| 直升机实用涡环状态边界的确定 |
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| 引用本文： | 陆洋,高正.直升机实用涡环状态边界的确定[J].南京航空航天大学学报(英文版),2003,20(1):6-11. |
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| 作者姓名： | 陆洋 高正 |
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| 作者单位： | 南京航空航天大学直升机技术研究所,南京,210016,中国 |
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| 摘 要： | 通过模型旋翼试验得到了合理的直升机涡环边界判据，并由此计算得到了直升机通用涡环状态边界。为验证该边界，进行了试飞验证工作，并得到了一些新的结论。综合试验研究、理论研究和试飞结果，提出了直升机下降飞行的“两线三区”的概念，便直升机涡环边界图更加合理，更为实用。
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| 关 键 词： | 直升机 涡环状态边界 模型试验 飞行试验 旋翼试验 |
RACTICAL BOUNDARY IN HELICOPTER VORTEX-RING STATE |
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| LU Yang,GAO Zheng.RACTICAL BOUNDARY IN HELICOPTER VORTEX-RING STATE[J].Transactions of Nanjing University of Aeronautics & Astronautics,2003,20(1):6-11. |
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| Authors: | LU Yang GAO Zheng |
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| Abstract: | A reasonable criterion of vortex ring state boundary for helicopter is acquired based on model rotor tes ts. According to this criterion a non dimensional vortex ring state boundary i s presented for general application. To validate the boundary, flight tests are carried out and some new conclusions are drawn. Combined theoretical and experi ment al research with the flight test results, the concept of two curves & three reg ions is brought out, which makes the chart of vortex ring boundary more reasona ble and practical. |
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| Keywords: | helicopters rotors vo rtex ring vortex ring state boundary model test flight test |
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