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32nd NIA CFD Seminar: Simulation of Stratified Turbulence Over the Coastal Shelf by Guillaume Martinat

Posted By: Hiro
Date:Wed, 24 Apr 2013, 1:16 p.m.

32nd NIA CFD Seminar

Topic: Simulation of Stratified Turbulence Over the Coastal Shelf

Date: Tuesday, April 30, 2013

Time:11:00am-noon (EST),

Location: NIA room 101

Speaker: Guillaume Martinat

Biography: Dr. Guillaume Martinat is a postdoctoral researcher at the Center for Coastal Physical Oceanography, Old Dominion University, Norfolk, VA. He graduated a M.Sc in applied physics from Université de Rennes 1, France and a D.Sc in Fluid Dynamics from Université de Toulouse, France. His research interest include turbulence modeling, geophysical fluid dynamics and unsteady separated flows.

Abstract: Turbulent shear flows on shallow continental shelves (here shallow means that the interaction with the solid, no-slip bottom is important) are of great importance because of their role in vertical mixing as well as on the transport of sediment and bioactive material. The presence of a wavefield in these areas can lead to the appearance of longitudinal coherent vortical structures which is known as Langmuir circulation. The purpose of this study is to quantify via Large Eddy Simulation the effect of a stable stratification on the dynamics of Langmuir Circulation. Among the questions addressed are: does LC mix the water column and thus destroy the stratification or does strong stratification substantially modify or eliminate LC?

Additional information, including the webcast link, can be found at the NIA CFD Seminar website, which is temporarily located at

http://www.hiroakinishikawa.com/niacfds/

http://niacfds.wordpress.com/


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