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Updated: Jun 30, 2025

Uncoupling Coriolis Force and Rotating Buoyancy Effects on Full-Field Heat Transfer Properties of a Rotating Channel
Published on: October 5, 2018
Convection of monodisperse particles in a highly filled rotating cylinder
Shoichi Yoneta1, Hiroyuki Ebata1, Shio Inagaki1
1Department of Physics, Graduate School of Science, Kyushu University, Fukuoka 819-0395, Japan.
Abstract:
We investigate the occurrence of spontaneous convection in a coaxial cylinder highly filled with monodisperse spheres. To analyze the flow field noninvasively, initial pulses consisting of colored particles are placed at equal intervals. By analyzing the spatiotemporal distribution of these pulses, we obtained axial velocity profiles for both the surface and subsurface regions. Our advection-diffusion equations with steady advection terms incorporate experimentally obtained axial velocity profiles in the surface layer, while the rest of the components are estimated using azimuthal symmetry and volume conservation. The validity of our model is confirmed by comparing experimental data with numerical solutions for both the spatiotemporal distribution and cross-sectional profile of the colored particles.
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