Physics – Fluid Dynamics
Scientific paper
2008-06-12
Physical Review E: Statistical, Nonlinear, and Soft Matter Physics 78, 3 (2008) 036319
Physics
Fluid Dynamics
Scientific paper
10.1103/PhysRevE.78.036319
Forced turbulence combined with the effect of rotation and shear flow is studied. In a previous paper [Leprovost and Kim, PRE in press (2008)], we considered the case where the shear and the rotation are perpendicular. Here, we consider the complementary case of parallel rotation and shear, elucidating how rotation and flow shear influence the generation of shear flow (e.g. the direction of energy cascade), turbulence level, transport of particles and momentum. In contrast with the case where rotation and shear are perpendicular, we found that rotation affects turbulence amplitude only for very rapid rotation ($\Omega \gg \A$) where it reduces slightly the anisotropy due to shear flow. Also, concerning the transport properties of turbulence, we find that rotation affects only the transport of particle and only for rapid rotation, leading to an almost isotropic transport (whereas, in the case of perpendicular rotation and shear, rotation favors isotropic transport even for slow rotation).
Kim Eun-jin
Leprovost Nicolas
No associations
LandOfFree
Analytical theory of forced rotating sheared turbulence. The Parallel case does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Analytical theory of forced rotating sheared turbulence. The Parallel case, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analytical theory of forced rotating sheared turbulence. The Parallel case will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-691212