Accession Number : ADA220154


Title :   Large Blast and Thermal Simulator Reflected Wave Eliminator Study


Descriptive Note : Final rept. Sep 1986-Sep 1987


Corporate Author : DAYTON UNIV OH RESEARCH INST


Personal Author(s) : Butz, James ; Kuna, Moshe ; Guice, Robert L ; Gottlieb, James J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a220154.pdf


Report Date : Mar 1990


Pagination or Media Count : 104


Abstract : The design of a reflected wave eliminator (RWE) for the Large Blast/ Thermal Simulator was investigated. Activities were divided into two categories, theoretical and computer modeled analysis, and conceptual design of RWE candidate configurations. The design effort was concentrated on active REWs where the open area changes over the time of the blast wave simulation. The computer analysis served to determine the rate of these area changes. Three different concepts were evaluated for the design of an active RWE. Stresses were analyzed and the power requirements to properly move the RWE during the passage of the blast wave were estimated. Two louver concepts were found to be lighter weight and more easily moved than a radial fan concept. A rotating louver design was recommended for further study. In addition, vents in the side wall of the LB/TS near the RWE were recommended in order to provide the maximum open area needed. Keywords: Large blast thermal simulator; Blast wave simulator; Rarefraction wave eliminator; Blast wave shaping; Shock tube flow; Wave reflections; Comp. fluid dynamics.


Descriptors :   *SHOCK TUBES , *NUCLEAR EXPLOSION SIMULATION , *BLAST WAVES , SHAPE , REFLECTION , CONFIGURATIONS , WALLS , COMPUTER APPLICATIONS , FANS , POWER , FLUID DYNAMICS , BLAST , THERMAL RADIATION , REQUIREMENTS , VENTS , STRESSES , SIMULATORS


Subject Categories : Test Facilities, Equipment and Methods
      Explosions
      Nuclear Weapons


Distribution Statement : APPROVED FOR PUBLIC RELEASE