Using numerical dissipation rate and viscosity to assess turbulence-related data accuracy - Part 1: Experimental setup

This is the first part of a two-part paper focusing on the assessment of accuracy of turbulence-related data from computational fluid dynamics (CFD) simulations using effective numerical dissipation rate and effective numerical viscosity. Setup of the CFD cases replicating a swirling pipe flow experiment from literature, for which turbulence-related data measured via laser Doppler anemometry (LDA) had been reported, is presented. The way effective numerical dissipation rate and effective numerical viscosity were obtained for each mesh cell is also discussed. The results of the study are presented in the second part of this series.

Keywords

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

Citation

CHEMIE INGENIEUR TECHNIK. 2023, vol. 95, issue 9, p. 1441-1447.
https://onlinelibrary.wiley.com/doi/10.1002/cite.202200044

Document type

Peer-reviewed

Document version

Published version

Language of document

en

Document licence

Creative Commons Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/