A Laser Shadowgraph for Flow Visualization in the AFFDL Rent Facility
Abstract
A laser shadowgraph is described which has been used for flow visualization in the Air Force Flight Dynamics Reentry Test Facility. The test flows are arc heated, supersonic, high pressure and high energy. The shadowgraph uses a He-Ne laser, spatial filter, collimating lens, camera lens, spectral filter and a camera body fitted with a neutral density filter to take shadowgraphs of shock waves around calibration probes in the RENT facility. The shadowgraph shows bow shock waves and shocks from the shoulder on the models as well as compression waves from the nozzle. Although it does not completely discriminate against flow luminosity the overexposed regions are limited enough to enable the observation of the shock waves in the luminous flows of this facility.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1975
- Accession Number
- ADA377344
Entities
People
- Robert F. Carpenter
Organizations
- Flight Dynamics Laboratory