OPERATION CYCLE OF EXPANSION TUBE WITH NOZZLE PLATE.
BALLISTIC RESEARCH LABS ABERDEEN PROVING GROUND MD
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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
- Test Facilities, Equipment and Methods