TY - GEN
T1 - DNS and LES of scalar transport in a turbulent plane channel flow at low Reynolds number
AU - Denev, Jordan A.
AU - Fröhlich, Jochen
AU - Bockhorn, Henning
AU - Schwertfirm, Florian
AU - Manhart, Michael
PY - 2008
Y1 - 2008
N2 - The paper reports on DNS and LES of plane channel flow at Re τ = 180 and compares these to a DNS with a higher order convection scheme. For LES different subgrid-scale models like the Smagorinsky, the Dynamic Smagorinsky and the Dynamic Mixed Model were used with the grid being locally refined in the near-wall region. The mixing of a passive scalar has been simulated with two convection schemes, central differencing and HLPA. The latter exhibits numerical diffusion and the results with the central scheme are clearly superior. LES with this scheme reproduced the budget of the scalar variance equation reasonably well.
AB - The paper reports on DNS and LES of plane channel flow at Re τ = 180 and compares these to a DNS with a higher order convection scheme. For LES different subgrid-scale models like the Smagorinsky, the Dynamic Smagorinsky and the Dynamic Mixed Model were used with the grid being locally refined in the near-wall region. The mixing of a passive scalar has been simulated with two convection schemes, central differencing and HLPA. The latter exhibits numerical diffusion and the results with the central scheme are clearly superior. LES with this scheme reproduced the budget of the scalar variance equation reasonably well.
UR - http://www.scopus.com/inward/record.url?scp=70350271200&partnerID=8YFLogxK
U2 - 10.1007/978-3-540-78827-0_27
DO - 10.1007/978-3-540-78827-0_27
M3 - Conference contribution
AN - SCOPUS:70350271200
SN - 3540788255
SN - 9783540788256
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 251
EP - 258
BT - Large-Scale Scientific Computing - 6th International Conference, LSSC 2007, Revised Papers
T2 - 6th International Conference on Large-Scale Scientific Computing, LSSC 2007
Y2 - 5 June 2007 through 9 June 2007
ER -