Buoyancy effects on turbulent transport in combined free and forced convection between vertical parallel plates

1980 ◽  
Vol 23 (10) ◽  
pp. 1325-1336 ◽  
Author(s):  
Nakajima Masamoto ◽  
Fukui Keisuke ◽  
Ueda Hiromasa ◽  
Mlzushina Tokuro
1960 ◽  
Vol 82 (3) ◽  
pp. 233-238 ◽  
Author(s):  
L. N. Tao

The heat-transfer problems of combined free and forced convection by a fully developed laminar flow in a vertical channel of constant axial wall temperature gradient with or without heat generations are approached by a new method. By introducing a complex function which is directly related to the velocity and temperature fields, the coupled momentum and energy equations are readily combinable to a Helmholtz wave equation in the complex domain. This greatly reduces the complexities of the problems. For illustrations, the cases of flows between parallel plates and in a rectangular channel are treated. It shows that this method is more direct and powerful than those of previous investigations.


1973 ◽  
Vol 95 (1) ◽  
pp. 53-59 ◽  
Author(s):  
J. Quintiere ◽  
W. K. Mueller

Approximate analytical solutions are presented for constant-property laminar free- and forced-convection flows between finite vertical parallel plates. For free convection, the thermal boundary conditions considered include the thermally symmetric channel with uniform wall temperature or step change in wall temperature and the unsymmetric channel with uniform but unequal wall temperatures. For forced convection and combined free and forced convection, the thermally symmetric and uniform thermal boundary condition is considered. Where possible, results are compared with available numerical and experimental results. Particular attention is given to heat-transfer results, which cover a wide range of Rayleigh and Prandtl numbers. For combined convection the heat-transfer results are related to the impressed pressure difference and flow rate.


PAMM ◽  
2018 ◽  
Vol 18 (1) ◽  
Author(s):  
Janine Glänzel ◽  
Martin Stoll ◽  
Roman Unger

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