An Analytical Study of Hypersonic Inlets in Free-Molecule Flow

A report is made of an analytical study of free-molecule, hypervelocity air inlet configurations which might be used to supply gas for ion engines aboard satellites. The basic equations for the inlet are developed based upon gas-surface interactions. These equations are numerically solved for variou...

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Bibliographic Details
Main Authors: Kinslow, Max, Busby, M R
Format: Report
Language:English
Subjects:
ARTIFICIAL SATELLITES
CONFIGURATIONS
DUCT INLETS
EFFICIENCY
Electric and Ion Propulsion
FREE MOLECULE FLOW
GAS FLOW
GASES
HYPERSONIC CHARACTERISTICS
INTERACTIONS
ION ENGINES
NUMERICAL METHODS AND PROCEDURES
PE35802F
SURFACE PROPERTIES
SURFACES
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Summary:A report is made of an analytical study of free-molecule, hypervelocity air inlet configurations which might be used to supply gas for ion engines aboard satellites. The basic equations for the inlet are developed based upon gas-surface interactions. These equations are numerically solved for various gas-surface interaction parameters. Based upon these inlets, ion rocket performance is determined for various efficiencies. Prepared in cooperation with ARO, Inc., Tullahoma, Tenn. Rept. no. ARO-VKF-TR-72-202.