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)
- Availability: Microfiche copies only.
University of Minnesota, MinneapolisHeat Transfer Laboratory
Minneapolis, MN USA
- Eckert, ERG
- Goldstein, R J
- Sparrow, E M
- Publication Date: 1977-8-30
- Pagination: 22 p.
- 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;
- 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