Numerical simulation of 2D radiation-driven implosion process

The two-dimensional(2D) three-temperature radiation hydrodynamics code, LARED-H(laser radiation electron dynamic hohlraum), is improved to simulate the 2D radiation-driven implosion process. In order to solve the linear-algebraic equations discretized from the two-dimensional and three-temperature energy equations by a nine point scheme, the efficient solver of Krylov method is used for improving the iterative capability. The numerical result comparison with 1D CFJ code shows the accuracy of the LARED-H code. Finally, the compressed shapes of the capsule driven by a radiation field in cylindrical gold hohlraums with different length are simulated by the LARED-H code. The shape of the fuel becomes sausage-like, ball-like or cake-like, respectively with the different hohlraum length, which a