the one-dimensional model and the two-dimensional model, integrating the coupling results of all synchronous periods when simulation conditions are met to obtain an overall coupling result, and carrying out urban waterlogging evolution process analysis based on the overall coupling result. The invention can improve hydrodynamic coupling simulation efficiency.

Inventors

WANG ZHENGFA
LI DONGLAI
LV JIAHAO
XU YU
LI LEI
XU HAO
WANG QING
XUE SHUHONG
LI FEI
PING YANG
ZHANG ZHENZHOU
WANG ZIYI
HOU JINGMING

Assignees

中电建生态环境集团有限公司

Dates

Publication Date: 20260505
Application Date: 20260407

Claims (10)

1. An asynchronous coupling method of a two-dimensional hydrodynamic rain Hong Moxing, comprising: Acquiring coupling data of a current synchronization period, wherein the coupling data comprises reference water level data of a one-dimensional model and initial water level data of grids corresponding to the two-dimensional model; Based on the coupling data of the current synchronization period, carrying out total interaction water content analysis of the current synchronization period and independent simulation of a one-dimensional model and a two-dimensional model to obtain a coupling result of the current synchronization period; Determining coupling data of the next synchronization period based on the coupling result of the current synchronization period; repeating the steps of performing total interactive water analysis and independent simulation of the one-dimensional model and the two-dimensional model based on the coupling data of the next synchronization period; When the simulation conditions are met, integrating the coupling results of all the synchronous periods to obtain an overall coupling result; and analyzing the urban waterlogging evolution process based on the integral coupling result.
2. The two-dimensional hydrodynamic rain Hong Moxing asynchronous coupling method according to claim 1, wherein the performing the total interactive water analysis of the current synchronization period and the independent simulation of the one-dimensional model and the two-dimensional model based on the coupling data of the current synchronization period to obtain the coupling result of the current synchronization period includes: Calculating to obtain the interactive water quantity corresponding to each first step length in the current synchronization period based on the reference water level data in the coupling data of the current synchronization period and the initial water level data of each grid; accumulating and calculating the interactive water quantity corresponding to each first step length to obtain the total interactive water quantity between the one-dimensional model and the two-dimensional model in the current synchronous period; based on the total interactive water quantity, independently carrying out hydrodynamic simulation analysis of a one-dimensional model to obtain hydrodynamic force change process data in a current synchronous period; And based on the total interactive water quantity, independently performing surface flooding simulation analysis of the two-dimensional model to obtain surface flooding process data in the current synchronous period.
3. The two-dimensional hydrodynamic rain Hong Moxing asynchronous coupling method according to claim 2, wherein the one-dimensional model is a one-dimensional pipe network model or a one-dimensional river network model; the calculating, based on the reference water level data in the coupling data of the current synchronization period and the initial water level data of each grid, the interactive water quantity corresponding to each first step length in the current synchronization period includes: if the one-dimensional model is a one-dimensional river network model, taking the river channel inner water level at the boundary of the burst opening as the reference water level of the one-dimensional model, and taking the river channel outer water level at the boundary of the burst opening as the initial water level of each grid of the two-dimensional model; determining a current water flow movement state based on the river channel inner water level at the boundary of the burst opening, the river channel outer water level and the elevation of the embankment at the burst opening in each first step length; and combining the current water flow motion state, and calculating to obtain the interactive water quantity corresponding to each first step length in the current synchronous period.
4. The two-dimensional hydrodynamic rain Hong Moxing asynchronous coupling method according to claim 3, wherein in each first step, determining the current water flow movement state based on the river channel internal water level at the burst boundary, the river channel external water level, and the elevation of the dike at the burst comprises: determining a height relation result based on the river channel inner water level, the river channel outer water level and the embankment elevation at the breach in each first step length; Determining the current water flow movement state according to the height relation result; When the height relation result is that the water level in the river is higher than the elevation of the embankment at the position of the breach and the water level outside the river is lower than the elevation of the embankment at the position of the breach, judging that the current water flow movement state is a free outflow state; And when the height relation result is that the water level in the river and the water level outside the river are higher than the elevation of the embankment at the burst opening, judging that the current water flow movement state is a submerged outflow state.
5. The two-dimensional hydrodynamic rain Hong Moxing asynchronous coupling method according to claim 2, wherein the calculating the interactive water volume corresponding to each first step in the current synchronization period based on the reference water level data in the coupling data of the current synchronization period and the initial water level data of each grid includes: if the one-dimensional model is a one-dimensional pipe network model, taking the water level of the pipeline node as the reference water level of the one-dimensional pipe network model, and taking the water level of the earth surface grid as the initial water level of each grid of the two-dimensional model; And in each first step, calculating the corresponding interactive water quantity between the one-dimensional model and the two-dimensional model in each first step based on the pipeline node water level and the surface grid water level by combining the ground surface elevation, the pipeline node area and the pipeline node perimeter.
6. The two-dimensional hydrodynamic rain Hong Moxing asynchronous coupling method according to claim 2, wherein the hydrodynamic simulation analysis of the one-dimensional model is independently performed based on the total interactive water volume to obtain hydrodynamic variation process data in the current synchronous period, comprising: determining the boundary input flow of the one-dimensional model in the current synchronization period according to the duration of the current synchronization period and the total interactive water quantity, and taking the boundary input flow as an external boundary condition of the one-dimensional model in the current synchronization period; based on the external boundary condition, taking the second step length as a time interval, and independently performing hydrodynamic force calculation of the one-dimensional model to obtain water level data and flow velocity data of the one-dimensional model at the moment corresponding to each second step length; and integrating the water level change sequence and the flow velocity change sequence of the one-dimensional model in the current synchronous period based on the water level data and the flow velocity data of the corresponding moment of each second step length to obtain hydrodynamic force change process data of the one-dimensional model.
7. The two-dimensional hydrodynamic rain Hong Moxing asynchronous coupling method according to claim 2, wherein the surface flooding simulation analysis of the two-dimensional model is independently performed based on the total interactive water volume to obtain surface flooding process data in the current synchronous period, and the method comprises the following steps: according to the total interactive water volume and the water flow direction, updating the initial water level of each grid of the two-dimensional model by combining the area distribution of each grid of the two-dimensional model, and obtaining the initial calculated water level of each grid of the two-dimensional model in the current synchronization period; Taking the first step length as a time interval, starting from the initial moment of the current synchronous period, calculating the water level and the total interactive water quantity according to each grid, and calculating to obtain surface flooding data at the corresponding moment by combining surface topography parameters of a two-dimensional model, wherein the surface flooding data comprises the water accumulation depth, the water flow speed and the water flow direction of each grid of the two-dimensional model; and integrating the earth surface overflow data at each moment in time sequence to obtain earth surface overflow process data.
8. The two-dimensional hydrodynamic rain Hong Moxing asynchronous coupling method according to claim 1, wherein the determining the coupling data of the next synchronization period based on the coupling result of the current synchronization period includes: And taking the water level at the end time of the hydrodynamic force change process of the one-dimensional model in the current synchronization period as the reference water level of the one-dimensional model in the next synchronization period, and taking the water levels of grids at the end time of the earth surface overflow process of the two-dimensional model in the current synchronization period as the initial water levels of grids corresponding to the two-dimensional model in the next synchronization period.
9. A two-dimensional hydrodynamic rain Hong Moxing asynchronous coupling device, comprising: the communication module is used for acquiring coupling data of the current synchronization period, wherein the coupling data comprise reference water level data of a one-dimensional model and initial water level data of grids corresponding to the two-dimensional model; The processing module is used for carrying out total interaction water quantity analysis of the current synchronous period and independent simulation of the one-dimensional model and the two-dimensional model based on the coupling data of the current synchronous period to obtain a coupling result of the current synchronous period, determining coupling data of the next synchronous period based on the coupling result of the current synchronous period, repeatedly executing the steps of carrying out total interaction water quantity analysis based on the coupling data of the next synchronous period and independent simulation of the one-dimensional model and the two-dimensional model, integrating the coupling results of all synchronous periods when simulation conditions are met to obtain an integral coupling result, and carrying out urban waterlogging evolution process analysis based on the integral coupling result.
10. An electronic device comprising a memory storing a computer program and a processor implementing the method of any one of claims 1 to 8 when the computer program is executed by the processor.

Description

Asynchronous coupling method, device and equipment for two-dimensional hydrodynamic rain Hong Moxing Technical Field The invention relates to the technical field of hydrodynamic force simulation, in particular to a two-dimensional hydrodynamic force rain Hong Moxing asynchronous coupling method, a device and equipment. Background At present, the coupling simulation of the traditional two-dimensional hydrodynamic rain and flood model generally adopts a technical route of 'time step by time step synchronous coupling', namely, the water level and flow data interaction between a one-dimensional model and a two-dimensional model is synchronously completed in each simulation time step, and hydrodynamic force calculation of the two models is respectively carried out based on the interaction result. And the one-dimensional model and the two-dimensional model are synchronously coupled in each simulation time step, so that the data interaction operation between the one-dimensional model and the two-dimensional model needs to be repeatedly executed for a plurality of times in one simulation synchronization period. The method has the advantages that a large number of cross-model data transmission, reading and writing and synchronous verification operations are performed, so that the calculation cost in the simulation process is obviously increased, and the overall efficiency of hydrodynamic coupling simulation is reduced. Disclosure of Invention The embodiment of the invention provides a two-dimensional hydrodynamic rain Hong Moxing asynchronous coupling method, a device and equipment, which are used for solving the problem of low simulation efficiency of traditional hydrodynamic coupling. The embodiment of the invention provides a two-dimensional hydrodynamic rain Hong Moxing asynchronous coupling method, which comprises the steps of obtaining coupling data of a current synchronization period, wherein the coupling data comprise reference water level data of a one-dimensional model and grid initial water level data corresponding to a two-dimensional model, carrying out total interaction water quantity analysis of the current synchronization period and independent simulation of the one-dimensional model and the two-dimensional model based on the coupling data of the current synchronization period to obtain a coupling result of the current synchronization period, determining coupling data of a next synchronization period based on the coupling result of the current synchronization period, repeatedly executing the coupling data of the next synchronization period to carry out total interaction water quantity analysis and independent simulation of the one-dimensional model and the two-dimensional model, integrating the coupling results of all synchronization periods to obtain an integral coupling result when simulation conditions are met, and carrying out urban inland inundation evolution process analysis based on the integral coupling result. In a possible implementation manner, based on coupling data of a current synchronization period, total interactive water quantity analysis of the current synchronization period and independent simulation of a one-dimensional model and a two-dimensional model are carried out to obtain a coupling result of the current synchronization period, wherein the method comprises the steps of calculating to obtain interactive water quantity corresponding to each first step length in the current synchronization period based on reference water level data and initial water level data of each grid in the coupling data of the current synchronization period, accumulating the interactive water quantity corresponding to each first step length to obtain the total interactive water quantity between the one-dimensional model and the two-dimensional model in the current synchronization period, independently carrying out hydrodynamic simulation analysis of the one-dimensional model based on the total interactive water quantity to obtain hydrodynamic change process data in the current synchronization period, and independently carrying out surface flooding simulation analysis of the two-dimensional model based on the total interactive water quantity to obtain surface flooding process data in the current synchronization period. In a possible implementation mode, the one-dimensional model is a one-dimensional pipe network model or a one-dimensional river network model, the interactive water quantity corresponding to each first step length in the current synchronous period is calculated based on the datum water level data and the initial water level data of each grid in the coupling data of the current synchronous period, and the interactive water quantity corresponding to each first step length in the current synchronous period is calculated by combining the current water flow movement state if the one-dimensional model is the one-dimensional river network model, the river channel inner water level at the boundary