Accession Number : AD0837521

Title :   A THERMAL ANALYSIS OF AN ABLATING ELECTROMAGNETIC WINDOW.

Descriptive Note : Technical rept. Mar 67-Feb 68,

Corporate Author : AIR FORCE WEAPONS LAB KIRTLAND AFB NM

Personal Author(s) : Buggeln, Richard C.

Report Date : JUL 1968

Pagination or Media Count : 104

Abstract : A computer program is developed to determine the temperature profile in an electromagnetic window as a function of the point in the vehicle trajectory. The program was written in FORTRAN IV for the CDC 6600 computer. A study which examines the effect of independently varying the thermophysical properties of the window material, the convective heat transfer rate, the initial temperature profile in the window, and the computational node size is presented. The results of this study show that many of the above parameters have a considerable influence on design considerations of the electromagnetic window. (Author)

Descriptors :   *BLACKOUT(PROPAGATION)), (*REENTRY VEHICLES, ATTENUATION, THERMAL ANALYSIS, COMPUTER PROGRAMS, ABLATION, ATMOSPHERE ENTRY, DESCENT TRAJECTORIES, BORON COMPOUNDS, FLOW CHARTING, NITRIDES, SILICON DIOXIDE, REFRACTORY MATERIALS, HEAT TRANSFER, THERMAL PROPERTIES, WAVE PROPAGATION.

Subject Categories : Radiofrequency Wave Propagation
      Unmanned Spacecraft
      Spacecraft Trajectories and Reentry

Distribution Statement : APPROVED FOR PUBLIC RELEASE