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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| Format: | Thesis |
| Language: | English English |
| Published: |
2004
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| Online Access: | http://psasir.upm.edu.my/id/eprint/256/1/549512_FK_2004_76.pdf |
| _version_ | 1796965913924206592 |
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| author | Abdusslam, Saleh Naser |
| author_facet | Abdusslam, Saleh Naser |
| author_sort | Abdusslam, Saleh Naser |
| collection | UPM |
| 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. |
| first_indexed | 2024-03-06T06:52:43Z |
| format | Thesis |
| id | upm.eprints-256 |
| institution | Universiti Putra Malaysia |
| language | English English |
| last_indexed | 2024-03-06T06:52:43Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | 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. Turbomachines - Fluid dynamics English |
| spellingShingle | Turbomachines - Fluid dynamics Abdusslam, Saleh Naser Computational Analysis of Two-Dimensional Inviscid Flow Around Turbine Cascade Using Gas Kinetic Bhatnagar-Gross-Krook (BGK) Scheme |
| title | 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_short | 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 |
| topic | Turbomachines - Fluid dynamics |
| url | http://psasir.upm.edu.my/id/eprint/256/1/549512_FK_2004_76.pdf |
| work_keys_str_mv | AT abdusslamsalehnaser computationalanalysisoftwodimensionalinviscidflowaroundturbinecascadeusinggaskineticbhatnagargrosskrookbgkscheme |