Modeling of a Natural Convection Flow Plume-Thermosiphon Interaction
2013
The authors examine numerically a flow of interaction plume - thermosiphon unsteady, two-dimensionally in a vertical cylinder; this flow of natural convection assumed laminar is generated by the presence of a generating source at the input of the cylinder. To bypass the speed-pressure coupling of the Navier - Stokes equations, a method of projection type Predictor - corrector is used. Numerical integration is done in a field variable mesh with the Patankar control volume method. The discretized equations are then solved by the iterative method of relaxation line by line. The influence of the Rayleigh number and radius of the heat source on the dynamic and thermal fields, the local Nusselt numbers are analyzed and the phenomena of entry are discussed.
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