| Citation: | ZHAO Jiahui, YANG Shunhua, YOU Jin, et al. Study on flowfield for mode transition of over-under type inlet with double flow path[J]. Journal of Aerospace Power, 2023, 38（1）：173-183 doi: 10.13224/j.cnki.jasp.20220519
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Numerical simulation model was used to study the influence of the height of splitter plate on the backpressure resistance capacity of low speed passage and the coupled aerodynamic characteristics of high/low speed passage, of which the model was validated by dynamic mesh calculation. It was found that with the increase of backpressure, the terminal shock was put out of the low speed passage and oscillated periodically in the throat. In the meantime, the frequency of oscillation decreased with adding backpressure. When the backpressure reached a specific value, the inlet failed to start. Besides, it became more difficult for inlet to work when the low speed passage was further closed as its resistance to backpressure reduced.
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