Volume 32 Issue 05
May  2006
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Wang Xiaolu, Zhu Ziqiang, Liu Zhou, et al. Bi-point/bi-objective optimization design of ailfoil using N-S equations[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(05): 503-507. (in Chinese)
Citation: Wang Xiaolu, Zhu Ziqiang, Liu Zhou, et al. Bi-point/bi-objective optimization design of ailfoil using N-S equations[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(05): 503-507. (in Chinese)

Bi-point/bi-objective optimization design of ailfoil using N-S equations

  • Received Date: 23 May 2005
  • Publish Date: 31 May 2006
  • Based on the computation of N-S equations and the technique of wake integration method, the sharp of the airfoil was paramerically modeled, the bi-point(BP)/bi-objective(BO) optimization design of ailfoil was discussed with the comparison of single-point(SP)/single-objective(SO) and single-point(SP)/bi-objective(BO) optimization. Powell method and objective function combination method was integrated. Numerical results of given airfoils(RAE2822 and quasi-global hawk ailfoils) cases show that the BP/BO design method is compatible and effective for multiform design status and it is necessary and important to choose the objective function in the optimization method. The BP/BO optimal ailfoils have better pressure distribution to the original ones, which leads to higher coefficient of lift and lower coefficient of drag, thus results in better integral performance.The BP/BO optimal airfoils also have better integral performance to the SP/SO and the SP/BO ones.

     

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