Heat transfer and boundary-layer laws in strongly non-adiabatic turbulent flows
Abstract
In many engineering fields, the solution of fluid dynamic problems requires the simultaneous consideration of both velocity and temperature fields. The present investigation is concerned with numerical computations of strongly nonadiabatic turbulent velocity and temperature boundary layers, taking into account the eddy-viscosity and eddy-conductivity concept. The Reynolds equations describe two-dimensional incompressible temperature and velocity fields with boundary-layer charactersitics. Suitable governing equations are presented and experimental boundary-layer and heat transfer studies, carried out in the ILR thermo wind tunnel, are discussed. It is found that reliable computations of the similarity laws, and of the mean velocity and temperature distributions are possible by introducing the turbulent Prandtl number and the damping constant in the mixing-length formula.
- Publication:
-
IN: Numerical methods in thermal problems. Volume 3 Proceedings of the Third International Conference
- Pub Date:
- 1983
- Bibcode:
- 1983nmtp....3..707N
- Keywords:
-
- Boundary Layer Flow;
- Flow Equations;
- Nonadiabatic Conditions;
- Turbulent Flow;
- Turbulent Heat Transfer;
- Conductive Heat Transfer;
- Eddy Viscosity;
- Heat Transfer Coefficients;
- Incompressible Flow;
- Mixing Length Flow Theory;
- Prandtl Number;
- Temperature Distribution;
- Fluid Mechanics and Heat Transfer