GENERAL PURPOSE FLUID MECHANICS HANDS-ON
1999-2000
In this course the numerical code series Phoenics (Cham)
and Fluent (Fluent) are used to study a layer of fluid between horizontal
parallels walls maintained at different temperatures (Free convection,
Rayleigh-Benard instability). After having define the problem to be solved
(choise of the equations, of the models, of the boundary conditions and
of the initial conditions), we determine the critical Rayleigh's number
above which stationnary convective rolls appear. We analyse the dynamical
and thermal behavior of the convective structures at the onset of motion.
Numerical results are compared to theoretical results obtained from linear
stability analysis.
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