Computer simulation of thermal convection in Rayleigh-Bénard cell ...
Computer simulation of thermal convection in Rayleigh-Bénard cell ...
Computer simulation of thermal convection in Rayleigh-Bénard cell ...
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Hubert Jopek<br />
<strong>Computer</strong> <strong>simulation</strong> <strong>of</strong> <strong>thermal</strong> <strong>convection</strong> <strong>in</strong> <strong>Rayleigh</strong>-<strong>Bénard</strong> <strong>cell</strong><br />
The changes <strong>of</strong> temperature distribution <strong>in</strong> the fluid layer are presented<br />
below. It starts when the pocket <strong>of</strong> fluid <strong>of</strong> higher temperature appears and arises.<br />
Next the pocket goes up, spreads and than comes back to the previous state. The<br />
process consists <strong>of</strong> several cycles and after that the fluid becomes stable.<br />
(a) The pocket <strong>of</strong> the fluid <strong>of</strong> higher<br />
temperature appears<br />
(b) The pocket arises.<br />
(c) The particles <strong>of</strong> the fluid <strong>of</strong> higher<br />
temperature are spread<strong>in</strong>g a little<br />
(d) The fluid is com<strong>in</strong>g back to the<br />
previous state.<br />
Fig 6.3: The sequence <strong>of</strong> the temperature maps.<br />
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