Título:	Combustion instability for hybrid rocket motors with a diaphragm
Autor(es):	Lee, Jungpyo Rhee, Sunjae Kim, Jinkon Moon, Heejang Shynkarenko, Olexiy Simone, Domenico Morita, Takakazu
Assunto:	Motores de foguetes Câmaras de combustão
Data de publicação:	2019
Editora:	EUCASS association
Referência:	LEE, Jungpyo et al. Combustion instability for hybrid rocket motors with a diaphragm. In: EUROPEAN CONFERENCE FOR AERONAUTICS AND SPACE SCIENCES, 8., 2019, Madrid. Proceedings [...]. Madrid: EUCASS association, 2019. DOI: 10.13009/EUCASS2019-462. Disponível em: https://www.eucass.eu/index.php/conferences-and-publications/search-in-publications?searchword=eucass/2019&searchphrase=all&limit=20&areas[0]=doc_indexer&start=240. Acesso em: 02 dez. 2019.
Abstract:	A diaphragm has been used to enhance fuel regression rate and combustion efficiency in hybrid rockets. On the other hand, it has been observed that significant pressure oscillations occurred. In this paper, main factor on the excitation of the instability was studied. Lab-scale firing tests considering the various experimental conditions, such as the diaphragm location and diameter, were conducted, and combustion visualization tests were performed to confirm the instability mechanism. The excitation source of the pressure oscillations was the edge-tone instability. Finally, a new grain which had high regression rate and also was stable combustion was proposed.
Unidade Acadêmica:	Faculdade UnB Gama (FGA)
DOI:	10.13009/EUCASS2019-462
Versão da editora:	https://www.eucass.eu/index.php/conferences-and-publications/search-in-publications?searchword=eucass/2019&searchphrase=all&limit=20&areas[0]=doc_indexer&start=240
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