- Author
-
Fu, T. T. M.
- Title
- Turbulent Free Convection Flow Above a Heated Horizontal Circular Plate.
- Coporate
- Naval Civil Engineering Lab., Port Hueneme, CA
- Sponsor
- Director of Navy Labs., Washington, DC
- Report
-
NCEL-TN-1079
May 1970
196 p.
- Distribution
- Available from National Technical Information Service
- Keywords
-
turbulent flow
|
free convection
|
temperature
|
anemometers
|
gas flow
|
hot wire anemometers
- Identifiers
- heat distributing units
- Abstract
- The turbulent free convection of air above a 2-foot diameter, heated horizontal plate has been studied experimentally and numerically. The mean temperature fields and the indraft profiles for two mean plate temperatures were measured using a thermocouple and a constant temperature hot wire anemometer. Also, the turbulence and mean velocity were measured for the higher plate temperature using the hot-wire method. The flow field was visualized by shadow photograph technique. From visualization and measurements, it was found that the region of significant deviation from ambient temperature and velocity was restricted to a region near the late centerline (the primary flow region). The indraft velocity was found to be relatively large near the ground level (within approximately 1" of the ground).