Simulation system and method for water logging in building

Abstract

The invention provides a simulation system and method for water logging in a building. The method comprises the following steps: firstly, carrying out a typical situation physical model test accordingto research conditions; modeling a hydrodynamic mathematical model based on an SPH method, and carrying out calibration and verification on the hydrodynamic mathematical model by adopting a physicalmodel test result; carrying out water logging event numerical simulation calculation by adopting the verified mathematical model; and analyzing and processing a numerical calculation result to obtaina water logging characteristic and a water body movement process three-dimensional demonstration animation. The water logging three-dimensional dynamic process is simulated through the gridless smoothparticle dynamics method, the method is suitable for calculating the large deformation problem of the liquid level, and the defect that distortion is likely to be generated when the gridding method tracks the free liquid level under the complex conditions of water overturning, crushing and the like is overcome. The nuclear island plant building is complex in structure and large in calculation amount, the method solves the problem of calculation efficiency through parallel calculation, and accurate calculation of water logging in the nuclear island plant building is achieved.

Description

technical field [0001] The invention belongs to the design technology of a nuclear island powerhouse of a nuclear power plant, in particular to a system and method for simulating water flooding inside a building for the nuclear island powerhouse. Background technique [0002] Flooding inside the nuclear island is a common mode failure of systems and equipment, and the design of nuclear power plants must take this potential hazard into consideration. Including the internal flooding caused by external flooding in the Fukushima incident has also attracted the attention of the National Nuclear Safety Administration and industry experts. Taking the M310 main reactor currently in service in my country as an example, although its internal flooding protection design has been analyzed from the perspective of determinism, it lacks the analysis of the water spreading path in the building after flooding and the flooding height. Therefore, it is necessary to test and verify the accuracy...

AI Technical Summary

Problems solved by technology

Taking the M310 main reactor type currently in service in my country as an example, although its internal flooding protection design has been analyzed from the perspective of determinism, it lacks the analysis of the water spreading path in the building after flooding and the flooding height.

Images