4.2 Article

Using Numerical Dissipation Rate and Viscosity to Assess Turbulence-Related Data Accuracy - Part 2: Results

Journal

CHEMIE INGENIEUR TECHNIK
Volume 95, Issue 9, Pages 1448-1456

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/cite.202200045

Keywords

Computational fluid dynamics; Numerical dissipation; Numerical viscosity; Reynolds stress tensor

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This is the second part of a two-part paper that focuses on assessing the accuracy of turbulence-related data from CFD simulations using effective numerical dissipation rate and effective numerical viscosity. In this part, the relevant solution data obtained through CFD are compared to values from laser Doppler anemometry measurements to explore the feasibility of assessing the accuracy of such data using the two mentioned quantities.
This is the second part of a two-part paper focusing on the assessment of accuracy of turbulence-related data from CFD simulations using effective numerical dissipation rate and effective numerical viscosity. Experimental setup has been discussed in the first part of this series. Here, the relevant solution data obtained via CFD are compared to the values from laser Doppler anemometry measurements, and it is studied whether the accuracy of such data can be assessed using the two mentioned quantities. The overall outcome is that although judging mesh quality generally is possible, alone the two quantities are insufficient to draw conclusions regarding the actual solution data.

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