Computing and Visualization in Science

, Volume 3, Issue 1, pp 9–12

On the coupling of Navier–Stokes and linearised Euler equations for aeroacoustic simulation

  • G.S. Djambazov
  • C.-H. Lai
  • K.A. Pericleous
Regular article

DOI: 10.1007/s007910050045

Cite this article as:
Djambazov, G., Lai, CH. & Pericleous, K. Comput Visual Sci (2000) 3: 9. doi:10.1007/s007910050045

Abstract.

Aerodynamic generation of sound is governed by the Navier–Stokes equations while acoustic propagation in a non-uniform medium is effectively described by the linearised Euler equations. Different numerical schemes are required for the efficient solution of these two sets of equations, and therefore, coupling techniques become an essential issue. Two types of one-way coupling between the flow solver and the acoustic solver are discussed: (a) for aerodynamic sound generated at solid surfaces, and (b) in the free stream. Test results indicate how the coupling achieves the necessary accuracy so that Computational Fluid Dynamics codes can be used in aeroacoustic simulations.

Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • G.S. Djambazov
    • 1
  • C.-H. Lai
    • 1
  • K.A. Pericleous
    • 1
  1. 1.School of Computing and Mathematical Sciences, University of Greenwich, 30 Park Row, London SE10 9LS, UK (e-mail: G.Djambazov@gre.ac.uk)UK