HEAT TRANSFER PROBLEMS IN ADVANCED GAS TURBINES FOR NAVAL APPLICATIONS

The report covers heat exchanger studies stressing measurements of local heat transfer coefficients by a method based on the heat and mass transfer analogy. Local ablation rates are obtained on a model covered with napthalene and from these heat transfer rates are deduced through the analogy. Impingement cooling and porous wall heat transfer have also been investigated. A number of studies in film cooling were also completed: Experiments covered measurements in a cascade, effects of free stream conditions and of laminar boundary layer. A laser-Doppler setup was used to measure local and instantaneous velocities at the exit cross-section of a gas turbine combustor and turbulence intensities were derived. (Author)

• Supplemental Notes:
  • Availability: Microfiche copies only.
• Corporate Authors:

  University of Minnesota, Minneapolis

  Heat Transfer Laboratory
  Minneapolis, MN  United States 
• Authors:
  • Eckert, ERG
  • Goldstein, R J
  • Sparrow, E M
• Publication Date: 1977-8-30

Media Info

• Pagination: 22 p.

Subject/Index Terms

• TRT Terms: Ablative materials; Cooling; Doppler navigation; Engines; Films (Coatings); Gas turbines; Heat exchangers; Heat transfer; Laminar flow; Lasers; Marine diesel engines; Motion; Porosity; Rates; Ships; Surface temperature; Turbulence
• Old TRIS Terms: Ablation; Cascade structures; Cooling phenomena; Doppler system; Film cooling; Free stream; Impingement; Laminar boundary layer; Naphthalenes
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00169357
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Prog Rpt.
• Contract Numbers: N00014-76-C-0246
• Files: TRIS
• Created Date: Mar 14 1978 12:00AM