Numerical simulation of H2–O2 gaseous detonation on the wedge》.pdfVIP

i n t e r n a t i o n a l j o u r n a l o f h y d r o g e n e n e r g y 4 0 ( 2 0 1 5 ) 1 2 8 9 7 e 1 2 9 0 4 Available online at ScienceDirect journal homepage: /locate/he Numerical simulation of H eO gaseous detonation 2 2 on the wedge * Jianguo Ning, Hui Zhao, Jian Li, Tianbao Ma , Huilan Ren State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China a r t i c l e i n f o a b s t r a c t Article history: 2D cellular reflection processes of detonation waves on different angle wedges were inves- Received 21 March 2015 tigated by using a fifth-order weighted essentially non-oscillatory (WENO) scheme with Accepted 3 July 2015 Additive RungeeKutta(ARK) time step method. A detailed chemical kinetics model was Available online 4 August 2015 adopted to construct the mass fraction of species in a stoichiometric H2eO2 mixture diluted by Argon. It was found that a Mach reflection as well as a regular reflection existed over the Keywords: wedge. The regular cellular detonation wave was disturbed where the Mach reflection oc- Detonation curs, which made the cells become smaller and the shape get distorted. It was shown from Hydrogen the numerical results that when the angle is less than 30 , the trajectory of the triple points Mach reflection