1-Heat Transfer over a Flat Tube Bundle
Flat tubes are preferred to circular tubes in heat exchanger applications because:
a) larger heat transfer contact area and
b) less vibration due to smaller downstream recirculation bubble
A finite volume based code was developed to predict heat transfer over a flat tube bank. An algebraic technique was used to generate the body fitted grid and problem was solved in terms of contra-variant variables. The code validated by comparing results for flow over a series of circular cylinders confined in a parallel plate channel.
2-Numerical Analysis of Fluid Flow Heat Transfer of Wavy channel
A two-dimensional steady developing fluid flow and heat transfer through periodic wavy passage were numerically studied for a fluid with a Prandlt number of 0.7 and compared to flow through a corresponding straight (parallel Plate) channel. Sinusoidal and arc-shaped configurations were studied for a range of geometric parameters.
Numerical Heat Transfer and Fluid Flow, Numerical Techniques, Heat Exchangers, Grid Generation Techniques