Heat transfer across turbulent boundary layers with pressure gradients
Abstract
The boundary layer velocity profiles of steady, constantproperty, turbulent and thin boundary layers over a body that generates an arbitrary pressure gradient are given by the inner law and the combined law of wall and wake, while the temperature profiles are given by derived forms of the thermal counterparts of these laws in conjunction with a cubic polynomial arrived at by modeling the thermal superlayer region. The profiles' application to the integral form of the energy equation for the thermal boundary layer thickness yields the local Stanton number distribution. A comparison with experimental Stanton numbers shows good agreement for pressure gradients that include very strong accelerations, tending toward laminarization.
 Publication:

Heat Transfer in Gas Turbine Engines and ThreeDimensional Flows
 Pub Date:
 1988
 Bibcode:
 1988htgt.symp...29S
 Keywords:

 Pressure Gradients;
 Turbulent Boundary Layer;
 Turbulent Heat Transfer;
 Skin Friction;
 Stanton Number;
 Temperature Distribution;
 Thermal Boundary Layer;
 Velocity Distribution;
 Fluid Mechanics and Heat Transfer