COMPARISONS BETWEEN FAST SHOCK TUBE CALCULATIONS AND TESTS

Autor: John K. Meier, Jerry F. Kerrisk
Rok vydání: 1992
Předmět:
DOI: 10.1016/b978-0-444-89732-9.50242-9
Popis: Tests have been done to diagnose various aspects of the behavior of the shocked foam in the core of the fast shock tube. Calculations and test results of shock behavior in the foam are in good agreement. However, calculations with different foam equations of state differ in some details. Precursor shocks at the foam/HE interface were observed in some tests; a modified assembly procedure eliminated this problem. Calculations of shape and velocity of plates in direct contact with the foam are in relatively good agreement. Expansion of shocked foam down a barrel is complicated by perturbations from the barrel inlet and from deformed regions of the barrel. In one test, a 2.5-cm diameter by 2-mm thick stainless steel plate was accelerated to 0.78 cm/μs and remained planar for a 55-cm run through air.
Databáze: OpenAIRE