منابع مشابه
Analysis of centrifugal convection in rotating pipes
New exact solutions, obtained for centrifugal convection of a compressible fluid in pipes and annular pipes, explain axially elongated counterflow and energy separation—poorly understood phenomena occurring in vortex devices, e.g., hydrocyclones and Ranque tubes. Centrifugal acceleration ~which can be up to 10 times gravity in practical vortex tubes!, combined with an axial gradient of temperat...
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The onset of thermal convection in a nematic contained in a vertical rotating cylindrical annulus heated from the outside is studied as a function of the planar alignment of the liquid crystal director n. When n is horizontal, the results confirm data on gravitational buoyancy. An original first order like convection mode is obtained when n is parallel to the cylinder axis. Thermal convection i...
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Rotating convection in cylindrical containers is a canonical problem in fluid dynamics, in which a variety of simplifying assumptions have been used in order to allow for low-dimensional models or linear stability analysis from trivial basic states. An aspect of the problem that has received only limited attention is the influence of the centrifugal force, because it makes it difficult or even ...
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Defining the four vectors n and τ of Abramowicz’s covariant formalism of inertial forces, in terms of the lapse function α, shift vector β, the metric γij and the velocity 3-vector V , we derive the components of centrifugal and Coriolis accelerations acting on a fluid element with four velocity U. We show that while for purely radial flow the centrifugal acceleration component is zero in stati...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2018
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.120.204502