Computation of transonic diffuser flows by a lagged k-omega turbulence model
Xiao, Q. and Tsai, H.M. and Liu, F. (2003) Computation of transonic diffuser flows by a lagged k-omega turbulence model. Journal of Propulsion and Power, 19 (3). pp. 473-483. ISSN 1533-3876
Full text not available in this repository.Request a copyAbstract
The lag model proposed by Olsen and Coakley is applied in combination with the baseline k–! two-equation turbulence model to simulate the steady and unsteady transonic flows in a diffuser. A fully implicit time-accurate multigrid algorithm is used to solve the unsteady Navier–Stokes equations and the coupled k–! turbulence model equations.Two test cases are investigated, one with a weak shock in the channel corresponding to an exit-static-toinlet-total pressure ratio Rp = 0.82 and the other with a strong shock corresponding to Rp = 0.72. Unsteady flows are induced by imposing fluctuating backpressure. Computational results are compared with experimental data and demonstrate notable improvement by the lag model for flows with strong shock–boundary-layer interactions.
ORCID iDs
Xiao, Q. ORCID: https://orcid.org/0000-0001-8512-5299, Tsai, H.M. and Liu, F.;-
-
Item type: Article ID code: 39079 Dates: DateEvent2003PublishedSubjects: Naval Science Department: Faculty of Engineering > Naval Architecture, Ocean & Marine Engineering Depositing user: Pure Administrator Date deposited: 11 Apr 2012 13:23 Last modified: 11 Oct 2024 01:13 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/39079