A numerical study of the Dufour and Soret effects on unsteady natural convection flow past an isothermal vertical cylinder

2009 ◽  
Vol 26 (4) ◽  
pp. 946-954 ◽  
Author(s):  
Hari Ponnamma Rani ◽  
Chang Nyung Kim
Keyword(s):  
Natural Convection ◽  
Numerical Study ◽  
Vertical Cylinder ◽  
Convection Flow ◽  
Natural Convection Flow ◽  
Flow Past ◽  
Unsteady Natural Convection

scholarly journals Unsteady natural convection flow past an accelerated vertical plate in a thermally stratified fluid

2009 ◽  
Vol 36 (4) ◽  
pp. 261-274 ◽  
Author(s):  
Rudra Deka ◽  
Bhaben Neog
Keyword(s):  
Natural Convection ◽  
Stratified Fluid ◽  
Convection Flow ◽  
Governing Equations ◽  
Vertical Temperature ◽  
Natural Convection Flow ◽  
Pressure Work ◽  
One Dimensional ◽  
Flow Past ◽  
Unsteady Natural Convection

An exact solution to one-dimensional unsteady natural convection flow past an infinite vertical accelerated plate, immersed in a viscous thermally stratified fluid is investigated. Pressure work term and the vertical temperature advection are considered in the thermodynamic energy equation. The dimensionless governing equations are solved by Laplace Transform techniques for the Prandtl number unity. The velocity and temperature profiles as well as the skin-friction and the rate of heat transfer are presented graphically and discussed the effects of the Grashof number Gr, stratification parameter S at various times t.

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