Analysis of laminar flow heat transfer in uniform temperature circular tubes with tape inserts
Abstract
Constant property, laminar flow heat transfer in a semicircular tube with uniform wall temperature has been analyzed to define the lower bound of heat transfer augmentation in circular tubes with twisted-tape inserts. Two thermal boundary conditions, which correspond to the two extremes of the fin effect of twisted tapes encountered in practical applications, are considered. Numerical solutions, employing finite-difference formulations for the governing momentum and energy equations were carried out for the thermal entrance region and for fully developed flow.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- May 1986
- Bibcode:
- 1986STIN...8712826M
- Keywords:
-
- Circular Tubes;
- Heat Transfer;
- Inserts;
- Laminar Flow;
- Wall Temperature;
- Energy Transfer;
- Finite Difference Theory;
- Momentum;
- Numerical Analysis;
- Steady State;
- Temperature Measurement;
- Thermal Boundary Layer;
- Fluid Mechanics and Heat Transfer