Transport coefficients for laminar and turbulent flow through a four-cusp channel

Abstract

A study was performed to determine entrance region and fully developed heat transfer coefficients for laminar and turbulent flow in a four-cusp channel, for a thermal boundary condition of uniform wall temperature. A numerical solution was presented for fully developed laminar flow, and an experimental study was reported for turbulent flow. In the experiments, systematic variations of the Reynolds number were made in the range 5300–30,300. The results show that the heat transfer coefficients for the four-cusp channel are much lower than the coefficients for the circular tube.