| 风挡串流对测力数据的影响及其改进措施 |
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| 引用本文： | 周仁良.风挡串流对测力数据的影响及其改进措施[J].实验流体力学,1991(4). |
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| 作者姓名： | 周仁良 |
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| 作者单位： | 南京航空学院 |
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| 摘 要： | 本文研究了风挡串流对三角形机翼飞机模型测力数据的影响。试验结果指出,在风挡具有串流的情况下,正反装模型所获得的纵向测力数据都是错误的,特別是俯仰力矩。为了消除风挡串流对测力数据的影响,应尽力限制串流量,此外建议在测定模型的平均气流偏角和支架干扰量时,上风挡亦带串流,并使其对称于下风挡的串流。经试验证明,这些措施将有助于获得较为可靠的正反装测力数据。
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| 关 键 词： | 风挡串流 测力数据 风洞试验 |
THE EFFECT OF WINDSHIELD BLEEDING ON FORCES OF AIRPLANE MODEL AND IMPROVING METHOD |
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| Zhou Renliang.THE EFFECT OF WINDSHIELD BLEEDING ON FORCES OF AIRPLANE MODEL AND IMPROVING METHOD[J].Experiments and Measur in Fluid Mechanics,1991(4). |
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| Authors: | Zhou Renliang |
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| Institution: | Nanjing Aeronautical Institute |
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| Abstract: | The effect of windshield bleeding on forces of airplanemodel with delta wing is evaluated in this paper.The results of testindicated that in the cause of considerable bleeding through down wind-shield,the longitudinal forces especially the pitching moment of modelin normal and inverted position are wrong.In order to eliminate theinference of bleeding,the bleeding must be limited and an improvingmethod is proposed that cause the upper windshield with the samebleeding as the down windshield to determine the mean flow angle andsupports interference.It is available to obtain correct force data of themodel in both position. |
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| Keywords: | windshield bleeding Aerodynamic data wind tunnel test |
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