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Analysis of cold flow reestablishment time in a circuit breaker nozzleThe deblocking process in a circuit breaker nozzle is similar to the flow starting process in a shock tunnel, and the computer uses this analogy to solve for the deblocking process by utilizing a diaphragm at the throat of a nozzle. At time equal to zero the diaphragm is broken and the throat area increases with time. It is a rarity to have the area as a function of both time and distance. Experimental data obtained from the RPI calibration shock tunnel are utilized to verify some of the calculated results with the area being a function of distance and the agreement is found to be good. The circuit breaker designer can utilize the computer simulation to estimate the deblocking time, an important parameter in the design of circuit breakers.
Document ID
19830056006
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Leone, S. A.
(USAF, Institute of Technology, Wright-Patterson AFB OH, United States)
Nagamatsu, H. T.
(Rensselaer Polytechnic Institute, Troy, NY, United States)
Date Acquired
August 11, 2013
Publication Date
July 1, 1983
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
AIAA PAPER 83-1749
Accession Number
83A37224
Funding Number(s)
CONTRACT_GRANT: NSF MEA-80-06806
Distribution Limits
Public
Copyright
Other

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