Comparison of cell centered and cell vertex scheme in the calculation of high speed compressible flows

This paper describes the comparison between the cell centered scheme and cell vertex scheme in the calculation of high speed compressible flow properties. The calculation is carried out using Computational Fluid Dynamic (CFD) in which the mass, momentum and energy equations are solved simultaneously...

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Main Authors: Rahman, S., Yusoff, Mohd.Z., Hasini, H.
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Published: 2017
Online Access:http://dspace.uniten.edu.my:80/jspui/handle/123456789/5063
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spelling my.uniten.dspace-50632020-09-10T02:35:04Z Comparison of cell centered and cell vertex scheme in the calculation of high speed compressible flows Rahman, S. Yusoff, Mohd.Z. Hasini, H. This paper describes the comparison between the cell centered scheme and cell vertex scheme in the calculation of high speed compressible flow properties. The calculation is carried out using Computational Fluid Dynamic (CFD) in which the mass, momentum and energy equations are solved simultaneously over the flow domain. The geometry under investigation consists of a Binnie and Green convergent-divergent nozzle and structured mesh scheme is implemented throughout the flow domain. The finite volume CFD solver employs second-order accurate central differencing scheme for spatial discretization. In addition, the second-order accurate cell-vertex finite volume spatial discretization is also introduced in this case for comparison. The multi-stage Runge-Kutta time integration is implemented for solving a set of non-linear governing equations with variables stored at the vertices. Artificial dissipations used second and fourth order terms with pressure switch to detect changes in pressure gradient. This is important to control the solution stability and capture shock discontinuity. The result is compared with experimental measurement and good agreement is obtained for both cases. © 2012 American Institute of Physics. 2017-11-14T03:35:11Z 2017-11-14T03:35:11Z 2012 http://dspace.uniten.edu.my:80/jspui/handle/123456789/5063
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country Malaysia
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description This paper describes the comparison between the cell centered scheme and cell vertex scheme in the calculation of high speed compressible flow properties. The calculation is carried out using Computational Fluid Dynamic (CFD) in which the mass, momentum and energy equations are solved simultaneously over the flow domain. The geometry under investigation consists of a Binnie and Green convergent-divergent nozzle and structured mesh scheme is implemented throughout the flow domain. The finite volume CFD solver employs second-order accurate central differencing scheme for spatial discretization. In addition, the second-order accurate cell-vertex finite volume spatial discretization is also introduced in this case for comparison. The multi-stage Runge-Kutta time integration is implemented for solving a set of non-linear governing equations with variables stored at the vertices. Artificial dissipations used second and fourth order terms with pressure switch to detect changes in pressure gradient. This is important to control the solution stability and capture shock discontinuity. The result is compared with experimental measurement and good agreement is obtained for both cases. © 2012 American Institute of Physics.
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author Rahman, S.
Yusoff, Mohd.Z.
Hasini, H.
spellingShingle Rahman, S.
Yusoff, Mohd.Z.
Hasini, H.
Comparison of cell centered and cell vertex scheme in the calculation of high speed compressible flows
author_facet Rahman, S.
Yusoff, Mohd.Z.
Hasini, H.
author_sort Rahman, S.
title Comparison of cell centered and cell vertex scheme in the calculation of high speed compressible flows
title_short Comparison of cell centered and cell vertex scheme in the calculation of high speed compressible flows
title_full Comparison of cell centered and cell vertex scheme in the calculation of high speed compressible flows
title_fullStr Comparison of cell centered and cell vertex scheme in the calculation of high speed compressible flows
title_full_unstemmed Comparison of cell centered and cell vertex scheme in the calculation of high speed compressible flows
title_sort comparison of cell centered and cell vertex scheme in the calculation of high speed compressible flows
publishDate 2017
url http://dspace.uniten.edu.my:80/jspui/handle/123456789/5063
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score 13.209306