scholarly journals Integral modelling of an unsteady natural convection boundary layer

2020 ◽  
Author(s):  
Junhao Ke
Keyword(s):  
Boundary Layer ◽  
Natural Convection ◽  
Convection Boundary Layer ◽  
Convection Boundary ◽  
Unsteady Natural Convection

scholarly journals Transpiration effect on unsteady natural convection boundary layer flow around a vertical slender body

2021 ◽  
Vol 12 ◽  
pp. 100293
Author(s):  
Md Hasanuzzaman ◽  
Md Ahasan Kabir ◽  
Md Tanvir Ahmed
Keyword(s):  
Boundary Layer ◽  
Natural Convection ◽  
Boundary Layer Flow ◽  
Slender Body ◽  
Convection Boundary Layer ◽  
Convection Boundary ◽  
Layer Flow ◽  
Unsteady Natural Convection

scholarly journals Scaling Analysis of the Unsteady Natural Convection Boundary Layer Adjacent to an Inclined Plate for Pr > 1 Following Instantaneous Heating

2011 ◽  
Vol 133 (11) ◽  
Author(s):  
Suvash C. Saha ◽  
Feng Xu ◽  
Md Mamun Molla
Keyword(s):  
Boundary Layer ◽  
Natural Convection ◽  
Numerical Simulations ◽  
Direct Numerical Simulations ◽  
Convection Boundary Layer ◽  
Scaling Analysis ◽  
Inclined Plate ◽  
Wide Range ◽  
Convection Boundary ◽  
Unsteady Natural Convection

The unsteady natural convection boundary layer adjacent to an instantaneously heated inclined plate is investigated using an improved scaling analysis and direct numerical simulations. The development of the unsteady natural convection boundary layer following instantaneous heating may be classified into three distinct stages including a start-up stage, a transitional stage, and a steady state stage, which can be clearly identified in the analytical and numerical results. Major scaling relations of the velocity and thicknesses and the flow development time of the natural convection boundary layer are obtained using triple-layer integral solutions and verified by direct numerical simulations over a wide range of flow parameters.

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