Effect of different flare size of hypersonic cone cylinder flare configuration on the interaction of trajectory controlled jet

DOI:	10.11809/bqzbgcxb2023.11.023
Keywords:	hypersonic flow; RCS jet; trajectory control; wind tunnel experiment; numerical simulation
Abstract:	The effect of different size flare on lateral interaction of trajectory controlled jet in cone cylinder flare configuration is studied by solving three dimensional RANS equation. The numerical methods are compared and verified by the results of the wind tunnel experiment of the trajectory controlled jet interaction in hypersonic flows. The flow field of trajectory controlled jet with different flare length and bottom diameter in hypersonic flow is simulated numerically, and the wall pressure distribution, force interaction factor and the shift of jet force center results under different flare skirt sizes are compared. The results show that the flare size has a significant effect on the jet additional interaction effect. Under the condition of the same flare length, with the increase of the bottom diameter of the flare, the force interference factor decreases and the shift of jet force center increases. The influence of flare bottom diameter on the force interference factor and the shift of jet force center become more obvious with the increase of negative angle of attack, but the influence is small under the condition of positive angle of attack. At the same flare bottom diameter, the change of the force interaction factor and the shift of jet force center with tail skirt angel are affected by the angle of attack.
Issue:	Vol. 44 No. 11 (2023)
Published:	2023-11-28
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