Eigenmodes of a rotating spherical Stokes flow with a radial stratification and radial buoyancy

A radial basis Galerkin method for spherical surface Stokes equations

Constructing efficient algorithms to simulate the Stokes and NavierStokes equations (NSEs) with divergence-free constraint on spherical surfaces plays a major role in many climate models on the global scale. Compactly supported radial basis functions (with centers at well distributed mesh points on spherical surfaces) are efficient tools for computing divergence-free numerical solutions for par...

Radial localization of toroidicity-induced Alfvén eigenmodes.

Linear gyrokinetic simulation of fusion plasmas finds a radial localization of the toroidal Alfvén eigenmodes (TAEs) due to the nonperturbative energetic particle (EP) contribution. The EP-driven TAE has a radial mode width much smaller than that predicted by the magnetohydrodynamic theory. The TAE radial position stays around the strongest EP pressure gradients when the EP profile evolves. The...

Patterning of flow and mixing in rotating radial microchannels

We demonstrate how the speed of mixing under laminar conditions can be appreciably enhanced in concurrent centrifugal flows through straight, low-aspect-ratio microchannels pointing in radial direction in the plane of rotation. The convective mixing is driven by the inhomogeneous distribution of the velocity-dependent Coriolis pseudo force and the interaction of the soinduced transverse current...

a comparison of teachers and supervisors, with respect to teacher efficacy and reflection

supervisors play an undeniable role in training teachers, before starting their professional experience by preparing them, at the initial years of their teaching by checking their work within the proper framework, and later on during their teaching by assessing their progress. but surprisingly, exploring their attributes, professional demands, and qualifications has remained a neglected theme i...

Instability of the vertical annular flow with a radial heating and rotating inner cylinder