Simulation method of three-dimensional electromagnetic heat effect based on regional decomposition method

Abstract

The invention discloses a simulation method of a three-dimensional electromagnetic heat effect based on a regional decomposition method, which comprises the following steps: firstly, establishing a simulation model for a target structure, dividing the simulation model into a plurality of complementary overlapped sub-regions, and then performing grid dispersion; secondly, establishing an electric field control equation set of the sub-regions based on the time-coordinated electromagnetic field characteristics, introducing continuity conditions and electric field Lagrangian multipliers on interfaces of the sub-regions, and obtaining electric field distribution conditions of the sub-regions by solving the electric field Lagrangian multipliers; wherein ohmic loss of a consumed medium in each sub-region is taken as a heat source of excitation heat, a convection boundary condition is adopted in each sub-region for truncation; determining a thermal control equation based on a heat conduction characteristic, and meanwhile, introducing a thermal field transmission condition and a thermal field Lagrangian multiplier into an interface of each sub-region; and finally, introducing a thermal field Dirichlet pre-condition technology, accelerating the iterative solution of the thermal field Lagrangian multiplier, and obtaining the thermal field distribution condition in each sub-region. The method is wide in application range, high in convergence speed and high in solving precision.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional electromagnetic field, and in particular refers to the simulation operation of the thermal effect of the three-dimensional electromagnetic field through the regional decomposition method, and specifically relates to a simulation method of the three-dimensional electromagnetic thermal effect based on the regional decomposition method. Background technique [0002] With the rapid development of science and technology, computer performance has been continuously improved, memory capacity has been continuously expanded, and operating speed has been continuously improved. These advantages provide the necessary conditions for the development of computing science. On the other hand, with the continuous optimization of calculation methods, it is possible to analyze and solve general electromagnetic problems on a single computer using traditional numerical methods. However, in the face of increasi...

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Problems solved by technology

In order to solve the problems of low efficiency, occupied technology and large memory, the present invention provides a simulation method of three-dimensional electromagnetic thermal effect based on the area decomposition method. Accurate and efficient simulation of the electromagnetic heating effect of the model; the specific technical solutions are as follows:

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