Accession Number:

ADA023525

Title:

Natural Convection in an Enclosed Gas Heated by Local Laser Radiation

Descriptive Note:

Final rept. 1 Jan 1974-1 Dec 1975

Corporate Author:

AIR FORCE AERO PROPULSION LAB WRIGHT-PATTERSON AFB OH

Personal Author(s):

Report Date:

1976-03-01

Pagination or Media Count:

116.0

Abstract:

This report describes a technique by which the thermal effects of heating a gas by laser radiation absorption can be modelled. This is accomplished via a two-dimensional computer program which couples the equations of motion, energy, and continuity. The program models the convective motion of the gas during the irradiation period and predicts thermal and velocity distribution in the gas mixture. Any partially absorbing gas mixture can be considered, as long as sufficient thermophysical properties and absorption coefficients are known. Energy absorbed from the laser as a function of time can also be determined.

Subject Categories:

  • Fluid Mechanics
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE