An assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculations
A comparison of five different spatial discretization schemes is performed considering a typical high speed flow application. Flowfields are simulated using the 2-D Euler equations, discretized in a cell-centered finite volume procedure on unstructured triangular meshes. The algorithms studied inclu...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Instituto de Aeronáutica e Espaço (IAE)
2009-06-01
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| Series: | Journal of Aerospace Technology and Management |
| Subjects: | |
| Online Access: | http://www.jatm.com.br/papers/vol1_n2/JATMv1n2_p135-152_An_assessment_of_unstructured_grid_finite_volume_schemes_for_cold_gas_hypersonic_flow_calculations.pdf |
| _version_ | 1818174481745575936 |
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| author | João Luiz F. Azevedo Heidi Korzenowski |
| author_facet | João Luiz F. Azevedo Heidi Korzenowski |
| author_sort | João Luiz F. Azevedo |
| collection | DOAJ |
| description | A comparison of five different spatial discretization schemes is performed considering a typical high speed flow application. Flowfields are simulated using the 2-D Euler equations, discretized in a cell-centered finite volume procedure on unstructured triangular meshes. The algorithms studied include a central difference-type scheme, and 1st- and 2nd-order van Leer and Liou flux-vector splitting schemes. These methods are implemented in an efficient, edge-based, unstructured grid procedure which allows for adaptive mesh refinement based on flow property gradients. Details of the unstructured grid implementation of the methods are presented together with a discussion of the data structure and of the adaptive refinement strategy. The application of interest is the cold gas flow through a typical hypersonic inlet. Results for different entrance Mach numbers and mesh topologies are discussed in order to assess the comparative performance of the various spatial discretization schemes. |
| first_indexed | 2024-12-11T19:45:05Z |
| format | Article |
| id | doaj.art-465c862aed094f7db985114d25413cd5 |
| institution | Directory Open Access Journal |
| issn | 1984-9648 2175-9146 |
| language | English |
| last_indexed | 2024-12-11T19:45:05Z |
| publishDate | 2009-06-01 |
| publisher | Instituto de Aeronáutica e Espaço (IAE) |
| record_format | Article |
| series | Journal of Aerospace Technology and Management |
| spelling | doaj.art-465c862aed094f7db985114d25413cd52022-12-22T00:52:55ZengInstituto de Aeronáutica e Espaço (IAE)Journal of Aerospace Technology and Management1984-96482175-91462009-06-0112135152An assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculationsJoão Luiz F. AzevedoHeidi KorzenowskiA comparison of five different spatial discretization schemes is performed considering a typical high speed flow application. Flowfields are simulated using the 2-D Euler equations, discretized in a cell-centered finite volume procedure on unstructured triangular meshes. The algorithms studied include a central difference-type scheme, and 1st- and 2nd-order van Leer and Liou flux-vector splitting schemes. These methods are implemented in an efficient, edge-based, unstructured grid procedure which allows for adaptive mesh refinement based on flow property gradients. Details of the unstructured grid implementation of the methods are presented together with a discussion of the data structure and of the adaptive refinement strategy. The application of interest is the cold gas flow through a typical hypersonic inlet. Results for different entrance Mach numbers and mesh topologies are discussed in order to assess the comparative performance of the various spatial discretization schemes.http://www.jatm.com.br/papers/vol1_n2/JATMv1n2_p135-152_An_assessment_of_unstructured_grid_finite_volume_schemes_for_cold_gas_hypersonic_flow_calculations.pdfHypersonic flowCold gas flowFinite volume methodUnstructured gridsSpatial discretization schemes |
| spellingShingle | João Luiz F. Azevedo Heidi Korzenowski An assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculations Journal of Aerospace Technology and Management Hypersonic flow Cold gas flow Finite volume method Unstructured grids Spatial discretization schemes |
| title | An assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculations |
| title_full | An assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculations |
| title_fullStr | An assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculations |
| title_full_unstemmed | An assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculations |
| title_short | An assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculations |
| title_sort | assessment of unstructured grid finite volume schemes for cold gas hypersonic flow calculations |
| topic | Hypersonic flow Cold gas flow Finite volume method Unstructured grids Spatial discretization schemes |
| url | http://www.jatm.com.br/papers/vol1_n2/JATMv1n2_p135-152_An_assessment_of_unstructured_grid_finite_volume_schemes_for_cold_gas_hypersonic_flow_calculations.pdf |
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