Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/130104
Title: Viscous computation of steady/unsteady transonic diffuser flows
Authors: Xiao, Q. 
Tsai, H.M. 
Liu, F.
Issue Date: 2002
Citation: Xiao, Q., Tsai, H.M., Liu, F. (2002). Viscous computation of steady/unsteady transonic diffuser flows. 32nd AIAA Fluid Dynamics Conference and Exhibit. ScholarBank@NUS Repository.
Abstract: The lag model proposed by Olsen and Coakley (2001) is applied to simulate the steady and unsteady transonic flows in a diffuser. The unsteady flows are induced by imposing fluctuating back-pressures. A fully implicit time-accurate multigrid algorithm is used for solving the Navier-Stokes equations and the coupled k-ω turbulence model equations. Two test cases are investigated, one with a weak shock in the channel corresponding to a static-to-total pressure ratio Rp=0.82 at the diffuser exit and the other with a strong shock corresponding to Rp=0.72. The results with the implementation of the lag model are closer to the experimental data for the strong-shock case. However, the computational results are almost the same with and without the lag model for the weak-shock case. © 2002 by the author.
Source Title: 32nd AIAA Fluid Dynamics Conference and Exhibit
URI: http://scholarbank.nus.edu.sg/handle/10635/130104
ISBN: 9781624101137
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

25
checked on Sep 6, 2019

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.