Direct numerical simulation of a turbulent boundary layer with passive scalar transport
2010 (English)In: Direct and Large-Eddy Simulation 7, 2010, 321-327 p.Conference paper (Refereed)
A fully-resolved direct numerical simulation (DNS) of a spatially developing turbulent boundary layer with passive scalars over a flat plate under zero pressure gradient (ZPG) has been carried out using a spectral method with about 40M grid points. The highest Reynolds number based on the momentum thickness and free-stream velocity is Re θ = 850 and the molecular Prandtl numbers for the scalars range from 0.2 to 2.0. The intermittent region near the boundary-layer edge was identified by investigating the high-order moments and PDF. In addition, it was found that the streamwise velocity is similar to the scalar distribution at Pr = 0. 71 with isoscalar wall boundary condition. Far away from the wall, the two quantities become less correlated.
Place, publisher, year, edition, pages
2010. 321-327 p.
, ERCOFTAC Series, ISSN 1382-4309 ; 13 (4)
Fluid Mechanics and Acoustics
IdentifiersURN: urn:nbn:se:kth:diva-86872DOI: 10.1007/978-90-481-3652-0_48ISI: 000306194300048OAI: oai:DiVA.org:kth-86872DiVA: diva2:501103
Direct and Large-Eddy Simulation 7. Trieste, Italy. September 8-10 2008
QC 201204192012-02-132012-02-132013-05-06Bibliographically approved