Laboratory and numerical investigations on Bénard–Marangoni convection in circular vessels

This study is concerned with supercritical Bénard–Marangoni flows of a high Prandtl number (Pr≈4000) fluid in cylinders of small to medium aspect ratio, 5⩽A⩽10. Laboratory experiments and numerical simulations, handled with an accurate spectral solver of the unsteady three-dimensional Boussinesq equ...

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Veröffentlicht in:Physics of fluids (1994) 2002-01, Vol.14 (1), p.277-288
Hauptverfasser: Pasquetti, R., Cerisier, P., Le Niliot, C.
Format: Artikel
Sprache:eng
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Zusammenfassung:This study is concerned with supercritical Bénard–Marangoni flows of a high Prandtl number (Pr≈4000) fluid in cylinders of small to medium aspect ratio, 5⩽A⩽10. Laboratory experiments and numerical simulations, handled with an accurate spectral solver of the unsteady three-dimensional Boussinesq equations, are used to get a good understanding of the flow behavior. Experimental and numerical results are successively presented and then discussed. The confinement effects are especially pointed out and carefully analyzed.
ISSN:1070-6631
1089-7666
DOI:10.1063/1.1424307