ISSN Online: 2379-1748
ISBN Flash Drive: 978-1-56700-472-4
ISBN Online: 978-1-56700-471-7
3rd Thermal and Fluids Engineering Conference (TFEC)
TRANSPORT ENEHANCEMENT IN A CHANNEL WITH MUTIPLE TRIANGULAR PRISMS
Abstract
Thermohydraulic performances in a square channel fitted with triangular prism, using air (Pr = 0.707) as
working fluid are investigated numerically. The triangular prism is placed in a square channel. Influences of
triangular prism arrangement in forward direction are described. The Reynolds number varies from 100 −
50,000. Air has been used as a working fluid. In this paper, transition - SST model which can predict the
transition of flow regime from laminar through intermittent to turbulent has been applied for numerical
simulations. Due to the formation of vortices, the heat transfer is enhanced appreciably. The results indicate that
in presence of triangular prism, heat transfer in a channel is augmented by around 10% - 12%. The increase in
heat transfer is related to the vortex formation downstream of the triangular element. Heat transfer enhancement
and friction loss increased with combined effect of three triangular prisms. Numerical results indicate that the
use of triangular prisms the channel can prominently increase the heat transfer performance.