Vibration effect on the onset of thermal convection in an inhomogeneous porous layer underlying a fluid layer

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• 作者：E.A. Kolchanova^a ; ^b ; ^c ; ^{kolchanovaea@gmail.com} ; N.V. Kolchanov^c ; ^{kolchanovn@gmail.com}
• 关键词：Thermal convection ; Two-layer system ; Inhomogeneous porous layer ; Vertical high-frequency vibrations ; Variable porosity and permeability
• 刊名：International Journal of Heat and Mass Transfer
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：106
• 期：Complete
• 页码：47-60
• 全文大小：1970 K
• 卷排序：106

文摘

Studying the vibration effect on convection excitation in fluid and porous layers. Monitoring the porosity variations with depth for packed glass spheres. Changes in the porosity affect the long-wave perturbations covering both layers. Short-wave perturbations in the fluid layer are stabilized by vibrations strongly. Finding a smooth transition for these perturbations if porosity drops with depth.