Accession Number:

AD0758782

Title:

Velocity and Heat Transfer Analysis in Channels with a Porous Wall.

Descriptive Note:

Technical rept. Apr-Jun 71,

Corporate Author:

AIR FORCE AERO PROPULSION LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1972-09-01

Pagination or Media Count:

97.0

Abstract:

A method of cooling turbine blades internally by continuous injection through an interior baffle is analyzed. The analytical model consists of a two-dimensional channel formed by a solid wall blade surface and a porous plate injection source. Based on incompressible and laminar flow assumptions the velocity and the temperature fields are determined. The Nusselt number for a power-law surface temperature variation is obtained and expressed in terms of the Prandtl and Reynolds numbers. The related problem of cooling the turbine disc is also solved. Author

Subject Categories:

  • Jet and Gas Turbine Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE