Accession Number : AD0689540
Title : OPERATION CYCLE OF EXPANSION TUBE WITH NOZZLE PLATE.
Descriptive Note : Memorandum rept.,
Corporate Author : BALLISTIC RESEARCH LABS ABERDEEN PROVING GROUND MD
Personal Author(s) : Gerber,Nathan ; Bartos,Joan M.
Report Date : JUN 1969
Pagination or Media Count : 32
Abstract : The report presents an analysis of the operation cycle of an expansion tube with a nozzle plate located at the secondary diaphragm. Analyses are given for two situations: (1) the secondary diaphragm breaks instantly, and (2) it breaks after a delay due to finite mass. Equations are developed applicable to real gas in thermodynamic equilibrium in the driven and expansion sections of the tube. A discussion of numerical and graphical computational procedures is presented and calculations for air are shown for cases representative of operating conditions. (Author)
Descriptors : (*SHOCK TUBES, OPERATION), (*NOZZLE CLOSURES, SHOCK TUBES), THERMODYNAMICS, NUMERICAL ANALYSIS, NOZZLE THROATS, REFLECTION, NOZZLE GAS FLOW, NOZZLE AREA RATIO
Subject Categories : Test Facilities, Equipment and Methods
Distribution Statement : APPROVED FOR PUBLIC RELEASE