Publication detail

Using numerical dissipation rate and viscosity to assess turbulence-related data accuracy - Part 2: Results

TUREK, V. JEGLA, Z. DOHNAL, M. REPPICH, M.

English title

Using numerical dissipation rate and viscosity to assess turbulence-related data accuracy - Part 2: Results

Type

journal article in Web of Science

Language

en

Original abstract

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.

English abstract

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.

Keywords in English

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

Released

22.08.2023

Publisher

Wiley-VCH GmbH

Location

Weinheim, Germany

ISSN

0009-286X

Volume

95

Number

9

Pages from–to

1448–1456

Pages count

9

BIBTEX


@article{BUT178975,
  author="Vojtěch {Turek} and Zdeněk {Jegla} and Miloslav {Dohnal} and Marcus {Reppich},
  title="Using numerical dissipation rate and viscosity to assess turbulence-related data accuracy – Part 2: Results",
  year="2023",
  volume="95",
  number="9",
  month="August",
  pages="1448--1456",
  publisher="Wiley-VCH GmbH",
  address="Weinheim, Germany",
  issn="0009-286X"
}