Oscillatory thermocapillary convection in floating zones under normal- and micro-gravity |
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Authors: | D Schwabe A Scharmann |
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Institution: | I. Physikalisches Institut der Justus-Leibig-Universität, D-6300, Giessen, FRG |
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Abstract: | The thermocapillary convection in a floating zone becomes oscillatory, exceeding a Marangoni number of approximately 104. The oscillatory state of thermocapillary convection has been verified under 1 g and 10?4 g and the features seem to be fairly independent of the gravity level. The transition point from the laminar to the oscillatory state (critical Marangoni number), however, depends on the magnitude and direction of the buoyant force. |
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