CFD Prediction of Heat and Fluid Flow through U-Bends using High Reynolds-number EVM and DSM Models

CFD Prediction of Heat and Fluid Flow through U-Bends using High Reynolds-number EVM and DSM Models

The cooling system of gas turbine blades understanding and improvement is increasing desires for computational techniques which can accurately model the flow field and heat transfer characteristics of blade cooling passage designs under realistic operating conditions. The present study discusses the...

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Main Authors: M. F., Ghazali, F. A., Rahim
Format: Article
Language:English
Published: Elsevier Ltd 2013
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://umpir.ump.edu.my/id/eprint/21522/
http://umpir.ump.edu.my/id/eprint/21522/
http://umpir.ump.edu.my/id/eprint/21522/
http://umpir.ump.edu.my/id/eprint/21522/1/CFD%20Prediction%20of%20Heat%20and%20Fluid%20Flow%20through%20U-Bends-fkm-2013.pdf
id ump-21522
recordtype eprints
spelling ump-215222018-07-09T02:30:09Z http://umpir.ump.edu.my/id/eprint/21522/ CFD Prediction of Heat and Fluid Flow through U-Bends using High Reynolds-number EVM and DSM Models M. F., Ghazali F. A., Rahim TJ Mechanical engineering and machinery The cooling system of gas turbine blades understanding and improvement is increasing desires for computational techniques which can accurately model the flow field and heat transfer characteristics of blade cooling passage designs under realistic operating conditions. The present study discusses the comparisons between modeling and measuring gas turbine blade-cooling applications of the flow development and heat transfer in a stationary square cross-sectioned U-bend of strong curvature of Rc/D = 0.65. A turbulence model of the differential stress model (DSM) is used in combination with three different wall treatments such as a standard form of the wall function (SWF), an analytical wall function (AWF) and a numerical wall function (NWF). The combination of DSM with the numerical wall function (DSM/NWF) has improved markedly the Nusselt number predictions along the outer wall after the bend exit, but did not show any other distinctive predictive advantages over the other DSM models. Elsevier Ltd 2013 Article PeerReviewed text en cc_by_nc_nd http://umpir.ump.edu.my/id/eprint/21522/1/CFD%20Prediction%20of%20Heat%20and%20Fluid%20Flow%20through%20U-Bends-fkm-2013.pdf M. F., Ghazali and F. A., Rahim (2013) CFD Prediction of Heat and Fluid Flow through U-Bends using High Reynolds-number EVM and DSM Models. Procedia Engineering, 53. pp. 600-606. ISSN 1877-7058 https://doi.org/10.1016/j.proeng.2013.02.077 doi: 10.1016/j.proeng.2013.02.077
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
M. F., Ghazali
F. A., Rahim
CFD Prediction of Heat and Fluid Flow through U-Bends using High Reynolds-number EVM and DSM Models
description The cooling system of gas turbine blades understanding and improvement is increasing desires for computational techniques which can accurately model the flow field and heat transfer characteristics of blade cooling passage designs under realistic operating conditions. The present study discusses the comparisons between modeling and measuring gas turbine blade-cooling applications of the flow development and heat transfer in a stationary square cross-sectioned U-bend of strong curvature of Rc/D = 0.65. A turbulence model of the differential stress model (DSM) is used in combination with three different wall treatments such as a standard form of the wall function (SWF), an analytical wall function (AWF) and a numerical wall function (NWF). The combination of DSM with the numerical wall function (DSM/NWF) has improved markedly the Nusselt number predictions along the outer wall after the bend exit, but did not show any other distinctive predictive advantages over the other DSM models.
format Article
author M. F., Ghazali
F. A., Rahim
author_facet M. F., Ghazali
F. A., Rahim
author_sort M. F., Ghazali
title CFD Prediction of Heat and Fluid Flow through U-Bends using High Reynolds-number EVM and DSM Models
title_short CFD Prediction of Heat and Fluid Flow through U-Bends using High Reynolds-number EVM and DSM Models
title_full CFD Prediction of Heat and Fluid Flow through U-Bends using High Reynolds-number EVM and DSM Models
title_fullStr CFD Prediction of Heat and Fluid Flow through U-Bends using High Reynolds-number EVM and DSM Models
title_full_unstemmed CFD Prediction of Heat and Fluid Flow through U-Bends using High Reynolds-number EVM and DSM Models
title_sort cfd prediction of heat and fluid flow through u-bends using high reynolds-number evm and dsm models
publisher Elsevier Ltd
publishDate 2013
url http://umpir.ump.edu.my/id/eprint/21522/
http://umpir.ump.edu.my/id/eprint/21522/
http://umpir.ump.edu.my/id/eprint/21522/
http://umpir.ump.edu.my/id/eprint/21522/1/CFD%20Prediction%20of%20Heat%20and%20Fluid%20Flow%20through%20U-Bends-fkm-2013.pdf
first_indexed 2023-09-18T22:31:36Z
last_indexed 2023-09-18T22:31:36Z
_version_ 1777416323020619776

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