Flow and heat transfer in rotating two-pass rectangular channels (AR = 2) by Reynolds stress turbulence model

Mohammad Al-Qahtani; Yong Jun Jang; Hamn Ching Chen; Je Chin Han

doi:10.1016/S0017-9310(01)00292-7

Flow and heat transfer in rotating two-pass rectangular channels (AR = 2) by Reynolds stress turbulence model

Mohammad Al-Qahtani, Yong Jun Jang, Hamn Ching Chen^*, Je Chin Han

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

51 Scopus citations

Abstract

Numerical predictions of three-dimensional turbulent flow and heat transfer are presented for a rotating two-pass smooth rectangular channel with channel aspect ratio of 2:1. The focus of this study is to investigate the effect of rotation, channel orientation and the sharp 180° turn on the flow and heat transfer distributions. Two channel orientation, are studied: β = 90° and β = 135°. A multi-block Reynolds-averaged Navier-Stokes (RANS) method was employed in conjunction with a near-wall second-moment turbulence closure. The Reynolds number (Re) is fixed at 10,000 while the rotation number (Ro) is varied from 0 to 0.22. Two inlet coolant-to-wall density ratios △ρ/ρ are studied (0.115 and 0.22). The numerical results are compared with the experimental data for both stationary and rotating two-pass rectangular channels.

Original language	English
Pages (from-to)	1823-1838
Number of pages	16
Journal	International Journal of Heat and Mass Transfer
Volume	45
Issue number	9
DOIs	https://doi.org/10.1016/S0017-9310(01)00292-7
State	Published - 4 Mar 2002
Externally published	Yes

Bibliographical note

Funding Information:
The leading author, Mohammad Al-Qahtani, received a fellowship from King Fahd University; Saudi Arabia, for his Ph.D. study at Texas A&M University. This work was supported by the Texas Higher Education Coordination Board Advanced Technology Program under grant no. 999903-165. The computations were performed on the Cray J90 at the Texas A&M Supercomputer Center under a supercomputer research grant. Other computations were performed on the Cray C90 of Cray Research Inc. under the sponsorship of Frank Kampe. The GRIDGEN software was supported by Pointwise Inc. The support of all of the above institutions is greatly appreciated.

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

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10.1016/S0017-9310(01)00292-7

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title = "Flow and heat transfer in rotating two-pass rectangular channels (AR = 2) by Reynolds stress turbulence model",

abstract = "Numerical predictions of three-dimensional turbulent flow and heat transfer are presented for a rotating two-pass smooth rectangular channel with channel aspect ratio of 2:1. The focus of this study is to investigate the effect of rotation, channel orientation and the sharp 180° turn on the flow and heat transfer distributions. Two channel orientation, are studied: β = 90° and β = 135°. A multi-block Reynolds-averaged Navier-Stokes (RANS) method was employed in conjunction with a near-wall second-moment turbulence closure. The Reynolds number (Re) is fixed at 10,000 while the rotation number (Ro) is varied from 0 to 0.22. Two inlet coolant-to-wall density ratios △ρ/ρ are studied (0.115 and 0.22). The numerical results are compared with the experimental data for both stationary and rotating two-pass rectangular channels.",

author = "Mohammad Al-Qahtani and Jang, \{Yong Jun\} and Chen, \{Hamn Ching\} and Han, \{Je Chin\}",

note = "Funding Information: The leading author, Mohammad Al-Qahtani, received a fellowship from King Fahd University; Saudi Arabia, for his Ph.D. study at Texas A\&M University. This work was supported by the Texas Higher Education Coordination Board Advanced Technology Program under grant no. 999903-165. The computations were performed on the Cray J90 at the Texas A\&M Supercomputer Center under a supercomputer research grant. Other computations were performed on the Cray C90 of Cray Research Inc. under the sponsorship of Frank Kampe. The GRIDGEN software was supported by Pointwise Inc. The support of all of the above institutions is greatly appreciated. ",

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N1 - Funding Information: The leading author, Mohammad Al-Qahtani, received a fellowship from King Fahd University; Saudi Arabia, for his Ph.D. study at Texas A&M University. This work was supported by the Texas Higher Education Coordination Board Advanced Technology Program under grant no. 999903-165. The computations were performed on the Cray J90 at the Texas A&M Supercomputer Center under a supercomputer research grant. Other computations were performed on the Cray C90 of Cray Research Inc. under the sponsorship of Frank Kampe. The GRIDGEN software was supported by Pointwise Inc. The support of all of the above institutions is greatly appreciated.

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N2 - Numerical predictions of three-dimensional turbulent flow and heat transfer are presented for a rotating two-pass smooth rectangular channel with channel aspect ratio of 2:1. The focus of this study is to investigate the effect of rotation, channel orientation and the sharp 180° turn on the flow and heat transfer distributions. Two channel orientation, are studied: β = 90° and β = 135°. A multi-block Reynolds-averaged Navier-Stokes (RANS) method was employed in conjunction with a near-wall second-moment turbulence closure. The Reynolds number (Re) is fixed at 10,000 while the rotation number (Ro) is varied from 0 to 0.22. Two inlet coolant-to-wall density ratios △ρ/ρ are studied (0.115 and 0.22). The numerical results are compared with the experimental data for both stationary and rotating two-pass rectangular channels.

AB - Numerical predictions of three-dimensional turbulent flow and heat transfer are presented for a rotating two-pass smooth rectangular channel with channel aspect ratio of 2:1. The focus of this study is to investigate the effect of rotation, channel orientation and the sharp 180° turn on the flow and heat transfer distributions. Two channel orientation, are studied: β = 90° and β = 135°. A multi-block Reynolds-averaged Navier-Stokes (RANS) method was employed in conjunction with a near-wall second-moment turbulence closure. The Reynolds number (Re) is fixed at 10,000 while the rotation number (Ro) is varied from 0 to 0.22. Two inlet coolant-to-wall density ratios △ρ/ρ are studied (0.115 and 0.22). The numerical results are compared with the experimental data for both stationary and rotating two-pass rectangular channels.

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Flow and heat transfer in rotating two-pass rectangular channels (AR = 2) by Reynolds stress turbulence model

Abstract

Bibliographical note

ASJC Scopus subject areas

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