Three-Dimensional Parallel Simulation of Formation of Spinning Detonation in a Narrow Square Tube
HUANG Yue1,3, JI Hua2, LIEN Fue-Sang3, TANG Hao1**
1College of Energy & Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016 2Waterloo CFD Engineering Consulting Inc., Waterloo, Ontario N2T 2N7, Canada 3Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
Abstract：Four different formation processes of spinning detonation in a narrow square tube are investigated by three-dimensional parallel simulations. High-resolution simulations are performed with a Riemann solver of the HLLC-type, high-order, parallel AMR reactive flow code. The simulations clearly show that the detonation structure transforms from rectangular and diagonal modes into spinning mode respectively during the propagation processes. Transverse wave dynamic and periodic oscillation of the front plays a significant role in the spinning detonations' formation.
2012, Vol. 29 
