The Compution And Analysis On The Chemical Non-Equilibrium Flow Field Of The Bait With Jet

The study of non-equilibrium flow field characteristic to the bait with cascade is important,the exact parameter of target flow field and current illumination characteristic is the basis for missile penetration design。In this article, problem of target flow field and current illumination characteristic of the bait with cascade is studied。With the anatomizing of the target flow field characteristic of the bait with cascade and the using of concentration and orthogonalization method, computational grid of the three dimensional flow field of bait with cascade is formed。The time-dependent method is used to solve the problem of the interfere flow field of the jet flow and exterior flow. The WNND scheme is used to discrete the three dimensional conservation N-S equations. The axial symmetry flow field of perfect gas flow is studied. For axial symmetry flow and three dimensional flow, the interfere flow fields between jet exhaust gas flow and exterior air flow are studied. The effect of the chemical reaction to shock layer and boundary layer is analyzed, the effect of the surface catalyze condition to electron consistence peak value is analyzed, the effect of the jet diameter and jet pressure to shock structure of the base and wake area is analyzed.