Wall-resolved LES of channel flow: A correlation for the discontinuity of εθ at the fluid-solid interface

C. Flageul; I. Tiselj; S. Benhamadouche; M. Ferrand

doi:10.1615/THMT-18.1010

Wall-resolved LES of channel flow: A correlation for the discontinuity of ε_θ at the fluid-solid interface

C. Flageul
, I. Tiselj
, S. Benhamadouche
, M. Ferrand

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Conjugate heat transfer represents the actual thermal coupling between a fluid and a solid part. It is of prime importance in nuclear industrial applications where fluctuating thermal stresses are a concern, e.g. in case of a severe emergency cooling (Pressurized Thermal Shock) or long-term ageing of materials such as thermal striping occurring in T-junctions. The present paper aims at contributing to the improvement of refined RANS approaches for conjugate heat transfer. Using wall-resolved LES of a turbulent channel flow at Re_τ = 395 and Pr = 0.71, a correlation for the discontinuity of ε_θ at the fluid-solid interface is proposed, based on 49 different combination of fluid-solid thermal properties ratios.

Original language	English
Title of host publication	THMT 2018 - Proceedings of the 9th International Symposium on Turbulence Heat and Mass Transfer
Publisher	Begell House Inc.
Pages	927-938
Number of pages	12
ISBN (Electronic)	9781567004687
DOIs	https://doi.org/10.1615/THMT-18.1010
Publication status	Published - 1 Jan 2018
Externally published	Yes
Event	9th International Symposium on Turbulence Heat and Mass Transfer, THMT 2018 - Rio de Janeiro, Brazil Duration: 10 Jul 2018 → 13 Jul 2018

Publication series

Name	Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer
Volume	2018-July
ISSN (Electronic)	2377-2816

Conference

Conference	9th International Symposium on Turbulence Heat and Mass Transfer, THMT 2018
Country/Territory	Brazil
City	Rio de Janeiro
Period	10/07/18 → 13/07/18

Access to Document

10.1615/THMT-18.1010

Cite this

Flageul, C., Tiselj, I., Benhamadouche, S., & Ferrand, M. (2018). Wall-resolved LES of channel flow: A correlation for the discontinuity of ε_θ at the fluid-solid interface. In THMT 2018 - Proceedings of the 9th International Symposium on Turbulence Heat and Mass Transfer (pp. 927-938). (Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer; Vol. 2018-July). Begell House Inc.. https://doi.org/10.1615/THMT-18.1010

Flageul, C. ; Tiselj, I. ; Benhamadouche, S. et al. / Wall-resolved LES of channel flow : A correlation for the discontinuity of ε_θ at the fluid-solid interface. THMT 2018 - Proceedings of the 9th International Symposium on Turbulence Heat and Mass Transfer. Begell House Inc., 2018. pp. 927-938 (Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer).

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title = "Wall-resolved LES of channel flow: A correlation for the discontinuity of εθ at the fluid-solid interface",

abstract = "Conjugate heat transfer represents the actual thermal coupling between a fluid and a solid part. It is of prime importance in nuclear industrial applications where fluctuating thermal stresses are a concern, e.g. in case of a severe emergency cooling (Pressurized Thermal Shock) or long-term ageing of materials such as thermal striping occurring in T-junctions. The present paper aims at contributing to the improvement of refined RANS approaches for conjugate heat transfer. Using wall-resolved LES of a turbulent channel flow at Reτ = 395 and Pr = 0.71, a correlation for the discontinuity of εθ at the fluid-solid interface is proposed, based on 49 different combination of fluid-solid thermal properties ratios.",

author = "C. Flageul and I. Tiselj and S. Benhamadouche and M. Ferrand",

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Flageul, C, Tiselj, I, Benhamadouche, S & Ferrand, M 2018, Wall-resolved LES of channel flow: A correlation for the discontinuity of ε_θ at the fluid-solid interface. in THMT 2018 - Proceedings of the 9th International Symposium on Turbulence Heat and Mass Transfer. Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer, vol. 2018-July, Begell House Inc., pp. 927-938, 9th International Symposium on Turbulence Heat and Mass Transfer, THMT 2018, Rio de Janeiro, Brazil, 10/07/18. https://doi.org/10.1615/THMT-18.1010

Wall-resolved LES of channel flow: A correlation for the discontinuity of ε_θ at the fluid-solid interface. / Flageul, C.; Tiselj, I.; Benhamadouche, S. et al.
THMT 2018 - Proceedings of the 9th International Symposium on Turbulence Heat and Mass Transfer. Begell House Inc., 2018. p. 927-938 (Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer; Vol. 2018-July).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - Conjugate heat transfer represents the actual thermal coupling between a fluid and a solid part. It is of prime importance in nuclear industrial applications where fluctuating thermal stresses are a concern, e.g. in case of a severe emergency cooling (Pressurized Thermal Shock) or long-term ageing of materials such as thermal striping occurring in T-junctions. The present paper aims at contributing to the improvement of refined RANS approaches for conjugate heat transfer. Using wall-resolved LES of a turbulent channel flow at Reτ = 395 and Pr = 0.71, a correlation for the discontinuity of εθ at the fluid-solid interface is proposed, based on 49 different combination of fluid-solid thermal properties ratios.

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Flageul C, Tiselj I, Benhamadouche S, Ferrand M. Wall-resolved LES of channel flow: A correlation for the discontinuity of ε_θ at the fluid-solid interface. In THMT 2018 - Proceedings of the 9th International Symposium on Turbulence Heat and Mass Transfer. Begell House Inc. 2018. p. 927-938. (Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer). doi: 10.1615/THMT-18.1010