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arxiv 1411.4754 v2 pith:NX6A7M3G submitted 2014-11-18 physics.flu-dyn astro-ph.EP

On the Spiral Roll State in Heat Convection between Non-Rotating Concentric Double Spherical Boundaries

classification physics.flu-dyn astro-ph.EP
keywords stateboundariesconcentricdoublenon-rotatingrollsphericalspiral
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The single-arm spiral roll state in the system of Boussinesq fluid confined between non-rotating double concentric spherical boundaries with an opposing temperature gradient previously reported by Zhang et al.(Phys. Rev. E, v66, 055203, 2002) has been numerically investigated in detail. It is presented that the state can exist even in a relatively thicker gap rather than that used in our previous reports as a travelling wave solution with a finite constant angular velocity.

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