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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1996, Vol. 17 ›› Issue (2): 213-217.

• 论文 • Previous Articles     Next Articles

FREE-WAKW CALCULATION OF HELICOPTER ROTOR BLADES

Liu Xiangjian, Shen Xinkang, Xue Zhengzhong   

  1. Chinese Helicopter Research and Development Institute,Jingdezhen,333001
  • Received:1994-07-26 Revised:1994-11-15 Online:1996-04-25 Published:1996-04-25

Abstract: Coordinate of circulation and wake of helicopter blades are iterated step by step with the method of time history in the theory of free vortices. Each azimuth is re iterated until its wake is stable and its induced down wash flow is obtained. The down wash flow calculated in an example of a certain helicopter can be used for aerodynamic load calculation of blades. The calculated results coincide well with the test data.

Key words: wakes, rotoraer odynamics, iteration, circulation distribution

CLC Number: