Acoustic receptivity simulations of flow past a flat plate with elliptic leading edge

Autor:	Ardeshir Hanifi, Nima Shahriari, Daniel J. Bodony, Dan S. Henningson
Rok vydání:	2016
Předmět:	Physics Leading edge Mechanical Engineering Acoustics Receptivity Acoustic wave Condensed Matter Physics 01 natural sciences 010305 fluids & plasmas Physics::Fluid Dynamics 010101 applied mathematics Flow (mathematics) Mechanics of Materials 0103 physical sciences Compressibility 0101 mathematics
Zdroj:	Journal of Fluid Mechanics. 800
ISSN:	1469-7645 0022-1120
DOI:	10.1017/jfm.2016.433
Popis:	We present results of numerical simulations of leading-edge acoustic receptivity for acoustic waves impinging on the leading edge of a finite-thickness flat plate. We use both compressible and incompressible flow solvers fitted with high-order high-accuracy numerical methods and independent methods of estimating the receptivity coefficient. The results show that the level of acoustic receptivity in the existing literature appears to be one order of magnitude too high. Our review of previous numerical simulations and experiments clearly identifies some contradictory trends. In the limit of an infinitely thin flat plate, our results are consistent with asymptotic theory and numerical simulations.
Databáze:	OpenAIRE
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