Boundary and inertia effects on vortex instability of a horizontal mixed convection flow in a porous medium
- National Cheng-Kung Univ., Tainan (Taiwan, Province of China)
Non-Darcian effects, including the effects of boundary and inertia, are examined on the flow and vortex instability of a horizontal mixed convective boundary layer flow in a high-porosity medium. In the base flow, the governing conservation equations are solved by using a suitable variable transformation and employing an implicit finite-difference scheme. The stability analysis is based on linear stability theory, and the resulting equations are solved on the basis of the local similarity approximations. The results show that the flow becomes more susceptible to the vortex mode of disturbances as buoyancy force is increased. In addition, both the boundary and inertia effects reduce the heat transfer rate and stabilize the flow to the vortex mode of disturbances.
- OSTI ID:
- 6441554
- Journal Information:
- Numerical Heat Transfer. Part A, Applications; (United States), Journal Name: Numerical Heat Transfer. Part A, Applications; (United States) Vol. 23:3; ISSN 1040-7782; ISSN NHAAES
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
420400* -- Engineering-- Heat Transfer & Fluid Flow
BOUNDARY LAYERS
CALCULATION METHODS
CONVECTION
ENERGY TRANSFER
FINITE DIFFERENCE METHOD
FLUID FLOW
HEAT TRANSFER
ITERATIVE METHODS
LAYERS
MASS TRANSFER
MATERIALS
MOMENT OF INERTIA
NUMERICAL SOLUTION
ORIENTATION
POROUS MATERIALS
VORTICES