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HRT

Seminar

Stratified turbulence: a possible interpretation of some geophysical turbulence measurements

Riley, JJ (Washington)
Thursday 11 December 2008, 14:30-15:00

Seminar Room 1, Newton Institute

Abstract

Stratified turbulence is a flow dominated by stable density stratification, and characterized by low internal Froude numbers and high Reynolds numbers; in the present study it is also assumed that the Rossby number is large. Flows in such parameter regimes occur often in the oceans and in the atmosphere. Results of direct numerical simulations of stratified turbulence, some scaling arguments, and implications regarding laboratory experiments will be presented. The results suggest that stratified turbulence is a possible interpretation of some oceanic and atmospheric measurements.

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