Accession Number : AD0717090

Title :   A Feasibility Study of Nuclear Fireball Simulation.

Descriptive Note : Final rept.,

Corporate Author : PHYSICS INTERNATIONAL CO SAN LEANDRO CALIF

Personal Author(s) : Baum,D. W. ; Gill,S. P.

Report Date : NOV 1970

Pagination or Media Count : 46

Abstract : The report describes the initial phase of an experimental program designed to assess the feasibility of simulating the thermal environment of a high-temperature nuclear fireball. A high-performance, explosively driven shock tube is used to produce temperatures from 10,000 K to 100,000 K in xenon gas. The Boltzmann number and optical depth in the gas are chosen to match the fireball environment. Radiative energy transfer dominates conductive and convective processes in a nuclear fireball (as measured by the Boltzmann number), so that it is possible to achieve fireball simulation with a gas other than air. Xenon was chosen for its thermodynamic compatibility with state-of-the-art explosively driven shock tubes. The fireball simulator is primarily useful in providing a definitive experimental test of prediction codes for fireball thermal effects, for obtaining data on the energy-transport properties of ablated surface materials, and for developing and testing fireball instrumentation concepts. (Author)

Descriptors :   (*NUCLEAR EXPLOSIONS, SIMULATION), SIMULATORS, SHOCK TUBES, THERMAL PROPERTIES, BLACKBODY RADIATION, HIGH TEMPERATURE, XENON, FEASIBILITY STUDIES

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE