منابع مشابه
Freezing of Water in the Differentially Heated Cubic Cavity
fitted grid, finite differences vorticity-vector potential method. Summary An experimental and numerical study has been made of transient natural convection of water freezing in a cube-shaped cavity. The effect of the heat transfer through the side walls is studied in two configurations: with the cavity surrounded by air and with the cavity immersed in an external water bath of constant tempera...
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Buoyancy driven heat transfer of Cu-water nanofluid in a differentially heated square cavity with an inner adiabatic square baffle at different positions is studied numerically. The left and right walls of the cavity are at temperatures of Th and Tc, respectively that Th > Tc, while the horizontal walls are insulated. The governing equations are discretized using the finite volume method while ...
متن کاملLinear stability of flow in a differentially heated cavity via large-scale eigenvalue calculations
We locate the onset of oscillatory instability in the flow in a differentially heated cavity of aspect ratio 2 by computing a steady state and analyzing the stability of the system via eigenvalue approximation. We discuss the choosing of parameters for the Cayley transformation so that the calculation of selected eigenvalues of the transformed system will most reliably answer the question of st...
متن کاملNatural convection in a shallow cavity with differentially heated end walls. Part 1. Asymptotic theory
The problem of natural convection in a cavity of small aspect ratio with differentially heated end walls is considered. It is shown by use of matched asymptotic expansions that the flow consists of two distinct regimes : a parallel flow in the core region and a second, non-parallel flow near the ends of the cavity. A solution valid at all orders in the aspect ratio A is found for the core regio...
متن کاملNatural convection in a shallow cavity with differentially heated end walls. Part 2. Numerical solutions
Numerical solutions of the full Navier-Stokes equations are obtained for the problem of natural convection in closed cavities of small aspect ratio with differentially heated end walls. These solutions cover the parameter range Pr = 6.983, 10 6 Gr d 2 x lo4 and 0.05 4 A d 1. A comparison with the asymptotic theory of part 1 shows excellent agreement between the analytical and numerical solution...
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ژورنال
عنوان ژورنال: Sadhana
سال: 1994
ISSN: 0256-2499,0973-7677
DOI: 10.1007/bf02744398