Formation of Barchans and Ripples due to Steady Viscous Flow in an Annular Channel(Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid mechanics)
スポンサーリンク
概要
- 論文の詳細を見る
An experimental study is made on the pattern formation of the sand bed immersed in a viscous fluid between two concentric cylinders of finite depth, whose channel width is sufficiently large as compared with the particle size. The upper boundary of the fluid is in contact with an annular ring made of transparent acrylic resin, which slides itself at a constant angular velocity, whereas other boundaries are at rest. The velocity field is measured, which revealed that the vertical velocity profile is quite different from the linear shear flow, whereas the effect of the side walls is not significant in the bulk region of our channel. The onset and growth of barchan dunes and sand ripples, time variation of the wavelength and volume of the ripples, and their dependence on the fluid velocity are examined. A simple model that describes the growth of the ripples is proposed.
- 社団法人日本物理学会の論文
- 2007-02-15
著者
-
Sano Osamu
Department Of Applied Physics Tokyo University Of Agriculture And Technology
-
Oshiro Yuki
Department Of Applied Physics Tokyo University Of Agriculture And Technology
-
HORI Nanako
Department of Applied Physics, Tokyo University of Agriculture and Technology
-
YAMADA Akko
Department of Applied Physics, Tokyo University of Agriculture and Technology
-
Sano Osamu
Department Of Applied Physics Faculty Of Engineering University Of Tokyo
-
Yamada Akko
Department Of Applied Physics Tokyo University Of Agriculture And Technology
-
Hori Nanako
Department Of Applied Physics Tokyo University Of Agriculture And Technology
-
Sano Osamu
Department Mining and Mineral Engineering
関連論文
- Acoustic emission during slow crack growth : 2nd paper
- Hydrodynamical Resistance of a Smooth Muscle Myosin Molecule and Its Application to Conformational Changes Associated with Phosphorylation
- Surface Tension Driven Oscillatory Motion of a Mercury Drop in the Presence of Concentration Gradient of K_2 Cr_2 O_7 in HNO_3 Solution
- A study of tensile strain in upper surface of rock slope using barodynamics experiment
- Formation of Barchans and Ripples due to Steady Viscous Flow in an Annular Channel(Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid mechanics)
- Experiment on Vibration-Induced Pattern Formation of a Vertically Thin Granular Layer(Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics and Fluid Mechanics)
- Growth and Interaction of Sand Ripples Due to Steady Viscous Flow in an Annular Channel(Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid mechanics)
- Experimental study on the interaction of two two-dimensional circular holes placed in a uniform viscous flow in a porous medium
- Acoustic emission during slow crack growth
- Slow Motion of a Small Sphere in a Viscous Fluid in a Corner : I. Motion on and across the Bisector of a Wedge
- An Experimental Study of the Thermal Convection in a Vertical Torus
- Convection Diffusion in Hexagonal Rayleigh-Benard Cell
- Undulations of a Thin Granular Layer Induced by Vertical Vibration
- Undulations of a Thin Granular Layer Induced by Vertical Vibration
- Sedimentation of a Small Sphere in a Viscous Fluid Bounded by Two Perpendicular Walls
- A note on the drag reduction of a circular cylinder due to double rows of holes
- Viscous Flow past a Circular / Spherical Void in Porous Media-An Application to Measurement of the Velocity of Ground water by the Single Boring Method : Classical Phenomenology and Applications
- Slow Motion of a Spherical Particle in a Viscous Fluid Bounded by Two Perpendicular Walls
- Surface Tension Driven Random Motion of a Mercury Drop in HNO_3 and K_2Cr_2O_7 Solution
- Dispersion Relation of Standing Waves on a Vertically Oscillated Thin Granular Layer(Cross-disciplinary Physics and Related Areas of Sciene and Technology)
- Passage of a Small Air Bubble through a Circular Pore across the Plate of Finite Thickness
- Deformation of a Neutrally Buoyant Drop of Magnetic Fluid Excited Non-intrusively by an External Magnetic Field
- Pattern Formation on the Vertically Vibrated Granular Layer
- Wavelength Selection Mechanism of Ripples in Vertically Vibrated Thicker Granular Layer
- Passage of a Small Sphere through a Cleft of Endothelia with Pivoted Glycocalyx
- Deformation of a Liquid Drop Due to Rotation. II. Hydrodynamical Analysis of the Velocity Field at Relatively Low Rate of Rotation
- Critical Velocity for the Collapse of a Cavity Region in a Granular Material and Its Size Dependence
- Initial Condition Dependence on the Onset and Growth of Sand Ripple Due to Steady Uni-Directional Viscous Flow