The phenomena of scalar mixing in turbulent gas-particle flows, measuring equipment, and measurements
Abstract
The phenomena of scalar mixing in turbulent gas-particle flows up to the loading ratio two is studied in upward flow conditions using spherical equal sized particles as the dispersed phase and air as the conveying phase. The tracer gas is injected isokineticly and isothermally in the parallel gas-particle flow and the time mean profile of the concentration is measured using a suction probe connected to the infrared analyzer. These profiles are fitted to the similarity solution derived assuming the gradient diffusion model for the mixing process leading to the approximate value of the diffusivity.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- 1989
- Bibcode:
- 1989STIN...9211327K
- Keywords:
-
- Flow Measurement;
- Gas Flow;
- Measuring Instruments;
- Particle Motion;
- Scalars;
- Turbulent Flow;
- Turbulent Mixing;
- Two Phase Flow;
- Gas Analysis;
- Gaseous Diffusion;
- Gradients;
- Infrared Instruments;
- Mathematical Models;
- Parallel Flow;
- Fluid Mechanics and Heat Transfer