Change search
ReferencesLink to record
Permanent link

Direct link
A numerical study of homogeneous turbulence and passive scalar transport in rotating shear flow
KTH, School of Engineering Sciences (SCI), Mechanics.ORCID iD: 0000-0002-9819-2906
2005 (English)Conference paper (Refereed)
Abstract [en]

Direct numerical simulations of homogeneous turbulent shear flow subject to spanwise rotation have been carried out. A passive scalar field with an imposed mean gradient was also included in the simulations. The flow reached a state close to the equilibrium structure with a slowly varying turbulence anisotropy and nondimensional shear number SK/ε. Different rotation numbers have been used in the simulations and the rotation either accelerated the growth of kinetic energy or slowed it down. The growth was approximately exponential in a few cases at intermediate shear times. At longer shear times the kinetic energy was growing linearly in most of the cases. The rotation affected considerably the anisotropy of the flow and the velocity correlations. The scalar-velocity fluctuation correlations and the direction of the turbulent scalar flux vector were according to the simulations also strongly influenced by rotation, even as the mechanical to scalar time scale ratio.

Place, publisher, year, edition, pages
2005. 99-104 p.
, 4th International Symposium on Turbulence and Shear Flow Phenomena, Volume 1
National Category
Mechanical Engineering
URN: urn:nbn:se:kth:diva-148504ScopusID: 2-s2.0-84867495407OAI: diva2:749433
4th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 4; Williamsburg, VA; United States; 27 June 2005 through 29 June 2005

QC 20140924

Available from: 2014-09-24 Created: 2014-08-08 Last updated: 2014-09-24Bibliographically approved

Open Access in DiVA

No full text


Search in DiVA

By author/editor
Brethouwer, Gert
By organisation
Mechanical Engineering

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 39 hits
ReferencesLink to record
Permanent link

Direct link