A laser holograph for investigation of two-dimensional transonic cascade flow
Abstract
A simple optical arrangement with a laser light source was constructed for interferometric and holographic flow measurements and applied to a cascade test section. The arrangement selected for cascade flow investigation is a double exposure holograph. Problems in optimizing the installation and construction are outlined. Measured and calculated flow fields were compared, and the accuracy of the measurement was found to be as good as that of the calculation.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- 1977
- Bibcode:
- 1977STIN...7811327E
- Keywords:
-
- Cascade Flow;
- Holographic Interferometry;
- Laser Applications;
- Transonic Flow;
- Compressor Blades;
- Flow Distribution;
- Flow Measurement;
- Holography;
- Optical Equipment;
- Two Dimensional Flow;
- Fluid Mechanics and Heat Transfer