DNS of momentum and heat transfer inside rough pipes
Mariangela De Maio
download PDFAbstract. We carry out direct numerical simulation (DNS) of turbulent flow in pipes with a grit-blasted surface, to investigate both on momentum and heat transfer. A wide range of Reynolds numbers are considered, while maintaining a constant molecular Prandtl number of 0.7. The large relative roughness influences both the velocity and the temperature fields, indicating that the Reynolds analogy does not hold at high Reynolds bulk number.
Keywords
Turbulent Flows, Pipe Flows, Roughness, DNS, Heat Transfer
Published online 9/1/2023, 8 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Mariangela De Maio, DNS of momentum and heat transfer inside rough pipes, Materials Research Proceedings, Vol. 33, pp 41-48, 2023
DOI: https://doi.org/10.21741/9781644902677-7
The article was published as article 7 of the book Aerospace Science and Engineering
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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