A comparison of triple-moment temperature-velocity correlations in the asymmetric heated jet with alternative closure models
Abstract
Measurements are reported of all triple moments of velocity and temperature in a heated asymmetric two-dimensional turbulent jet involving velocity fluctuations in the x(1)-x(2) plane. The data thus obtained have been compared with those given by alternative algebraic models of the triple moments using, in the model formulae, experimental values of the second-moment quantities and the dissipation rate of kinetic energy. The study supports the view that in strongly asymmetric flows the contribution of mean temperature gradients to the triple moments can be appreciable. The comparison also provides some support for the use of the generalized gradient transport hypothesis in approximating dissipation of the triple moments.
- Publication:
-
4th Symposium on Turbulent Shear Flows
- Pub Date:
- 1984
- Bibcode:
- 1984stsf.proc...14D
- Keywords:
-
- Aerothermodynamics;
- Flow Velocity;
- Temperature Measurement;
- Turbulent Jets;
- Two Dimensional Jets;
- Correlation;
- Energy Dissipation;
- Mathematical Models;
- Temperature Gradients;
- Fluid Mechanics and Heat Transfer