BEM simulation of compressible fluid flow in an enclosure induced by thermoacoustic waves
The problem of unsteady compressible fluid flow in an enclosure induced by thermoacoustic waves is studied numerically. Full compressible set of Navier-Stokes equations are considered and numerically solved by boundary-domain integral equations approach coupled with wavelet compression and domain decomposition to achieve numerical efficiency. The thermal energy equation is written in its most general form including the Rayleigh and reversible expansion rate terms. Both, the classical Fourier heat flux model and wave heat conduction model are investigated. The velocity-vorticity formulation of the governing Navier-Stokes equations is employed, while the pressure field is evaluated from the corresponding pressure Poisson equation. Material properties are taken to be for the perfect gas, and assumed to be pressure and temperature dependent.
2009
2012-05-31 13:38:25
1033
compressible fluid flow, boundary element method, thermoacoustic waves, velocity-vorticity fomulation
tok stisljive tekočine, metoda robnih elementov, termoakustični valovi, hitrostno vrtinčna formulacija
Leopold
Škerget
70
Jure
Ravnik
70
UDK
4
532.7:519.61/.64
COBISS_ID
3
13062934
ISSN pri članku
9
0955-7997
NUK URN
18
URN:SI:UM:DK:GX1XON9U
0
Predstavitvena datoteka
2012-05-31 13:38:33