Growth Suppression in Simulated Compressible Turbulent Mixing Layers
Kwok, Wai Yip
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https://hdl.handle.net/2142/87704
Description
Title
Growth Suppression in Simulated Compressible Turbulent Mixing Layers
Author(s)
Kwok, Wai Yip
Issue Date
2002
Doctoral Committee Chair(s)
Moser, Robert D.
Department of Study
Theoretical and Applied Mechanics
Discipline
Theoretical and Applied Mechanics
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Mechanical
Language
eng
Abstract
Direct numerical simulations of turbulent flows require numerical schemes with high resolution and grid flexibility. Resolution properties of B-spline and compact finite-difference schemes are evaluated using Fourier analysis in periodic domains, and tests based on solution of the wave and heat equations in finite domains, with uniform and non-uniform grids. Results show that compact finite-difference schemes have a higher convergence rate and in some cases better resolution on uniform grids. However, B-spline schemes have more consistent behavior on non-uniform grids, and a more straightforward and robust formulation.
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