Yasuaki Nohguchi - Academia.edu (original) (raw)

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Papers by Yasuaki Nohguchi

Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research, 2013

Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research, 2016

Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research, 2017

Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research, 2015

Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research, 2018

Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research, 2017

Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research, 2015

Preprints of the Annual Conference, Japanese Society of Snow and Ice, 2007

Preprints of the Annual Conference, Japanese Society of Snow and Ice, 2004

Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research, 2014

Annals of Glaciology, 1989

Flow avalanches may be regarded as being composed of a granular fluid. When dislodged, the snow m... more Flow avalanches may be regarded as being composed of a granular fluid. When dislodged, the snow masses accelerate down a slope until the inclination of its bed tends towards the horizontal, at which stage bed friction eventually brings the snow to rest. We present a completely new analysis of the motion of a finite mass of granular material along an inclined base. We regard a granular snow mass as an incompressible continuum to which a Coulomb-like basal friction law can be applied. Depth-averaged equations of motion are formulated in terms of a curvilinear coordinate system along a curved bed, and incorporate an averaged longitudinal velocity and a height distribution. A numerical finite-difference technique is employed to integrate these equations. We present numerical results obtained for motion along a curved bed and compare this with the solutions of the equations with results from laboratory observations. The experiments have been performed in order to monitor the motion of a ...

Acta Mechanica, 1993

Summary This paper is concerned with the motion of an unconfined finite mass of a granular materi... more Summary This paper is concerned with the motion of an unconfined finite mass of a granular material released from rest on an inclined plane. The granular mass is treated as a frictional Coulomb-like continuum with a Coulomb-like basal friction law. Depth averaged equations are deduced from the three-dimensional dynamical equations by scaling the equations and imposing the shallowness assumption that