Volume 31 Issue 1
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YE Liang, ZHANG Ying, ZHU Xing-lin, YANG Shuo. Numerical study on the influence of some factors on results accuracy in rotor aerodynamic simulation[J]. Journal of Aerospace Power, 2016, 31(1): 136-142. doi: 10.13224/j.cnki.jasp.2016.01.018
Citation: YE Liang, ZHANG Ying, ZHU Xing-lin, YANG Shuo. Numerical study on the influence of some factors on results accuracy in rotor aerodynamic simulation[J]. Journal of Aerospace Power, 2016, 31(1): 136-142. doi: 10.13224/j.cnki.jasp.2016.01.018
shu

Numerical study on the influence of some factors on results accuracy in rotor aerodynamic simulation

doi: 10.13224/j.cnki.jasp.2016.01.018

  • Aviation Key Laboratory of Science and Technology on Aerodynamics of High Speed and High Reynolds Number, AVIC Aerodynamics Research Institute, Aviation Industry Corporation of China, Shenyang 110034, China

  • Received Date: 2014-05-30
  • Publish Date: 2016-01-28
    Abstract
  • Numerical analysis for evaluating the effect of some common factors on rotor aerodynamics was conducted with an in-house CFD solver, in which a second-order upwind finite-volume and dual time-stepping scheme were used for Navier-Stokes equations discretization under an embedded grid system; and the numerical process was accelerated by OMP parallel technique.The involved problems mainly include the effect of background grid points scale on tip-vortex capture in hover, shock wave in forward flight and blade force, and the differences between the aerodynamics results obtained with/without 1D momentum far field boundary condition.The calculated rotor lift and torque discrepancy in hover are approximately 6% and 2.6% with different background grid points, and the drag and torque discrepancy in forward flight are 2.58% and 3.28% separately. The lift results show about 3%-5% difference with and without 1D momentum far field boundary condition correction.The fluctuation range of rotor aerodynamics with above-mentioned parameters was given by calculation, providing useful reference in rotor aerodynamics simulation.

     

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