Numerical Turbulent Heat Transfer in Ribbed Channels and Impinging Ducts

Masoud Rokni; Rongguang Jia; Bengt Sundén

Numerical Turbulent Heat Transfer in Ribbed Channels and Impinging Ducts

Masoud Rokni, Rongguang Jia, Bengt Sundén

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

Abstract

The performance of a low-Reynolds version explicit algebraic stress model is assessed in predicting the turbulent flow and forced heat transfer in ribbed channels (under fully developed conditions) as well as impinging slot jets. The ribs are imposed in the main flow direction and periodic conditions are used in this direction, while no periodic conditions are used in the impinging cases. The calculated results are compared with the experimental results in a backward facing step, a ribbed channels and impingement with multiple slot jets. Both isothermal and constant wall heat flux conditions are imposed on the channel walls, and the turbulent heat fluxes are modeled using simple diffusivity and gradient diffusion type models. The agreement between the computed results and the experimental data is very good.
Keyword: EASM, Low-Reynolds, Ribbed Channels, Impinging, Heat Transfer, Turbulent

Original language	English
Title of host publication	ICHMT, Advances in Computational Heat Transfer,
Editors	Graham Vahl Davis, Eddie Leonardi
Publication date	2001
Pages	671-680
Publication status	Published - 2001
Externally published	Yes
Event	2nd International Symposium on Advances in Computational Heat Transfer - Queensland, Australia Duration: 20 May 2001 → 25 May 2001

Conference

Conference	2nd International Symposium on Advances in Computational Heat Transfer
Country/Territory	Australia
City	Queensland
Period	20/05/2001 → 25/05/2001

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title = "Numerical Turbulent Heat Transfer in Ribbed Channels and Impinging Ducts",

abstract = "The performance of a low-Reynolds version explicit algebraic stress model is assessed in predicting the turbulent flow and forced heat transfer in ribbed channels (under fully developed conditions) as well as impinging slot jets. The ribs are imposed in the main flow direction and periodic conditions are used in this direction, while no periodic conditions are used in the impinging cases. The calculated results are compared with the experimental results in a backward facing step, a ribbed channels and impingement with multiple slot jets. Both isothermal and constant wall heat flux conditions are imposed on the channel walls, and the turbulent heat fluxes are modeled using simple diffusivity and gradient diffusion type models. The agreement between the computed results and the experimental data is very good. Keyword: EASM, Low-Reynolds, Ribbed Channels, Impinging, Heat Transfer, Turbulent",

author = "Masoud Rokni and Rongguang Jia and Bengt Sund{\'e}n",

year = "2001",

language = "English",

pages = "671--680",

editor = "{Vahl Davis}, Graham and Eddie Leonardi",

booktitle = "ICHMT, Advances in Computational Heat Transfer,",

note = "2nd International Symposium on Advances in Computational Heat Transfer ; Conference date: 20-05-2001 Through 25-05-2001",

}

TY - GEN

T1 - Numerical Turbulent Heat Transfer in Ribbed Channels and Impinging Ducts

AU - Rokni, Masoud

AU - Jia, Rongguang

AU - Sundén, Bengt

PY - 2001

Y1 - 2001

N2 - The performance of a low-Reynolds version explicit algebraic stress model is assessed in predicting the turbulent flow and forced heat transfer in ribbed channels (under fully developed conditions) as well as impinging slot jets. The ribs are imposed in the main flow direction and periodic conditions are used in this direction, while no periodic conditions are used in the impinging cases. The calculated results are compared with the experimental results in a backward facing step, a ribbed channels and impingement with multiple slot jets. Both isothermal and constant wall heat flux conditions are imposed on the channel walls, and the turbulent heat fluxes are modeled using simple diffusivity and gradient diffusion type models. The agreement between the computed results and the experimental data is very good. Keyword: EASM, Low-Reynolds, Ribbed Channels, Impinging, Heat Transfer, Turbulent

AB - The performance of a low-Reynolds version explicit algebraic stress model is assessed in predicting the turbulent flow and forced heat transfer in ribbed channels (under fully developed conditions) as well as impinging slot jets. The ribs are imposed in the main flow direction and periodic conditions are used in this direction, while no periodic conditions are used in the impinging cases. The calculated results are compared with the experimental results in a backward facing step, a ribbed channels and impingement with multiple slot jets. Both isothermal and constant wall heat flux conditions are imposed on the channel walls, and the turbulent heat fluxes are modeled using simple diffusivity and gradient diffusion type models. The agreement between the computed results and the experimental data is very good. Keyword: EASM, Low-Reynolds, Ribbed Channels, Impinging, Heat Transfer, Turbulent

M3 - Article in proceedings

SP - 671

EP - 680

BT - ICHMT, Advances in Computational Heat Transfer,

A2 - Vahl Davis, Graham

A2 - Leonardi, Eddie

T2 - 2nd International Symposium on Advances in Computational Heat Transfer

Y2 - 20 May 2001 through 25 May 2001

ER -

Numerical Turbulent Heat Transfer in Ribbed Channels and Impinging Ducts

Abstract

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