The implicit large-eddy simulation (ILES) has been utilized as an effective approach for calculating many complex flows at high Reynolds number flows. Richtmyer–Meshkov instability (RMI) induced flow can be viewed as a homogeneous decaying turbulence (HDT) after the passage of the shock. In this article, a critical evaluation of three methods for estimating the effective Reynolds number and the effective kinematic viscosity is undertaken utilizing high-resolution ILES data. Effective Reynolds numbers based on the vorticity and dissipation rate, or the integral and inner-viscous length scales, are found to be the most self-consistent when compared to the expected phenomenology and wind tunnel experiments.
A Comparison of Three Approaches to Compute the Effective Reynolds Number of the Implicit Large-Eddy Simulations
Livermore, CA 94550
The University of Sydney,
Sydney, New South Wales 2006, Australia
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received March 4, 2015; final manuscript received November 11, 2015; published online April 12, 2016. Assoc. Editor: Daniel Livescu.The United States Government retains, and by accepting the article for publication, the publisher acknowledges that the United States Government retains, a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this work, or allow others to do so, for United States Government purposes.
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Zhou, Y., and Thornber, B. (April 12, 2016). "A Comparison of Three Approaches to Compute the Effective Reynolds Number of the Implicit Large-Eddy Simulations." ASME. J. Fluids Eng. July 2016; 138(7): 070905. https://doi.org/10.1115/1.4032532
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