Feasibility Study of Shock Wave Modification in the BRL 2.44 m Blast Simulator

摘要

Four types of driver sections (short driver, baffled driver, single pipe, and multiple pipe driver) were designed and tested on a 1/48th scale model of the BRL 2.44 m shock tube. Pressures were monitored along the test section with piezoelectric transducers to determine waveshape as a function of drivers. Pressure-time waveforms are compared to computer predictions produced by the NASA-Ames one-dimensional hydrocode. Predictions are given for the performance of the BRL 2.44 m shock tube when suitably modified.