Computation of confined inert turbulent coaxial jets with inner swirl
Abstract
Confined inert turbulent coaxial swirl flows have been calculated with the k-epsilon turbulence model for different inlet conditions, namely inner swirl, inlet axial velocity, and inlet turbulence, to investigate their influence on the predicted flow fields. Also, the influence of a turbulence model constant has been determined. The governing elliptic transport equations have been solved by using the TEACH-T program. It is observed that, for a fixed grid, predictions are influenced considerably by the inlet conditions. It is concluded that the inlet conditions, including turbulence quantities, must be specified realistically if quantitatively correct results are desired.
- Publication:
-
AIAA, SAE, ASME, and ASEE, 21st Joint Propulsion Conference
- Pub Date:
- July 1985
- Bibcode:
- 1985jpmc.confS....K
- Keywords:
-
- Coaxial Flow;
- Computational Fluid Dynamics;
- Swirling;
- Turbulent Jets;
- Elliptic Differential Equations;
- Flow Velocity;
- Inlet Flow;
- K-Epsilon Turbulence Model;
- Mathematical Models;
- Prediction Analysis Techniques;
- Fluid Mechanics and Heat Transfer