Design and development of dynamic parallel computing code for three-dimensional gaseous detonation

In numerical simulation of three-dimensional gaseous detonation, a large number of grids resulting from relative mesh resolution and large-scale computing domain consume tremendous computing resources, which brings a great challenge for the numerical simulation. Based on MPI parallel mode, this paper uses 5-th order WENO scheme to discrete partial differential term of the governing equations with chemical reaction, and develops high-resolution dynamic parallel code. Then it is used to simulate the propagation of detonation in square tube with obstacle. The numerical results show that high-resolution dynamic parallel code can effectively simulate the propagation of 3-D gas detonation in large-scale tube. It not only improves the computational efficiency but also the resolution of the detonation wave front. Compared with static parallel mode, high-resolution dynamic parallel code saves communication time of data in interface, and further enhances the computational efficiency. So, it is an effectively means to explore new physical mechanism of 3-D gaseous detonation.