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Title: A comparison of three approaches to compute the effective Reynolds number of the implicit large-eddy simulations

Here, 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.
 [1] ;  [2]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. The Univ. of Sydney, Sydney, NSW (Australia)
Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 0098-2202
DOE Contract Number:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Fluids Engineering; Journal Volume: 138; Journal Issue: 7
American Association of Mechanical Engineers (ASME)
Research Org:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org:
Country of Publication:
United States
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS flow (dynamics); turbulence; viscosity; Reynolds number; large eddy simulation; energy dissipation