Thermal Performance of Inline and Staggered Bank of Tubes with Laminar Cross Flow

This paper presents experimental and numerical studies of heat transfer performance from circular tube bundles with in-line and staggered arrangements inserted into channels with longitudinal pitch to tube diameter ST/D=4 and transverse tube pitch ratio SL/D=4. Reynolds number for air flows from 250 to 1500, the Prandtl number is 0.7. Variations of heat transfer coefficients and local Nusselt number distributions over embankment geometry, temperature, velocity, pressure, and streamline profiles were obtained on the cylinder surface. The results are in good agreement with the experimental, numerical, and analytical results of earlier work. The staggered arrangement of tubes has been found to transfer slightly more heat than an inline arrangement of tubes.