Heat transfer in serpentine passages with turbulence promoters
Abstract
Local heat transfer rates and overall pressure losses were determined for serpentine passages of square cross section. The flow entered an inlet leg, turned 180 deg and then passed through an outlet leg. Results were obtained for a passage with smooth walls for three different bend geometries and the effect of turbulence promoters was investigated. Turbulence promoters between 0.6 and 15% of the passage height were tested. Local heat transfer rates are determined from thermocouple measurements on a thin electrically heated Inconel foil and pressure drop is measured along the flow path.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- 1984
- Bibcode:
- 1984STIN...8422911B
- Keywords:
-
- Rotor Blades (Turbomachinery);
- Turbulent Heat Transfer;
- Pressure Drop;
- Thermohydraulics;
- Thrust Augmentation;
- Turbulent Flow;
- Fluid Mechanics and Heat Transfer