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| 螺桨滑流对全机绕流干扰的数值计算 | |
| 引用本文： | 鄂秦,杨国伟,李凤蔚,何植岱,傅大卫. 螺桨滑流对全机绕流干扰的数值计算[J]. 航空学报, 1996, 17(4): 439-442 |
| 作者姓名： | 鄂秦 杨国伟 李凤蔚 何植岱 傅大卫 |
| 作者单位： | 西北工业大学空气动力学研究室!西安，710072，西北工业大学空气动力学研究室!西安，710072，西北工业大学空气动力学研究室!西安，710072，西北工业大学空气动力学研究室!西安，710072，西安飞机设计研究所!西安，710089 |
| 摘 要： | 数值计算采用面元法。在桨叶及全机面元的控制点上强加 Neumann条件以实现滑流与全机流场的相互耦合。计算中考虑了三维螺桨滑流的收缩及其对流场的影响。最后对运七全机气动力作了计算。结果表明 ,滑流对全机放襟翼状态升力特性有明显影响 ,使全机力矩特性产生较大变化。计算结果与实验值吻合良好。该方法对单发或多发螺桨飞机均适用 |
| 收稿时间： | 1994-07-25; |
NUMERICAL CALCULATION OF INTERACTION OF PROPELLER SLIPSTREAM ON FLOWFIELD OVER A COMPLETE AIRCRAFT |
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| E Qin,Yang Guowei,Li Fengwei,He Zhidai. NUMERICAL CALCULATION OF INTERACTION OF PROPELLER SLIPSTREAM ON FLOWFIELD OVER A COMPLETE AIRCRAFT[J]. Acta Aeronautica et Astronautica Sinica, 1996, 17(4): 439-442 | |
| Authors: | E Qin Yang Guowei Li Fengwei He Zhidai |
| Affiliation: | 1. Research Institute of Aerodynamics, Northwestern Polytechnical University,Xi’an,710072;2. Xi’an Aircraft Research Institute, Xi’an,710089 |
| Abstract: | A lifting surface analysis of vortex lattice method is completed. The coupling between the slipstream and the flow over the aircraft is obtained by using the Von Neumann condition at each control point of the aircraft and propeller panels. The slipstream contraction which definitely exists behind the propeller has been accounted. Practical computations for Y|7 aircraft with double propellers show that the influences of the slipstream on the lift characteristics with deflected flaps and on the pitching moment coefficient of the complete aircraft are quite obvious. The computation results are in good agreement with experiment data. This method can also be applied to multi and single propeller aircraft. |
| Keywords: | propeller slipstreams aerodynamic interference panel method (fluid dynamics) |
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