Three-dimensional simulation of detonation waves

摘要：

Detonation waves in rectangular ducts are simulated with a fifth-order WENO (Weighted Essentially NonOscillatory) scheme and a 3rd order TVD Rouge-Kutta method. The simulation shows that under an initial disturbance, the detonation front finally develops to an unsteady three- dimensional distorted pattern. After sufficiently developing time, the detonation front becomes a quasi-steady periodic motion. For the wide duct, the ow front shows a quasi-steady “rectangular mode periodically, with the front assuming variation of “convex and “concave shapes continuously. It is shown that the detonation mechanism depends on the coupling between the pressure and the velocity. The transverse wave plays an important role by facilitating this coupling via collisions.

关键词： detonation three-dimensional simulation weno mechanism cell pattern

作者: H.S.Dou B.C.Khoo H.M.Tsai

作者单位: Temasek Laboratories, National University of Singapore, Singapore 117508 Department of Mechanical Engineering, National University of Singapore, Singapore 119260

会议类型: 国际会议

会议名称: The Fifth International Conference on Fluid Mechanics(第五届国际流体力学会议)

会议地点: 上海

会议语种:英文

在线出版日期: 2007-08-15（万方平台首次上网日期，不代表论文的发表时间）