A linear stability analysis of large-Prandtl-number thermocapillary liquid bridges
نویسندگان
چکیده
منابع مشابه
A linear stability analysis of large-Prandtl-number thermocapillary liquid bridges
A linear stability analysis is applied to determine the onset of oscillatory thermocapillary convection in cylindrical liquid bridges of large Prandtl numbers (4 6 Pr 6 50). We focus on the relationships between the critical Reynolds number Rec, the azimuthal wave number m, the aspect ratio Γ and the Prandtl number Pr. A detailed Rec-Pr stability diagram is given for liquid bridges with various...
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We consider the instability of the steady, axisymmetric thermocapillary convection in cylindrical liquid bridges. Finite-difference method is applied to compute the steady axisymmetric basic solutions, and to examine their linear instability to three-dimensional modal perturbations. The numerical results show that for liquid bridges of O(1) aspect ratio Γ (=length/radius) the first instability ...
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Particle accumulation structures (PAS) in liquid bridges are considered in a didactic approach. After reviewing the experimental results on PAS we explain PAS as a limit cycle of the particle motion in the frame of reference co-rotating with the hydrothermal wave. The limit cycles representing PAS are created by perturbations of the motion of perfect tracer particles. Therefore, the topology of...
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ژورنال
عنوان ژورنال: Advances in Space Research
سال: 2008
ISSN: 0273-1177
DOI: 10.1016/j.asr.2007.07.016