TURBULENCE MEASUREMENTS WITH INCLINED HOT-WIRES,
Abstract
The results of the heat transfer and temperature distribution measurements indicate that an inclined hot-wire is sensitive to the tangential velocity component along the wire. The temperature distribution measurements indicate that inclined and normal wires have nearly identical end conduction losses, although the temperature distribution on an inclined wire is slightly asymmetrical. Therefore, the deviation from the cosine law is caused by an increase in the convection heat loss attributable to the tangential component of velocity. The sensitivity of an inclined hot-wire to the tangential velocity component must be taken into consideration when interpreting hot-wire data in terms of velocity components of a flow field. The wire is best calibrated directly at all desired yaw angles.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1965
- Accession Number
- AD0629719
Entities
People
- F. H. Champagne
Organizations
- Boeing