Physics
Scientific paper
Aug 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011georl..3816612m&link_type=abstract
Geophysical Research Letters, Volume 38, Issue 16, CiteID L16612
Physics
1
Atmospheric Processes: Turbulence (4490), Oceanography: Physical: Fine Structure And Microstructure, Oceanography: Physical: Turbulence, Diffusion, And Mixing Processes (4490), Oceanography: Physical: Upper Ocean And Mixed Layer Processes
Scientific paper
We provide detailed analyses of the role of secondary instabilities in the transition to turbulence of stratified shear flows at the high Reynolds and Prandtl numbers appropriate to the atmosphere and ocean. Our focus is upon a series of recent observations suggestive of a marked change in the mechanism of transition in this laboratory inaccessible regime. Our results demonstrate the joint dependance of the transition mechanism on these two nondimensional parameters. We discuss the primary transition mechanisms of shear aligned convective instability, stagnation point instability and shear instabilities of the braid in detail.
Mashayek A.
Peltier Richard W.
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