Application of multigrid method in dynamic simulation of HTR 10 core
Feng Yuankun · Journal of Tsinghua University(Science and Technology) · 1998
The dynamic simulation of HTR 10 core is studied. HTR 10 core's model equation is a typical non stationary compressible Navier Stokes equation set. The paper uses multigrid SIMPLEC algorithm to solve the Navier Stokes equation set, and discusses the multigrid method's basic idea and solving steps in detail. This paper takes three steps to overcome multigrid method's difficulty in dynamic simulation. The simulation results indicate that the convergence rate of the multigrid method is 6 times faster than that of the single grid method, and the computation of time reduces to one half. Therefore, the multigrid SIMPLEC algorithm gives potentiality of fast dynamic simulation of HTR 10 core and it satisfies the demand of analysis and design of control system.