Three dimensional numerical investigation of forced convection heat transfer from offset square cylinders placed in a confined channel

2018 ◽  
Vol 10 (1/2) ◽  
pp. 141
Author(s):  
P. Rajesh Kanna ◽  
M. Sivasubramanian ◽  
P. Maheandera Prabu ◽  
M. Uthayakumar
Keyword(s):  
Heat Transfer ◽  
Numerical Investigation ◽  
Forced Convection ◽  
Three Dimensional ◽  
Convection Heat Transfer ◽  
Convection Heat ◽  
Forced Convection Heat Transfer ◽  
Square Cylinders ◽  
Confined Channel

Numerical Investigation of Forced Convection Heat Transfer from Offset Square Cylinders Placed in a Three Dimensional Confined Channel

2015 ◽  
Vol 813-814 ◽  
pp. 729-735 ◽  
Author(s):  
Paulraj Maheandera Prabu ◽  
Mahadevan Sivasubramanian ◽  
P. Rajesh Kanna ◽  
M. Uthayakumar ◽  
K.P. Padmanaban
Keyword(s):  
Heat Transfer ◽  
Reynolds Number ◽  
Nusselt Number ◽  
Forced Convection ◽  
Convection Heat Transfer ◽  
Flow Simulation ◽  
Convection Heat ◽  
Forced Convection Heat Transfer ◽  
Square Cylinders ◽  
Confined Channel

Abstract-Flow over two offset square cylinders in a confined channel is simulated for different Reynoldsnumber to reveal the forced convection heat transfer from the heated square cylinders to the ambientfluid. The bottom of the cylinder is maintained at constant temperature. The distance between thecylinder in normal direction as well as transverse direction are fixed as 2d and the blockage ratio is fixedas 0.167. Heat transfer from the cylinders to the ambient fluid as well as conducted within solid wallthrough conjugate interface boundary investigated in connection with Reynolds number are reportedfor both steady and periodic flow. Simulation is carried out for Reynolds number varies from 10 to100 for the fluid as air with Prandtl number as 0.71. The isotherm contours, local Nusselt number andaverage Nusselt number are reported for various Reynolds number. The stagnation zone results higherNusselt number than remaining walls and rear wall results lowest Nusselt number. The downstreamcylinder results higher Nusselt number than the upstream cylinder. The top and bottom surfaceNusselt number from upstream and downstream cylinder are not analogous to single cylinder placed ina channel.

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