... fraction as the uniform wall temperature region. The fractional areas under the two regions are considered variable. Adopting thermally thin wall regime approximation, the possible solutions were investigated and found to satisfactorily deal with longitudinal conduction and temperature variation...

... ducts uniform wall temperature axial diffusion heat transfer enhancement wavy walls A significant body of research on flow and heat transfer in wavy channels of different configurations is available in the literature; the following literature review is restricted to the investigations...