Turbulence structure of mixing swirling flows
Abstract
A swirling inner flow which develops along a constant-diameter centerbody in the presence of an unconfined, axially-directed outer flow was investigated. The data which were acquired include local mean velocity and static pressure profiles at six streamwise locations for different prescribed mass flow rate ratios. Local wall shear stress measurements were made at these six streamwise locations in order to investigate local law-of-the-wall behavior in the vicinity of the centerbody. Reynolds stress measurements were also made in order to quantify the local turbulence structure. The scope of these measurements and the physical characteristics of the flow which were deduced from the data are described. The implications of the results from a turbulence modeling point of view is also discussed.
- Publication:
-
Final Technical Report
- Pub Date:
- December 1989
- Bibcode:
- 1989uwse.reptR....G
- Keywords:
-
- Shear Stress;
- Static Pressure;
- Swirling;
- Turbulence Models;
- Turbulent Flow;
- Velocity Distribution;
- Flow Measurement;
- Mixing;
- Momentum Transfer;
- Residual Stress;
- Stress Measurement;
- Fluid Mechanics and Heat Transfer