Study of a circular jet at low Reynolds numbers and with impact on a wall
Abstract
An experimental study of a circular air jet developing in the atmosphere and impinging normally on a smooth wall was carried out using hot-wire anemometry and flow visualization. Emphasis is placed on the effect of relatively low values of the nozzle Reynolds number, ranging from 5500 to 44,000. Experimental results include mean-velocity fields, intensities and spectra of longitudinal fluctuations of intermittent velocity, and conditional means; quantitative information on the free boundary is presented. The aggregate data obtained, including results of flow visualization, are used in a detailed examination of the effects of the impact and the Reynolds number.
- Publication:
-
Ph.D. Thesis
- Pub Date:
- 1982
- Bibcode:
- 1982PhDT.........3Z
- Keywords:
-
- Flow Measurement;
- Low Reynolds Number;
- Wall Jets;
- Flow Velocity;
- Flow Visualization;
- Free Boundaries;
- Free Jets;
- Hot-Wire Anemometers;
- Intermittency;
- Signal Processing;
- Turbulent Flow;
- Fluid Mechanics and Heat Transfer