Nummerical Simulation in Influence of Forward-Facing Cavity on Aerodynamic Heating of Hypersonic Vehicle

A CFD study on the effect of forward-facing cavity upon aerodynamic heating on the hypersonic vehicle nose is conducted, by means of which the flow field parameters, heat flux distribution along outer body surface are obtained. The numerical simulation result is validated by experiment and the cooling effect of the forward-facing cavity with different dimension is analyzed. The CFD results shows that the forward-facing cavity configuration dose well in cooling the nose of hypersonic vehicle especially at the stagnation point area. The deeper the cavity is, the smaller the heat flux is. The maximal heat flux along the outer body surface dose not locates at the peak of the sharp lip, but after it, and the length of the cavity (L) has little effect on the location of the maximal heat flux. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Harbin University of Science and Technology