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Methods of similitude in granular avalanche flows

  • Snow Thermo-Mechanics, Avalanches
  • Conference paper
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Advances in Cold-Region Thermal Engineering and Sciences

Part of the book series: Lecture Notes in Physics ((LNP,volume 533))

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Abstract

Snow avalanches are relatively dry and dense granular flows for which the Savage-Hutter (SH) equations have been demonstrated to be an adequate mathematical model. We review these equations and point out for which cases the equations have been tested against laboratory experiments. Since the equations are scale invariant and because agreement with experiments is good, laboratory experiments can be used to test realistic flows. This is detailed in this paper. We demonstrate how shocks are formed when dilatational flow states merge into compacting states and show that shock formation is an essential mechanism in flows against obstructions. We finally apply the theory of similitude to the design of a projected avalanche protection structure of the Schneefernerhaus at the Zugspitze.

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References

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Kolumban Hutter Yongqi Wang Hans Beer

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© 1999 Springer-Verlag

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Tai, YC., Wang, Y., Gray, J.M.N.T., Hutter, K. (1999). Methods of similitude in granular avalanche flows. In: Hutter, K., Wang, Y., Beer, H. (eds) Advances in Cold-Region Thermal Engineering and Sciences. Lecture Notes in Physics, vol 533. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0104200

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  • DOI: https://doi.org/10.1007/BFb0104200

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-66333-1

  • Online ISBN: 978-3-540-48410-3

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