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An investigation of the side force that is sometimes observed in rocket start-upThe occurrence of a large but momentary side force during the start-up of rocket motors employing convergent-divergent nozzles has been noted occasionally. Asymmetric flow separation within the divergent section of the nozzle is proposed as the principal source of this lateral force. A method for estimating this force and its concomitant lateral impulse is outlined, and results obtained by applying the method to Scout vehicle first-, second-, and third-stage rocket motor start-ups are presented and compared with similar estimates that other researchers obtained by a different method.
Document ID
19780059662
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bowyer, J. M., Jr.
(California Institute of Technology, Jet Propulsion Laboratory, Control and Energy Conversion Div., Pasadena Calif., United States)
Kreiter, G. W.
(Vought Corp. Dallas, Tex., United States)
Petersen, R. E.
(Arizona, University Tucson, Ariz., United States)
Date Acquired
August 9, 2013
Publication Date
July 1, 1978
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
AIAA PAPER 78-1045
Meeting Information
Meeting: Joint Propulsion Conference
Location: Las Vegas, NV
Country: US
Start Date: July 25, 1978
End Date: July 27, 1978
Sponsors: American Institute of Aeronautics and Astronautics, Society of Automotive Engineers
Accession Number
78A43571
Distribution Limits
Public
Copyright
Other

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