Accession Number:

AD0742817

Title:

An Analysis of the Stability of Thin Liquid Films in Hypersonic Environments

Descriptive Note:

Corporate Author:

POLYTECHNIC INST OF BROOKLYN NY DEPT OF AEROSPACE ENGINEERING AND APPLIED MECHANICS

Personal Author(s):

Report Date:

1972-04-01

Pagination or Media Count:

43.0

Abstract:

The stability of thin liquid cooling films adjacent to high speed gas flows has been examined to determine its effect on the coolant requirements of hypersonic vehicles. The analysis is also applicable to surface films in high energy exhaust flows. Classical hydrodynamic stability theory was applied to the liquid film with boundary conditions corresponding to both supersonic and subsonic external streams. Instability mechanisms which coupled the disturbance motion of the gas to the disturbance motion of the liquid were of primary interest and those involving energy transfer from the basic flow were specifically excluded. Numerical solutions as well as exact and approximate analytical solutions were developed.

Subject Categories:

  • Guided Missile Reentry Vehicles

Distribution Statement:

APPROVED FOR PUBLIC RELEASE