WIT Press


A SCALED AIR BLAST MODEL FOR HIGH ALTITUDES

Price

Free (open access)

Paper DOI

10.2495/SUSI180041

Volume

180

Pages

6

Page Range

37 - 42

Published

2018

Author(s)

ZHENG WANG, JUN LIU, XIANGFEI GONG

Abstract

Based on Sachs scaling, an engineering computational model on air blast wave at high altitudes is presented in this paper. The model is built on analysis from numerical simulated pressure time data of shock wave in air. The model describes the peak overpressure, impulse, and typical time of the shock wave with new parameters. Comparison of pressure, density and velocity configuration for the different altitudes shows that the present engineering model can give consistent results with the numerical code. At last the scaled peak overpressure and the scaled impulse figure for the different altitudes are given for convenience of engineering application.

Keywords

blast wave, overpressure, numerical simulation