| Citation: | QIU Yuchen, LI Bo, XU Meng, et al. Numerical simulation of rain ingestion characteristics of bifurcated intake[J]. Journal of Aerospace Power, 2025, 40（4）：20220789 doi: 10.13224/j.cnki.jasp.20220789
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A bifurcated intake with a bypass channel was used to study the rainwater ingestion characteristics of different rainwater contents and different incoming velocities by means of numerical simulation method. The results showed that the rain ingestion increased the distortion index of the intake; the rain droplet separation efficiency decreased with the increase of the rain droplet particle size in the case of uniform rain droplet particle size. The effect of raindrop size change on the total pressure recovery coefficient of the flow field was not significant, with the increase of raindrop size, the total pressure distortion index of the flow field increased first and then decreased; the incoming velocity and the low velocity region in the flow field jointly affected the raindrop trajectories. The larger incoming velocity indicated the more rain discharged in the side channel, but the rain ingestion in the main channel showed a decreasing-increasing-decreasing trend with the increase of the incoming velocity.
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