Conjugate Heat Transfer Study of Two-Dimensional Laminar Incompressible Confined Impinging Slot-Jet Flow
A. Sivasamy1, V. Selladurai2 and P. Rajesh Kanna3
1Senior Lecturer, Department of Mechanical Engineering, Sri Krishna College of Engineering and Technology, Coimbatore, Tamil Nadu 641 008, India.
a.sivasamy@gmail.com
2Professor, Department of Mechanical Engineering, Coimbatore Institute of Technology, Coimbatore,
Tamil Nadu 641 014, India.
profvsdcit@yahoo.com
3Associate Professor, Department of Mechanical Engineering, Kalasalingam University, Tamil Nadu, India.
prkanna@gmail.com
ABSTRACT
Steady-state conjugate heat transfer study of a slab and fluid is carried out for a two-dimensional laminar incompressible confined impinging slot jet. The governing equations are resolved by the control-volume based finite-difference method. The SIMPLE algorithm is adopted to solve the pressure-velocity coupling. Power-Law difference scheme is used to discretize the convection terms and central difference for diffusion terms. The energy equation in the fluid and the heat conduction equation in the solid are solved simultaneously. The conjugate heat transfer characteristics are studied with five parameters, nozzle to plate distance (Ly = 1.0−2.5), Reynolds number (Re = 100−500), Prandtl number (Pr = 0.01−100), solid slab thickness (S = 0.5−2.0), and solid to fluid thermal conductivity ratio (k = 1−100). The fluid properties affect the heat transfer in the solid slab. The heat transfer is reduced when solid slab thickness is increased. The heat transfer increases in the solid slab with increase in k. The effect of k on heat transfer is decreased when k is increased. Results are presented in terms of streamlines, isotherms, solid-fluid interface temperature, local and average Nusselt number.
Full Text (PDF)
|
