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Title:Shear Effects on Buoyancy-Generated Turbulence and Salt Fingers
Author(s):Hwang, Jin Hwan
Doctoral Committee Chair(s):Chris R. Rehmann
Department / Program:Civil Engineering
Discipline:Civil Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Environmental Sciences
Abstract:Linear theory and laboratory experiments on a finger-favorable gravity current are applied to study turbulence in a salt finger favorable flow. The theory reproduces well previous observations for unsheared flow, and it predicts that heat can be transported more efficiently than salt, even in salt finger favorable conditions. Effects of shear on the flux ratio are small. The laboratory experiment also produces results similar to the linear theory. Even though the bulk mixing rate increases as the density ratio decreases, the heat flux is larger than the salt flux, and no strong signature of salt fingers was detected. Eddy diffusivities are estimated from control volume analysis and oceanographic microstructure methods.
Issue Date:2004
Description:148 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2004.
Other Identifier(s):(MiAaPQ)AAI3153323
Date Available in IDEALS:2015-09-25
Date Deposited:2004

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