HEAT TRANSFER IN A CHANNEL WITH A POROUS WALL FOR TURBINE COOLING APPLICATION

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 numbers for a power-law surface-temperature variation are obtained and expressed in terms of the Prandtl and the Reynolds numbers. A related problem of cooling the turbine disk is also solved.

• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • Debruge, L L
  • Han, L S
• Publication Date: 1972-11

Media Info

• Features: References;
• Pagination: p. 385-390
• Serial:
  • ASME Journal of Heat Transfer
  • Volume: 94
  • Issue Number: 4
  • Publisher: American Society of Mechanical Engineers

Subject/Index Terms

• TRT Terms: Blades (Machinery); Flow fields; Heat transfer
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00041817
• Record Type: Publication
• Source Agency: United States Merchant Marine Academy
• Report/Paper Numbers: Series C
• Files: TRIS
• Created Date: Mar 19 1973 12:00AM