| Citation: | HAN Feng, ZHANG Shuhao, CHEN Jiaona, et al. Effect of crossflow on internal heat transfer of impingement-swirl-film cooling for leading edge of turbine blade[J]. Journal of Aerospace Power, 2025, 40（4）：20240415 doi: 10.13224/j.cnki.jasp.20240415
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The asymmetric impingement-swirl-film cooling channel of a realistic turbine blade leading edge was studied. Under two conditions—constant impingement inlet Reynolds number and constant total flow rate, the effect of active crossflow on the heat transfer performance of the cooling channel was numerically investigated by varying the crossflow ratio. Dimensionless Nusselt number correlations at both operating conditions were derived through curve fitting. The results indicated that, under a constant Reynolds number of the impingement inlet, increasing the crossflow ratio enhanced the overall heat transfer performance of the impingement target surface. Specifically, when the Reynolds number was
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