Volume 30 Issue 10
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ZHAO Jun, LIU Bao-jie. Deterministic stress modelling in transonic compressor based on nonlinear harmonic method[J]. Journal of Aerospace Power, 2015, 30(10): 2440-2449. doi: 10.13224/j.cnki.jasp.2015.10.018
Citation: ZHAO Jun, LIU Bao-jie. Deterministic stress modelling in transonic compressor based on nonlinear harmonic method[J]. Journal of Aerospace Power, 2015, 30(10): 2440-2449. doi: 10.13224/j.cnki.jasp.2015.10.018
shu

Deterministic stress modelling in transonic compressor based on nonlinear harmonic method

doi: 10.13224/j.cnki.jasp.2015.10.018

  • 1. Aviation Engineering Institute, Civil Aviation Flight University of China, Guanghan Sichuan 618307, China;

  • 2. School of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 2014-12-18
  • Publish Date: 2015-10-28
    Abstract
  • Three-dimensional unsteady, nonlinear harmonic method calculation procedures were developed based on three-dimensional Denton steady solver. The high-modeling-precision advantage of nonlinear harmonic method was validated by contrast the deterministic stresses(DS) field solved with unsteady and nonlinear harmonic method for two three-dimensional single-stage and multi-stage transonic compressor simulation cases,and the five sources of modeling error were analyzed. Results show that with the increase of harmonic orders, the value of deterministic stress constantly goes to a limit, presenting the characteristic of “harmonic convergence”. Only first two harmonic components taken into account was the best choice in the simulation cases because of its high benefit-cost ratio.

     

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