Interaction of moderately dense particle concentrations in turbulent flow
Abstract
Numerical simulations are presented which describe fluctuating gas motions and effects of resulting forces on gas-borne particulates. The effects include the back influence of the particulates on the turbulent gas field that convects them. Force, energy and motion coupling between particles and gas is moderately influential consistent with the modest levels of particle-to-gas mass loading (the order of 0.01 to 0.1), associated with use of erosion suppressing particulate additives. Back influence consists of inertial and volumetric effects as well as modeled acoustical coupling, where appropriate. Preliminary results of complementary wind tunnel experiments, measuring influences of particle loading on turbulent structures, are also presented.
- Publication:
-
AIAA, Aerospace Sciences Meeting
- Pub Date:
- January 1981
- Bibcode:
- 1981aiaa.meetV....B
- Keywords:
-
- Boundary Layer Flow;
- Gas Dynamics;
- Gas-Solid Interactions;
- Particle Density (Concentration);
- Turbulent Flow;
- Two Phase Flow;
- Additives;
- Erosion;
- Flow Distribution;
- Mathematical Models;
- Particulates;
- Statistical Correlation;
- Transport Properties;
- Velocity Distribution;
- Wind Tunnel Tests;
- Fluid Mechanics and Heat Transfer