Abstract: A sample in a wind tunnel is radiated from a thermal energy source exteriorly of the wind tunnel. A thermal imager system, also located exteriorly of the wind tunnel, reads surface radiations from the sample as a function of time. The produced thermal images are characteristic of the heat transferred from the sample to the flow across the sample. In turn, the measured rates of heat loss of the sample are characteristic of the flow and the sample.
Type:
Grant
Filed:
January 22, 1988
Date of Patent:
February 4, 1992
Assignee:
The United States of America as represented by the Administator of the United States National Aeronautics and Space Administration
Inventors:
Joseph S. Heyman, D. Michele Heath, Christopher S. Welch, William P. Winfree, William E. Miller