Shear Evolution in Small Scale Avalanches, Fachbücher von Marius Schaefer
Snow avalanches and other gravitationally driven geophysical flows threaten people and infrastructure in mountainous regions.... Mehr erfahren
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Lieferzeit: 2-4 Werktage
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Snow avalanches and other gravitationally driven geophysical flows threaten people and infrastructure in mountainous regions. To provide good and efficient protective measures, a correct modeling of these natural hazards is necessary. Current modeling tools are rather empirical, calibrated with documented avalanche events. In this book the results of small-scale experiments are presented, which provide new insights into the physical processes taking place in snow avalanches and granular flows. Experiments on a snow chute revealed extremely high shear rates of up to 700/s in the lowest centimeter of snow flows, manifesting the shear thinning rheological behavior of snow. The observed flow structure in high-speed movies of the shear layer and the statistics of the computed velocity field suggest a turbulent flow behavior in the shear layer of the snow flows. With dry granular material stro.
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Lieferzeit:2-4 Werktage
Marke:Südwestdeutscher