Paper Title:
Noise Prediction for Multi-Element Airfoil Based on FW-H Equation
  Abstract

In this article, four observation points are selected in the flow field when predicting aerodynamic noise of a multi-element airfoil for both a coarser grid and a finer grid. Numerical simulation of N-S equations is employed to obtain near-field acoustic information, then far-field acoustic information is obtained through acoustic analogy theory combined with FW-H equation. Computation indicates: the codes calculate the flow field in good agreement with the experimental data; The finer the grid is, the more stable the calculated sound pressure level (SPL) is and the more regularly d(SPL)/d(St) varies.

  Info
Periodical
Edited by
Zhou Mark
Pages
1388-1393
DOI
10.4028/www.scientific.net/AMM.52-54.1388
Citation
J. Tao, G. Sun, Y. Hu, M. Zhang, "Noise Prediction for Multi-Element Airfoil Based on FW-H Equation", Applied Mechanics and Materials, Vols. 52-54, pp. 1388-1393, 2011
Online since
March 2011
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