Quantitative Gas Flow Measurements Using a Moire' Optical System.
Abstract
A moire' optical system is applied to measurements in forced gas flow. Verification tests on a vertical heated flat plate with one steady and two spark light sources gave acceptable values for the temperature gradient in the boundary layer. The relative efficiency of a nozzle with 12 interchangeable inlet geometries is evaluated by using temperature gradients obtained with the optical system. Calculations of densities using a linear theory developed in the paper gave less than 1% deviation from measured values for a heated flat plate and 4.8% deviation from the isentropic value in supersonic flow. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1969
- Accession Number
- AD0851934
Entities
People
- Jerry T. Jones
Organizations
- Air Force Institute of Technology