| TUNNEL INTERFERENCE IN UNSTEADY POST-STALL EXPERIMENTS |
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| 作者姓名： | Zhang Wenhua Ding Kewen Huang Da Li Zhiqiang Zhang Qingli |
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| 作者单位： | 6th Dept. Nanjing University of Aeronautics and Astronautics，Nanjing，210016，China |
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| 摘 要： | ＴＵＮＮＥＬＩＮＴＥＲＦＥＲＥＮＣＥＩＮＵＮＳＴＥＡＤＹＰＯＳＴ┐ＳＴＡＬＬＥＸＰＥＲＩＭＥＮＴＳＺｈａｎｇＷｅｎｈｕａ，ＤｉｎｇＫｅｗｅｎ，ＨｕａｎｇＤａ，ＬｉＺｈｉｑｉａｎｇ，ＺｈａｎｇＱｉｎｇｌｉ（６ｔｈＤｅｐｔ．ＮａｎｊｉｎｇＵｎｉｖｅｒｓｉ...
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TUNNEL INTERFERENCE IN UNSTEADY POST STALL EXPERIMENTS |
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| Zhang Wenhua,Ding Kewen,Huang Da,Li Zhiqiang,Zhang Qingli.TUNNEL INTERFERENCE IN UNSTEADY POST-STALL EXPERIMENTS[J].Chinese Journal of Aeronautics,1997(4). |
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| Authors: | Zhang Wenhua Ding Kewen Huang Da Li Zhiqiang Zhang Qingli |
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| Abstract: | The effect of the size of a delta wing relative to that of the test section on the vortex breakdown location over a delta wing oscillating in pitch to very high angles of attack was investigated experimentally using flow visualization. The unsteady wall pressure characteristics such as delay, frequency were analyzed. An unsteady tunnel wall correction, applying influence functions in steady wall pressure correction method and unsteady wall pressure at the optimum points, was presented. Experimental examinations prove that the unsteady tunnel wall correction is desirable. |
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| Keywords: | unsteady flow wind tunnel walls wall pressure interference vortex breakdown |
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