TRANSPIRATION-FILM COOLING STUDY USING SPIRAL-WOUND RIBBON NOZZLE.
Abstract
The program consists of an analytical and experimental evaluation of the cooling capability of a nozzle design made by the spiral-wound-nozzle method. The following work was accomplished: (1) The analytical study was completed and all equations and methods of solution were selected. The digital computer program was completed and study cases are being run off on the IBM 7094 for evaluating the program characteristics. (2) The laboratory bench test work on evaluation of thermocouple techniques was completed. The single wire thermocouple approach was shown to be very satisfactory for measurement of the wall temperatures during transpiration cooling. (3) A preliminary blockage study run was completed which indicated that the grooved ribbon design offers promise of satisfactorily operating with coolants having contaminating particles, without catastrophic blockage. (4) Preliminary performances test data were obtained in the laboratory bench test program with aluminum and copper test samples. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1965
- Accession Number
- AD0615782
Entities
People
- A. R. Nagy Jr.
- D. R. Ayres
- G. A. Yankura
- J. E. Ahern