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Computational Analysis of Two-Dimensional Inviscid Flow Around Turbine Cascade Using Gas Kinetic Bhatnagar-Gross-Krook (BGK) Scheme

Fluid flows within turbomachinery tend to be extremely complex. Understanding such flows is crucial to improve current turbomachinery designs, and the computational approach can be used to great advantage in this regard. This study presents a gas kinetic Bhatnagar-Gross-Krook (BGK) scheme to calc...

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Main Author: Abdusslam, Saleh Naser
Format: Thesis
Language:English
English
Published: 2004
Online Access:http://psasir.upm.edu.my/id/eprint/256/1/549512_FK_2004_76.pdf
http://psasir.upm.edu.my/id/eprint/256/
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spelling my.upm.eprints.2562013-05-27T06:47:01Z http://psasir.upm.edu.my/id/eprint/256/ Computational Analysis of Two-Dimensional Inviscid Flow Around Turbine Cascade Using Gas Kinetic Bhatnagar-Gross-Krook (BGK) Scheme Abdusslam, Saleh Naser Fluid flows within turbomachinery tend to be extremely complex. Understanding such flows is crucial to improve current turbomachinery designs, and the computational approach can be used to great advantage in this regard. This study presents a gas kinetic Bhatnagar-Gross-Krook (BGK) scheme to calculate the flow within a turbine cascade. The two dimensional Euler equations with a numerical method based on the gas kinetic Bhatnagar-Gross-Krook (BGK) scheme was developed to simulate the flow around a turbine cascade configuration. The grids around the select model are efficiently generated using a multi-zone structure technique.Computed results for the even studied cases were compared with experimental data in terms of Mach number distribution. Comparisons of these results with experimental data were made wherever possible and the agreement between the two is found to be good. In addition the gas kinetic Bhatnagar-Gross-Krook (BGK) scheme as the numerical procedure has been tested for its accuracy in solving the two-dimensional compressible inviscid flow fields. Analyzing the results in regular shock reflection revealed that the gas kinetic Bhatnagar-Gross-Krook (BGK) scheme is able to produce numerical results that are comparable, robust, and accurate as Roe’s scheme. In addition, the gas kinetic Bhatnagar-Gross-Krook (BGK) scheme converges faster than Roe's scheme. For a given 1000 time iterations, the BGK scheme converges at 887 time iterations while the Roe's scheme converges at 906 time iterations. Therefore, the BGK scheme proved to be more efficient than Roe’s scheme. 2004-06 Thesis NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/256/1/549512_FK_2004_76.pdf Abdusslam, Saleh Naser (2004) Computational Analysis of Two-Dimensional Inviscid Flow Around Turbine Cascade Using Gas Kinetic Bhatnagar-Gross-Krook (BGK) Scheme. Masters thesis, Universiti Putra Malaysia. English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description Fluid flows within turbomachinery tend to be extremely complex. Understanding such flows is crucial to improve current turbomachinery designs, and the computational approach can be used to great advantage in this regard. This study presents a gas kinetic Bhatnagar-Gross-Krook (BGK) scheme to calculate the flow within a turbine cascade. The two dimensional Euler equations with a numerical method based on the gas kinetic Bhatnagar-Gross-Krook (BGK) scheme was developed to simulate the flow around a turbine cascade configuration. The grids around the select model are efficiently generated using a multi-zone structure technique.Computed results for the even studied cases were compared with experimental data in terms of Mach number distribution. Comparisons of these results with experimental data were made wherever possible and the agreement between the two is found to be good. In addition the gas kinetic Bhatnagar-Gross-Krook (BGK) scheme as the numerical procedure has been tested for its accuracy in solving the two-dimensional compressible inviscid flow fields. Analyzing the results in regular shock reflection revealed that the gas kinetic Bhatnagar-Gross-Krook (BGK) scheme is able to produce numerical results that are comparable, robust, and accurate as Roe’s scheme. In addition, the gas kinetic Bhatnagar-Gross-Krook (BGK) scheme converges faster than Roe's scheme. For a given 1000 time iterations, the BGK scheme converges at 887 time iterations while the Roe's scheme converges at 906 time iterations. Therefore, the BGK scheme proved to be more efficient than Roe’s scheme.
format Thesis
author Abdusslam, Saleh Naser
spellingShingle Abdusslam, Saleh Naser
Computational Analysis of Two-Dimensional Inviscid Flow Around Turbine Cascade Using Gas Kinetic Bhatnagar-Gross-Krook (BGK) Scheme
author_facet Abdusslam, Saleh Naser
author_sort Abdusslam, Saleh Naser
title Computational Analysis of Two-Dimensional Inviscid Flow Around Turbine Cascade Using Gas Kinetic Bhatnagar-Gross-Krook (BGK) Scheme
title_short Computational Analysis of Two-Dimensional Inviscid Flow Around Turbine Cascade Using Gas Kinetic Bhatnagar-Gross-Krook (BGK) Scheme
title_full Computational Analysis of Two-Dimensional Inviscid Flow Around Turbine Cascade Using Gas Kinetic Bhatnagar-Gross-Krook (BGK) Scheme
title_fullStr Computational Analysis of Two-Dimensional Inviscid Flow Around Turbine Cascade Using Gas Kinetic Bhatnagar-Gross-Krook (BGK) Scheme
title_full_unstemmed Computational Analysis of Two-Dimensional Inviscid Flow Around Turbine Cascade Using Gas Kinetic Bhatnagar-Gross-Krook (BGK) Scheme
title_sort computational analysis of two-dimensional inviscid flow around turbine cascade using gas kinetic bhatnagar-gross-krook (bgk) scheme
publishDate 2004
url http://psasir.upm.edu.my/id/eprint/256/1/549512_FK_2004_76.pdf
http://psasir.upm.edu.my/id/eprint/256/
_version_ 1643821776754442240
score 13.211869

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