Analytical/numerical hybrid solution for one-dimensional ablation problem
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1115/HT2003-47174 http://hdl.handle.net/11449/67499 |
Resumo: | Ablation is a thermal protection process with several applications in engineering, mainly in the field of airspace industry. The use of conventional materials must be quite restricted, because they would suffer catastrophic flaws due to thermal degradation of their structures. However, the same materials can be quite suitable once being protected by well-known ablative materials. The process that involves the ablative phenomena is complex, could involve the whole or partial loss of material that is sacrificed for absorption of energy. The analysis of the ablative process in a blunt body with revolution geometry will be made on the stagnation point area that can be simplified as a one-dimensional plane plate problem, hi this work the Generalized Integral Transform Technique (GITT) is employed for the solution of the non-linear system of coupled partial differential equations that model the phenomena. The solution of the problem is obtained by transforming the non-linear partial differential equation system to a system of coupled first order ordinary differential equations and then solving it by using well-established numerical routines. The results of interest such as the temperature field, the depth and the rate of removal of the ablative material are presented and compared with those ones available in the open literature. |
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Analytical/numerical hybrid solution for one-dimensional ablation problemGeneralized integral transform technique (GITT)Thermal protectionsAbsorptionAerospace engineeringBoundary conditionsHeat fluxHeat transferMass transferOrdinary differential equationsPartial differential equationsPyrolysisSpecific heatAblationAblation is a thermal protection process with several applications in engineering, mainly in the field of airspace industry. The use of conventional materials must be quite restricted, because they would suffer catastrophic flaws due to thermal degradation of their structures. However, the same materials can be quite suitable once being protected by well-known ablative materials. The process that involves the ablative phenomena is complex, could involve the whole or partial loss of material that is sacrificed for absorption of energy. The analysis of the ablative process in a blunt body with revolution geometry will be made on the stagnation point area that can be simplified as a one-dimensional plane plate problem, hi this work the Generalized Integral Transform Technique (GITT) is employed for the solution of the non-linear system of coupled partial differential equations that model the phenomena. The solution of the problem is obtained by transforming the non-linear partial differential equation system to a system of coupled first order ordinary differential equations and then solving it by using well-established numerical routines. The results of interest such as the temperature field, the depth and the rate of removal of the ablative material are presented and compared with those ones available in the open literature.State University of São Paulo Department of Mechanical Engineering UNESP/FEIS/DEMState University of São Paulo Department of Mechanical Engineering UNESP/FEIS/DEMUniversidade Estadual Paulista (Unesp)Kurokawa, Fábio Yukio [UNESP]Diniz, Antonio João [UNESP]Campos-Silva, João Batista [UNESP]2014-05-27T11:20:57Z2014-05-27T11:20:57Z2003-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject773-780http://dx.doi.org/10.1115/HT2003-47174Proceedings of the ASME Summer Heat Transfer Conference, v. 2003, p. 773-780.http://hdl.handle.net/11449/6749910.1115/HT2003-471742-s2.0-18427293454070214532679208Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengProceedings of the ASME Summer Heat Transfer Conferenceinfo:eu-repo/semantics/openAccess2024-07-04T20:06:35Zoai:repositorio.unesp.br:11449/67499Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:10:45.068381Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Analytical/numerical hybrid solution for one-dimensional ablation problem |
title |
Analytical/numerical hybrid solution for one-dimensional ablation problem |
spellingShingle |
Analytical/numerical hybrid solution for one-dimensional ablation problem Kurokawa, Fábio Yukio [UNESP] Generalized integral transform technique (GITT) Thermal protections Absorption Aerospace engineering Boundary conditions Heat flux Heat transfer Mass transfer Ordinary differential equations Partial differential equations Pyrolysis Specific heat Ablation |
title_short |
Analytical/numerical hybrid solution for one-dimensional ablation problem |
title_full |
Analytical/numerical hybrid solution for one-dimensional ablation problem |
title_fullStr |
Analytical/numerical hybrid solution for one-dimensional ablation problem |
title_full_unstemmed |
Analytical/numerical hybrid solution for one-dimensional ablation problem |
title_sort |
Analytical/numerical hybrid solution for one-dimensional ablation problem |
author |
Kurokawa, Fábio Yukio [UNESP] |
author_facet |
Kurokawa, Fábio Yukio [UNESP] Diniz, Antonio João [UNESP] Campos-Silva, João Batista [UNESP] |
author_role |
author |
author2 |
Diniz, Antonio João [UNESP] Campos-Silva, João Batista [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Kurokawa, Fábio Yukio [UNESP] Diniz, Antonio João [UNESP] Campos-Silva, João Batista [UNESP] |
dc.subject.por.fl_str_mv |
Generalized integral transform technique (GITT) Thermal protections Absorption Aerospace engineering Boundary conditions Heat flux Heat transfer Mass transfer Ordinary differential equations Partial differential equations Pyrolysis Specific heat Ablation |
topic |
Generalized integral transform technique (GITT) Thermal protections Absorption Aerospace engineering Boundary conditions Heat flux Heat transfer Mass transfer Ordinary differential equations Partial differential equations Pyrolysis Specific heat Ablation |
description |
Ablation is a thermal protection process with several applications in engineering, mainly in the field of airspace industry. The use of conventional materials must be quite restricted, because they would suffer catastrophic flaws due to thermal degradation of their structures. However, the same materials can be quite suitable once being protected by well-known ablative materials. The process that involves the ablative phenomena is complex, could involve the whole or partial loss of material that is sacrificed for absorption of energy. The analysis of the ablative process in a blunt body with revolution geometry will be made on the stagnation point area that can be simplified as a one-dimensional plane plate problem, hi this work the Generalized Integral Transform Technique (GITT) is employed for the solution of the non-linear system of coupled partial differential equations that model the phenomena. The solution of the problem is obtained by transforming the non-linear partial differential equation system to a system of coupled first order ordinary differential equations and then solving it by using well-established numerical routines. The results of interest such as the temperature field, the depth and the rate of removal of the ablative material are presented and compared with those ones available in the open literature. |
publishDate |
2003 |
dc.date.none.fl_str_mv |
2003-12-01 2014-05-27T11:20:57Z 2014-05-27T11:20:57Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1115/HT2003-47174 Proceedings of the ASME Summer Heat Transfer Conference, v. 2003, p. 773-780. http://hdl.handle.net/11449/67499 10.1115/HT2003-47174 2-s2.0-1842729345 4070214532679208 |
url |
http://dx.doi.org/10.1115/HT2003-47174 http://hdl.handle.net/11449/67499 |
identifier_str_mv |
Proceedings of the ASME Summer Heat Transfer Conference, v. 2003, p. 773-780. 10.1115/HT2003-47174 2-s2.0-1842729345 4070214532679208 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Proceedings of the ASME Summer Heat Transfer Conference |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
773-780 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128475688599552 |