基于最佳环量分布的螺旋桨滑流影响预测

doi:10.13675/j.cnki. tjjs. 006

推进技术 ›› 2019, Vol. 40 ›› Issue (12): 2694-2701.DOI: 10.13675/j.cnki. tjjs. 006

基于最佳环量分布的螺旋桨滑流影响预测

廖鹏^1,2,姚磊江¹

1.西北工业大学无人机特种技术重点实验室;2.西北工业大学;航空学院，陕西西安;710072

发布日期:2021-08-15
基金资助:
无人机特种技术重点实验室基金 61423010401162301001无人机特种技术重点实验室基金（61423010401162301001）。

Prediction of Propeller Slipstream Influence Basedon Optimal Circulation Distribution

1.Laboratory of Science and Technology on UAV,Northwestern Polytechnical University,Xi’an 70072,China;2.School of Aeronautics,Northwestern Polytechnical University,Xi’an 71007,China

Published:2021-08-15

摘要/Abstract

摘要： 为了更加快速且准确地预测螺旋桨滑流对机翼气动系数的影响，提出了基于最佳环量分布并结合激励盘数值模拟技术实现螺旋桨滑流影响预测的方法，选择Prandtl最佳环量分布解析法并在此基础上提出了一种桨毂修正办法，从而得到桨盘的最佳环量分布解析式。将采用不同方法计算螺旋桨压力阶跃分布作为激励盘模型的边界条件，采用CFD数值模拟得到了一种典型的桨-翼组合体的气动参数。结果表明，本文提出的修正方法预测结果更接近于试验数据，升力系数的相对误差不超过3%，阻力系数的相对误差不超过20%。这种方法具有不依赖试验数据、低计算资源消耗的优势，对飞机概念设计初期快速确定螺旋桨滑流对机翼气动系数的影响方面具有优势。

关键词: 螺旋桨滑流;气动系数;最佳环量分布;桨毂修正;预测

Abstract: In order to predict the effects of propeller slipstream on the aerodynamic coefficient of wing more quickly and accurately, a method combining the optimal circulation distribution and the actuator disk numerical simulation is proposed. The Prandtl’s optimal circulation distribution analysis method is modified to take into account the effect of the propeller hub. Using the pressure step distribution obtained by different models as the boundary condition of the actuator disk model, the aerodynamic coefficients of a typical propeller-wing combination is calculated by computational fluid mechanics (CFD) method. The results show that the aerodynamic coefficients derived by present modified model are closer to the experimental results than the un-modified or previous models, the relative error of lift coefficient does not exceed 3% and the relative error of drag coefficient does not exceed 20%. And the present method is time saving and independent on the experimental data, it is advantageous to determine the effect of propeller slipstream on the aerodynamic coefficients of the wing in the early stage of aircraft conceptual design.

Key words: Propeller slipstream;Aerodynamic coefficient;Optimal circulation distribution;Propeller hub correction;Prediction

廖鹏,姚磊江. 基于最佳环量分布的螺旋桨滑流影响预测[J]. 推进技术, 2019, 40(12): 2694-2701.

LIAO Peng^1,2,YAO Lei-jiang¹. Prediction of Propeller Slipstream Influence Basedon Optimal Circulation Distribution[J]. Journal of Propulsion Technology, 2019, 40(12): 2694-2701.

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基于最佳环量分布的螺旋桨滑流影响预测

Prediction of Propeller Slipstream Influence Basedon Optimal Circulation Distribution

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