Aerothermodynamic analysis of an experimental rocket aimed to test micro-launcher technologies
Main Author: | |
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Publication Date: | 2022 |
Format: | Master thesis |
Language: | eng |
Source: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Download full: | http://hdl.handle.net/10400.6/13027 |
Summary: | The current decrease in satellite size, associated with the rise in their launch rates, has created a market demand for a new class of launchers. This new class, known as micro launchers, can only put a fraction of the current launcher’s payload into orbit but can deliver micro and small satellites to their desired orbit for a fraction of the price. Due to this new demand, the European Space Agency has supported this market trend with programs that enable the development of the necessary technologies for these future micro-launchers. In this context, Omnidea leads a project to develop an experimental vehicle that aims at developing and testing these technologies in a relevant flight environment. The development of this dissertation is in the framework of this project and focus on performing an aerothermodynamic analysis of the experimental rocket through numerical simulations in subsonic, transonic and supersonic flight. These numerical simulations are performed for two different geometries, and one additional study case is dedicated to the engine on condition. The results are then used for an aerodynamic and thermodynamic study of the vehicle and, when possible, are compared to similar studies with a satisfactory agreement. Furthermore, is discussed the impact that the alterations between the rocket geometry have on the flow around the vehicle, and their cause, as well as their consequences, are pointed out. Regarding the engine on condition, it is possible to see the creation of several new flow disturbances and their impact on the thermodynamic and aerodynamic models. Additionally, some concerns about these new flow disturbances are raised, and suggestions are made for their correction. At last, this study also shows the CFD’s key role in providing data for the construction of aerothermodynamic databases of spacecraft. |
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Aerothermodynamic analysis of an experimental rocket aimed to test micro-launcher technologiesAerotermodinâmicaCfdEscoamento SubsónicoEscoamento SupersónicoEscoamento TransónicoFogueteMicro-LançadorNave EspacialOpenfoamDomínio/Área Científica::Engenharia e Tecnologia::Engenharia AeronáuticaThe current decrease in satellite size, associated with the rise in their launch rates, has created a market demand for a new class of launchers. This new class, known as micro launchers, can only put a fraction of the current launcher’s payload into orbit but can deliver micro and small satellites to their desired orbit for a fraction of the price. Due to this new demand, the European Space Agency has supported this market trend with programs that enable the development of the necessary technologies for these future micro-launchers. In this context, Omnidea leads a project to develop an experimental vehicle that aims at developing and testing these technologies in a relevant flight environment. The development of this dissertation is in the framework of this project and focus on performing an aerothermodynamic analysis of the experimental rocket through numerical simulations in subsonic, transonic and supersonic flight. These numerical simulations are performed for two different geometries, and one additional study case is dedicated to the engine on condition. The results are then used for an aerodynamic and thermodynamic study of the vehicle and, when possible, are compared to similar studies with a satisfactory agreement. Furthermore, is discussed the impact that the alterations between the rocket geometry have on the flow around the vehicle, and their cause, as well as their consequences, are pointed out. Regarding the engine on condition, it is possible to see the creation of several new flow disturbances and their impact on the thermodynamic and aerodynamic models. Additionally, some concerns about these new flow disturbances are raised, and suggestions are made for their correction. At last, this study also shows the CFD’s key role in providing data for the construction of aerothermodynamic databases of spacecraft.A atual diminuição na dimensão dos satélites, associada a um aumento do seu número de lançamentos, criou uma procura no mercado por uma nova classe de lançadores espaciais. Esta nova classe, é denominada por micro-lançadores, e apesar de só poder colocar em órbita uma fração da carga útil dos lançadores atuais, consegue transportar micro e pequenos satélites até à órbita desejada por uma fração do preço. Devido a esta nova procura, a Agência Espacial Europeia tem suportado esta tendência do mercado com programas que permitam desenvolver as tecnologias necessárias para estes futuros micro-lançadores. Neste contexto, a Omnidea lidera um projecto de desenvolvimento de um veículo experimental que tem como objectivo desenvolver e testar estas tecnologias num ambiente relevante de voo. O desenvolvimento desta dissertação insere-se no âmbito deste projeto e tem como principal objetivo a realização de análises aerotermodinâmicas do foguete experimental através de simulações numéricas em voo subsónico, transónico e supersónico. Estas simulações numéricas são ainda realizadas para duas geometrias diferentes, e um caso de estudo adicional é dedicado à condição do foguete com o motor em funcionamento. A partir dos resultados obtidos é então realizado um estudo aerodinâmico e termodinâmico do veículo e, quando possível, os resultados são comparados com estudos semelhantes onde é verificada uma correlação satisfatória. Além disso, é discutido o impacto que as alterações entre as geometrias do foguete têm no escoamento ao redor do veículo, e a sua causa, bem como as suas consequências, são destacadas. Em relação à condição com o motor em funcionamento, é possível observar a criação de vários novos distúrbios no escoamento bem como as suas repercussões nos modelos termodinâmicos e aerodinâmicos. Como tal, algumas preocupações sobre as novas perturbações no escoamento são levantadas e algumas sugestões para a sua correção são feitas. Por fim, este estudo demonstra ainda o papel fundamental que o CFD desempenha no fornecimento de dados para a construção de bases de dados aerotermodinâmicas de naves espaciais.Brojo, Francisco Miguel Ribeiro ProençaCoelho, Tiago Marchão Moreira; João Alexandre AbreuuBibliorumVale, João Pedro Simões2023-02-20T09:26:12Z2022-11-252022-10-062022-11-25T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.6/13027TID:203225554enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-12-15T09:56:27Zoai:ubibliorum.ubi.pt:10400.6/13027Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T00:52:32.717747Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Aerothermodynamic analysis of an experimental rocket aimed to test micro-launcher technologies |
title |
Aerothermodynamic analysis of an experimental rocket aimed to test micro-launcher technologies |
spellingShingle |
Aerothermodynamic analysis of an experimental rocket aimed to test micro-launcher technologies Vale, João Pedro Simões Aerotermodinâmica Cfd Escoamento Subsónico Escoamento Supersónico Escoamento Transónico Foguete Micro-Lançador Nave Espacial Openfoam Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Aeronáutica |
title_short |
Aerothermodynamic analysis of an experimental rocket aimed to test micro-launcher technologies |
title_full |
Aerothermodynamic analysis of an experimental rocket aimed to test micro-launcher technologies |
title_fullStr |
Aerothermodynamic analysis of an experimental rocket aimed to test micro-launcher technologies |
title_full_unstemmed |
Aerothermodynamic analysis of an experimental rocket aimed to test micro-launcher technologies |
title_sort |
Aerothermodynamic analysis of an experimental rocket aimed to test micro-launcher technologies |
author |
Vale, João Pedro Simões |
author_facet |
Vale, João Pedro Simões |
author_role |
author |
dc.contributor.none.fl_str_mv |
Brojo, Francisco Miguel Ribeiro Proença Coelho, Tiago Marchão Moreira; João Alexandre Abreu uBibliorum |
dc.contributor.author.fl_str_mv |
Vale, João Pedro Simões |
dc.subject.por.fl_str_mv |
Aerotermodinâmica Cfd Escoamento Subsónico Escoamento Supersónico Escoamento Transónico Foguete Micro-Lançador Nave Espacial Openfoam Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Aeronáutica |
topic |
Aerotermodinâmica Cfd Escoamento Subsónico Escoamento Supersónico Escoamento Transónico Foguete Micro-Lançador Nave Espacial Openfoam Domínio/Área Científica::Engenharia e Tecnologia::Engenharia Aeronáutica |
description |
The current decrease in satellite size, associated with the rise in their launch rates, has created a market demand for a new class of launchers. This new class, known as micro launchers, can only put a fraction of the current launcher’s payload into orbit but can deliver micro and small satellites to their desired orbit for a fraction of the price. Due to this new demand, the European Space Agency has supported this market trend with programs that enable the development of the necessary technologies for these future micro-launchers. In this context, Omnidea leads a project to develop an experimental vehicle that aims at developing and testing these technologies in a relevant flight environment. The development of this dissertation is in the framework of this project and focus on performing an aerothermodynamic analysis of the experimental rocket through numerical simulations in subsonic, transonic and supersonic flight. These numerical simulations are performed for two different geometries, and one additional study case is dedicated to the engine on condition. The results are then used for an aerodynamic and thermodynamic study of the vehicle and, when possible, are compared to similar studies with a satisfactory agreement. Furthermore, is discussed the impact that the alterations between the rocket geometry have on the flow around the vehicle, and their cause, as well as their consequences, are pointed out. Regarding the engine on condition, it is possible to see the creation of several new flow disturbances and their impact on the thermodynamic and aerodynamic models. Additionally, some concerns about these new flow disturbances are raised, and suggestions are made for their correction. At last, this study also shows the CFD’s key role in providing data for the construction of aerothermodynamic databases of spacecraft. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-11-25 2022-10-06 2022-11-25T00:00:00Z 2023-02-20T09:26:12Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.6/13027 TID:203225554 |
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eng |
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eng |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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