Abstract
The incident shock wave has a great impact on the transverse injection flow field in supersonic flows, and it can improve the mixing efficiency between the incoming flow and the fuel. In the current study, the interaction between the incident shock wave and the transverse slot injection has been investigated numerically, and the influences of the size and the location of the ramp on the wall pressure profiles in the transverse slot injection flow field have been performed. Additionally, the swept angle of the ramp is set to be 15.784°, 28.158° and 35.974°, respectively. The obtained results show that the size of the ramp has a great impact on the transverse injection flow field, and the shock wave formed upstream of the injection slot moves towards the entrance of the channel with the increase of the swept angle of the ramp and the jet-to-crossflow pressure ratio. The transverse injection flow field is disturbed when the incident shock wave formed at the leading edge of the ramp is strong enough, and the separation regions both upstream and downstream of the injection slot increase with the increase of the intensity of the incident shock wave. The incident shock wave has a large impact on the mixing improvement between the incoming supersonic flow and the fuel.
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