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Record Details

Record 35 of 600
Studies of solid propellant combustion with pulsed radiography
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Author and Affiliation:
Godai, T.(NASA, Washington, DC, United States)
Tanemura, T.(NASA, Washington, DC, United States)
Fujiwara, T.(NASA, Washington, DC, United States)
Shimizu, M.(NASA, Washington, DC, United States)
Abstract: Pulsed radiography was applied to observe solid propellant surface regression during rocket motor operation. Using a 150 KV flash X-ray system manufactured by the Field Emission Corporation and two kinds of film suppliers, images of the propellant surface of a 5 cm diameter end burning rocket motor were recorded on film. The repetition frame rate of 8 pulses per second and the pulse train length of 10 pulses are limited by the capability of the power supply and the heat build up within the X-ray tube, respectively. The experiment demonstrated the effectiveness of pulsed radiography for observing solid propellant surface regression. Measuring the position of burning surface images on film with a microdensitometer, quasi-instantaneous burning rate as a function of pressure and the variation of characteristic velocity with pressure and gas stay time were obtained. Other research items to which pulsed radiography can be applied are also suggested.
Publication Date: Aug 01, 1987
Document ID:
19870017626
(Acquired Nov 04, 1995)
Accession Number: 87N27059
Subject Category: PROPELLANTS AND FUELS
Report/Patent Number: NASA-TT-20081, NAS 1.77:20081
Document Type: Technical Report
Publisher Information: United States
Contract/Grant/Task Num: NASW-4005
Financial Sponsor: NASA; United States
Organization Source: NASA; Washington, DC, United States
Description: 31p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution as joint owner in the copyright
NASA Terms: PROPELLANT COMBUSTION; RADIOGRAPHY; SOLID ROCKET PROPELLANTS; SURFACE REACTIONS; BURNING RATE; PHOTOGRAPHIC MEASUREMENT; PRESSURE; PULSE REPETITION RATE
Imprint And Other Notes: Transl. into ENGLISH OF Parusu Xsen Kanketsu Syashinho Niyoru Kotal Puroperanto no Nensyou Nikansuru Kenkya, Tokyo, Japan, National Aerospace Lab., Sept. 1978
Miscellaneous Notes: Transl. by Kanner (Leo) Associates, Redwood City, Calif. Original document prepared by Aerospace Research Group
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