Influence of catalytic wall on the effective radius of a blunt body geometry in a nonequilibrium hypersonic flow
The effect of the surface catalycity on the effective radius of a blunt body geometry in hypersonic flow is numerically investigated. The blunt body geometry is defined in terms of a body radius with variation in both nose radius and the corner radius. Five different types of blunt body configuratio...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-07-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X22003318 |
| _version_ | 1817980538215989248 |
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| author | Yosheph Yang Sanghoon Lee Jae Gang Kim |
| author_facet | Yosheph Yang Sanghoon Lee Jae Gang Kim |
| author_sort | Yosheph Yang |
| collection | DOAJ |
| description | The effect of the surface catalycity on the effective radius of a blunt body geometry in hypersonic flow is numerically investigated. The blunt body geometry is defined in terms of a body radius with variation in both nose radius and the corner radius. Five different types of blunt body configurations are considered, that range from a flat-faced to a complete hemisphere geometry. The chosen blunt body configurations are investigated for four flow conditions with different levels of flow enthalpy. The effective radius is obtained by comparing the stagnation heat transfer of the blunt body geometry to that of the spherical geometry. To compute the stagnation heat transfer in the given blunt body configuration, a two-dimensional computational fluid dynamics (CFD) solver with thermochemical non-equilibrium is utilized. Both non-catalytic and fully-catalytic wall boundary conditions are considered in the computation. The obtained effective radius is additionally compared with the original data provided in the literature. The results show that surface catalycity influences the effective radius for the given blunt body configuration. |
| first_indexed | 2024-04-13T22:54:51Z |
| format | Article |
| id | doaj.art-4e57020a5843433094a69f9687a3273f |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-04-13T22:54:51Z |
| publishDate | 2022-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-4e57020a5843433094a69f9687a3273f2022-12-22T02:26:04ZengElsevierCase Studies in Thermal Engineering2214-157X2022-07-0135102085Influence of catalytic wall on the effective radius of a blunt body geometry in a nonequilibrium hypersonic flowYosheph Yang0Sanghoon Lee1Jae Gang Kim2Department of Aerospace Engineering, Sejong University, Seoul, 05006, Republic of KoreaDepartment of Aerospace Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of KoreaDepartment of Aerospace System Engineering, Sejong University, Seoul, 05006, Republic of Korea; Corresponding author.The effect of the surface catalycity on the effective radius of a blunt body geometry in hypersonic flow is numerically investigated. The blunt body geometry is defined in terms of a body radius with variation in both nose radius and the corner radius. Five different types of blunt body configurations are considered, that range from a flat-faced to a complete hemisphere geometry. The chosen blunt body configurations are investigated for four flow conditions with different levels of flow enthalpy. The effective radius is obtained by comparing the stagnation heat transfer of the blunt body geometry to that of the spherical geometry. To compute the stagnation heat transfer in the given blunt body configuration, a two-dimensional computational fluid dynamics (CFD) solver with thermochemical non-equilibrium is utilized. Both non-catalytic and fully-catalytic wall boundary conditions are considered in the computation. The obtained effective radius is additionally compared with the original data provided in the literature. The results show that surface catalycity influences the effective radius for the given blunt body configuration.http://www.sciencedirect.com/science/article/pii/S2214157X22003318Blunt bodyEffective radiusCatalytic wallHypersonic nonequilibirium flow |
| spellingShingle | Yosheph Yang Sanghoon Lee Jae Gang Kim Influence of catalytic wall on the effective radius of a blunt body geometry in a nonequilibrium hypersonic flow Case Studies in Thermal Engineering Blunt body Effective radius Catalytic wall Hypersonic nonequilibirium flow |
| title | Influence of catalytic wall on the effective radius of a blunt body geometry in a nonequilibrium hypersonic flow |
| title_full | Influence of catalytic wall on the effective radius of a blunt body geometry in a nonequilibrium hypersonic flow |
| title_fullStr | Influence of catalytic wall on the effective radius of a blunt body geometry in a nonequilibrium hypersonic flow |
| title_full_unstemmed | Influence of catalytic wall on the effective radius of a blunt body geometry in a nonequilibrium hypersonic flow |
| title_short | Influence of catalytic wall on the effective radius of a blunt body geometry in a nonequilibrium hypersonic flow |
| title_sort | influence of catalytic wall on the effective radius of a blunt body geometry in a nonequilibrium hypersonic flow |
| topic | Blunt body Effective radius Catalytic wall Hypersonic nonequilibirium flow |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X22003318 |
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