Prediction of enhancement factor for small explosive sources in a stratified moving atmosphere

Abstract

A procedure for predicting attenuation from explosive sources, which employs an accurate ray tracing method, has been obtained. Ray tubes, each consisting of a group of four rays surrounding a central ray, are launched from an initial surface close to the source. An invariant property of the ray tubes is used to allow calculation of peak pressure attenuation between a sphere of radius 100 m, centered on the source, and given ground points. Comparisons of these predicted attenuations with measured values are presented.