Evaluation Method of C* Efficiency of Swirling-Oxidizer-Flow-Type Hybrid Rocket Engines

Autor:	Takashi Sakurai, Masafumi Sakamoto, Saburo Yuasa, Noriko Shiraishi, Kousuke Hirata, Chinatsu Sezaki
Rok vydání:	2011
Předmět:	Centrifugal force Materials science business.product_category Field (physics) business.industry Nozzle Flow (psychology) Mechanics Characteristic velocity Rocket Specific impulse Aerospace engineering Combustion chamber business
Zdroj:	JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES. 59:97-101
ISSN:	1344-6460
DOI:	10.2322/jjsass.59.97
Popis:	The characteristic velocity C* is derived from the assumption of one-dimensional flow in a uniform pressure field, and is usually evaluated using a combustion chamber pressure measured on the chamber wall. In the swirling-oxidizer-flow-type hybrid rocket engines, the C* efficiency in excess of 1.0 was sometimes measured due to an increased wall pressure in the centrifugal force field of the swirling flow. It was induced that the specific impulse efficiency was useful to evaluate the C* efficiency accurately without using the combustion chamber pressure when the CF efficiency was given. This evaluation method of the C* efficiency was confirmed to be appropriate and available by the burning tests using the swirling-oxidizer-flow-type hybrid rocket engines with optimum expanding nozzles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a16eebd85da4eb583d85cd9f9521d6c0 https://doi.org/10.2322/jjsass.59.97 Zobrazit plný text záznamu