Aerodynamic comparison and validation of rans, K-ω, standard K-ɛ and URANS simulations of flat plate film-cooling

Film cooling has been extensively used to provide thermal protection for the external surfaces of gas turbine components. For the past 40 years, numerous number of film cooling hole designs and arrangements have been introduced. Due to broad designs and arrangements of film cooling, numerical...

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Main Author:	Abdulguad, Osama. H.
Format:	Thesis
Language:	English English English
Published:	2014
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.uthm.edu.my/1629/1/24p%20OSAMA.%20H.%20ABDULGUAD.pdf http://eprints.uthm.edu.my/1629/2/OSAMA.%20H.%20ABDULGUAD%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1629/3/OSAMA.%20H.%20ABDULGUAD%20WATERMARK.pdf
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id	my-uthm-ep.1629
record_format	uketd_dc
spelling	my-uthm-ep.16292021-10-04T01:21:37Z Aerodynamic comparison and validation of rans, K-ω, standard K-ɛ and URANS simulations of flat plate film-cooling 2014-06 Abdulguad, Osama. H. TJ Mechanical engineering and machinery TJ751-805 Miscellaneous motors and engines Including gas, gasoline, diesel engines Film cooling has been extensively used to provide thermal protection for the external surfaces of gas turbine components. For the past 40 years, numerous number of film cooling hole designs and arrangements have been introduced. Due to broad designs and arrangements of film cooling, numerical investigation has been utilized to provide initial insight on the aerodynamics and thermal performance of the new film cooling designs or arrangements. The present work focuses on the numerical investigation of RANS and URANS analyses on a flat plate film cooling. The investigation aims to provide comparison between various turbulent models available for the Reynolds Average Navier Stokes (RANS) analyses and extended to unsteady Reynolds Average Navier Stokes (URANS). The numerical investigations make used of ANSYS CFX ver. 14 and were carried out at Reynolds Number, Re = 7,000 based on the hole diameter at blowing ratio, BR = 0.5. The results of the RANS analyses show significant influence of the turbulent models on the predicted aerodynamics and thermal performance of the film cooling. Qualitative comparison between the simulation and experimental results shows that standard k-ε produces more accurate results from the other considered turbulent models. In addition to that, results of URANS indicate limitation of RANS analyses to provide details on the eddied and vortices formation in film cooling flow structure. 2014-06 Thesis http://eprints.uthm.edu.my/1629/ http://eprints.uthm.edu.my/1629/1/24p%20OSAMA.%20H.%20ABDULGUAD.pdf text en public http://eprints.uthm.edu.my/1629/2/OSAMA.%20H.%20ABDULGUAD%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/1629/3/OSAMA.%20H.%20ABDULGUAD%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Fakulti Kejuruteraan Mekanikal dan Pembuatan
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TJ Mechanical engineering and machinery TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery TJ Mechanical engineering and machinery Abdulguad, Osama. H. Aerodynamic comparison and validation of rans, K-ω, standard K-ɛ and URANS simulations of flat plate film-cooling
description	Film cooling has been extensively used to provide thermal protection for the external surfaces of gas turbine components. For the past 40 years, numerous number of film cooling hole designs and arrangements have been introduced. Due to broad designs and arrangements of film cooling, numerical investigation has been utilized to provide initial insight on the aerodynamics and thermal performance of the new film cooling designs or arrangements. The present work focuses on the numerical investigation of RANS and URANS analyses on a flat plate film cooling. The investigation aims to provide comparison between various turbulent models available for the Reynolds Average Navier Stokes (RANS) analyses and extended to unsteady Reynolds Average Navier Stokes (URANS). The numerical investigations make used of ANSYS CFX ver. 14 and were carried out at Reynolds Number, Re = 7,000 based on the hole diameter at blowing ratio, BR = 0.5. The results of the RANS analyses show significant influence of the turbulent models on the predicted aerodynamics and thermal performance of the film cooling. Qualitative comparison between the simulation and experimental results shows that standard k-ε produces more accurate results from the other considered turbulent models. In addition to that, results of URANS indicate limitation of RANS analyses to provide details on the eddied and vortices formation in film cooling flow structure.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Abdulguad, Osama. H.
author_facet	Abdulguad, Osama. H.
author_sort	Abdulguad, Osama. H.
title	Aerodynamic comparison and validation of rans, K-ω, standard K-ɛ and URANS simulations of flat plate film-cooling
title_short	Aerodynamic comparison and validation of rans, K-ω, standard K-ɛ and URANS simulations of flat plate film-cooling
title_full	Aerodynamic comparison and validation of rans, K-ω, standard K-ɛ and URANS simulations of flat plate film-cooling
title_fullStr	Aerodynamic comparison and validation of rans, K-ω, standard K-ɛ and URANS simulations of flat plate film-cooling
title_full_unstemmed	Aerodynamic comparison and validation of rans, K-ω, standard K-ɛ and URANS simulations of flat plate film-cooling
title_sort	aerodynamic comparison and validation of rans, k-ω, standard k-ɛ and urans simulations of flat plate film-cooling
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Fakulti Kejuruteraan Mekanikal dan Pembuatan
publishDate	2014
url	http://eprints.uthm.edu.my/1629/1/24p%20OSAMA.%20H.%20ABDULGUAD.pdf http://eprints.uthm.edu.my/1629/2/OSAMA.%20H.%20ABDULGUAD%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1629/3/OSAMA.%20H.%20ABDULGUAD%20WATERMARK.pdf
_version_	1747830832897196032

Aerodynamic comparison and validation of rans, K-ω, standard K-ɛ and URANS simulations of flat plate film-cooling

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