| Citation: | WEN Qing, CHENG Zhihang, QIU Yasong, et al. Simulation of the effect of propeller slipstream on blowing control of flap[J]. Journal of Aerospace Power, 2023, 38（5）：1123-1132 doi: 10.13224/j.cnki.jasp.20210294
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Numerical simulation method was used to simulate the aerodynamic characteristics of the entire aircraft with propeller slip flow in the internally blown boundary layer control scheme (inflation flaps), and compare them with the wind tunnel test results. The four propeller regions were divided into meshes separately, and data were transferred between each domain through surface overlapping mesh. Using the quasi-steady method based on multiple reference coordinate systems and the unsteady method of real rotation of the propeller, the lift-drag characteristics were calculated and compared with the wind tunnel test results. The results showed that the quasi-steady method can roughly capture the development trend of the lift characteristic curve, but the calculated specific value of the lift coefficient at a fixed angle of attack was far from the wind tunnel test results, and the stall angle of attack captured by this method was generally smaller than the test results, showing a large gap in resistance characteristics; the unsteady method can more accurately capture the development trend of the lift characteristic curve, and the specific value of the lift coefficient under the stall angle of attack and the fixed angle of attack was also more accurate, and the average drag error was controlled within 15%.
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