Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
J. Fluid Mech. (2003), vol. 477, pp. 215225. c 2003 Cambridge University Press DOI: 10.1017/S0022112002002987 Printed in the United Kingdom
 

Summary: J. Fluid Mech. (2003), vol. 477, pp. 215225. c 2003 Cambridge University Press
DOI: 10.1017/S0022112002002987 Printed in the United Kingdom
215
A large-eddy simulation study of transition and
flow instability in a porous-walled chamber with
mass injection
By S. V. A PT E AND V. YA NG
Department of Mechanical and Nuclear Engineering, Pennsylvania State University,
University Park, PA 16802, USA
(Received 13 July 2002 and in revised form 30 August 2002)
The unsteady flow evolution in a porous chamber with surface mass injection sim-
ulating propellant burning in a nozzleless solid rocket motor has been investigated
by means of a large-eddy simulation (LES) technique. Of particular importance is
the turbulence-transition mechanism in injection-driven compressible flows with high
injection rates in a chamber closed at one end and connected to a divergent nozzle
at the exit. The spatially filtered and Favre-averaged conservation equations of mass,
momentum and energy are solved for resolved scales. The effect of unresolved subgrid
scales is treated by using a dynamic Smagorinsky model extended to compressible
flows. Three successive regimes of flow development are observed: laminar, tran-
sitional, and fully developed turbulent flow. Surface transpiration facilitates the for-

  

Source: Apte, Sourabh V. - School of Mechanical, Industrial, and Manufacturing Engineering, Oregon State University

 

Collections: Engineering