期刊
FLOW MEASUREMENT AND INSTRUMENTATION
卷 41, 期 -, 页码 97-103出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.flowmeasinst.2014.09.008
关键词
Cavitating venturi; Flow control; Cryogenics; Liquid oxygen; Liquid methane; Reaction control thruster
资金
- NASA [NNX09AV09A]
- NASA [NNX09AV09A, 107437] Funding Source: Federal RePORTER
This study details the design and performance characterization for a cryogenic cavitating venturi. This flow control system is intended for mass flow regulation of cryogenic propellants, such as liquid oxygen and liquid methane, in reaction control propulsion systems. Through in situ flow tests, the discharge coefficient for the venturi was calculated and utilized to determine the mass flow rate for specified inlet pressures of the propellants. The test results revealed that the cavitating venturi indeed performed as a flow rate control feature in both liquid water and LCH4 flow under a steady state operating within pressure ratios below 0.69. (C) 2014 Elsevier Ltd. All rights reserved.
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