Results 151 to 160 of about 169,331 (209)

Shokotsu River ice jam formation

Cold Regions Science and Technology, 2003
A spring ice jam occurred in the Shokotsu River in March 1995. This has been the only known ice jam in this river since 1955. This paper discusses the ice jam processes and investigates the causes of the Shokotsu River ice jam by analyzing the available hydrometeorological data as well as hydraulic and geometric characteristics of the river.
Hung Tao Shen, Lianwu Liu
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River ice jams

Canadian Journal of Civil Engineering, 1998
This book is intended to provide knowledge of the iscientific and engineering methods [used] to solve many problems posed by ice jamsi within ia single, comprehensive source,i as much of this information is currently iscattered in diverse journals, conference proceedings, and technical reports (p.
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Bend ice jams: laboratory observations

Canadian Journal of Civil Engineering, 1992
Presented herein are the results of laboratory experiments aimed at obtaining preliminary insights into characteristic features of ice jams in river bends. The experiments, which focused on jams comprising a continuum of ice pieces small compared to river width, were carried out using a curved flume and polypropylene beads to simulate ice pieces. They
Gilberto E. Urroz, Robert Ettema
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Formation of Ice Covers and Ice Jams in Rivers

Journal of the Hydraulics Division, 1966
Ice covers on rivers are stressed in the downstream direction mainly by the friction of the under flow and the effect of the slope of the water line. Analysis show that in wide rivers, these stresses are the main factor governing the equilibrium thickness of the cover.
Ernest Pariset, René Hausser, André Gagnon   +2 more
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River Ice Dynamics and Ice Jam Modeling

2001
This paper presents the formulation, numerical method, and field applications of a numerical model for dynamic transport and jamming of surface ice in rivers. The model considers the ice as a continuum. The internal ice resistance is described by a viscous-plastic constitutive law, in which the pressure term is formulated by modifying the Coulomb type ...
Hung Tao Shen, Lianwu Liu, Yi-Chin Chen
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Downstream Transition of River Ice Jams

Journal of Hydraulic Engineering, 1986
The granular mass theory of river ice jams is extended to their downstream transition as a means of improving understanding of conditions at jam toe. The theory is coupled with the equations of motion under, and seepage through, the jam and the resulting differential equations are solved numerically.
Spyros Beltaos, Jonathan Wong
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Modeling the destruction of ice jams

Journal of Applied Mechanics and Technical Physics, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Odinokov, V. I., Prokudin, A. N.
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Hydraulic resistance of river ice jams

Journal of Hydrodynamics, 2018
The hydraulic resistance of river ice jams consists of the resistance due to the seepage flow through the jam and the resistance due to the shear stress on the undersurface of the jam. Existing empirical formulations attributed the entire jam resistance to the undersurface resistance of the jam, but relate the jam resistance to jam thickness with ...
Lin Fan, Ze-yu Mao, Hung Tao Shen
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Theoretical Model of River Ice Jams

Journal of the Hydraulics Division, 1976
A mathematical analysis is developed to describe the evolution and characteristics of river ice jams. The principal components of the analytical model are the static force equilibrium of the fragmented ice cover; the unsteady continuity equations for the frozen and liquid water; the nonuniform unsteady momentum relation for the flow; and relations in ...
Mehmet S. Uzuner, John F. Kennedy
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Equilibrium Thickness of Ice Jams

Journal of the Hydraulics Division, 1977
By equating the kinetic energy of ice floes carried by a stream to the potential energy they acquire when submerged, a relationship was derived between the mean velocity of the approach flow and the average thickness of the stable ice jam formed only by accumulation and transport of floes.
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