Partially Averaged Navier-Stokes Modelling of Turbulent Channel Flow with and without Forcing
Paper in proceeding, 2009

Turbulent channel flow is computed using the Partially Averaged Navier-Stokes (PANS) method which is derived from a parent RANS k - e model and controlled by two parameters: the unresolved-to-total ratio of kinetic energy (fk) and of dissipation (f£). Backscatter from a scale-similarity model is used as forcing which is added in the momentum equations in order to trigger resolved turbulence. A combination of the backscatter model with the PANS methodology is evaluated in channel flow. It was found that the PANS model is able to yield reasonable predictions with an appropriate value of fk- In addition, it was demonstrated that adding forcing has the capability of creating more resolved turbulence, especially for small fk.

Author

Jiamei Ma

Chalmers, Applied Mechanics

China Agricultural University

Lars Davidson

Chalmers, Applied Mechanics, Fluid Dynamics

Peng Shia-Hui

Chalmers, Applied Mechanics, Fluid Dynamics

F.J. Wang

China Agricultural University

Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer

26425629 (ISSN) 23772816 (eISSN)

Vol. 2009-September

6th International Symposium On Turbulence, Heat and Mass Transfer, THMT 2009
Rom, Italy,

Subject Categories (SSIF 2011)

Fluid Mechanics and Acoustics

DOI

10.1615/ICHMT.2009.TurbulHeatMassTransf.760

More information

Latest update

6/11/2025