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Methods of similitude in granular avalanche flows

Tai, Yih-Chin ; Wang, Yongqi ; Gray, J. M. N. T. ; Hutter, Kolumban
Hrsg.: Hutter, Kolumban ; Wang, Yongqi ; Beer, Hans (1999)
Methods of similitude in granular avalanche flows.
In: Advances in Cold-Region Thermal Engineering and Sciences: Technological, Environmental, and Climatological Impact Proceedings of the 6th International Symposium Held in Darmstadt, Germany, 22–25 August 1999
Buchkapitel, Bibliographie

Kurzbeschreibung (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.

Typ des Eintrags: Buchkapitel
Erschienen: 1999
Herausgeber: Hutter, Kolumban ; Wang, Yongqi ; Beer, Hans
Autor(en): Tai, Yih-Chin ; Wang, Yongqi ; Gray, J. M. N. T. ; Hutter, Kolumban
Art des Eintrags: Bibliographie
Titel: Methods of similitude in granular avalanche flows
Sprache: Englisch
Publikationsjahr: 1 Januar 1999
Ort: Berlin, Heidelberg
Verlag: Springer
(Heft-)Nummer: 533
Buchtitel: Advances in Cold-Region Thermal Engineering and Sciences: Technological, Environmental, and Climatological Impact Proceedings of the 6th International Symposium Held in Darmstadt, Germany, 22–25 August 1999
Reihe: Lecture Notes in Physics
URL / URN: http://dx.doi.org/10.1007/BFb0104200
Kurzbeschreibung (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.

Zusätzliche Informationen:

DOI: 10.1007/BFb0104200

Fachbereich(e)/-gebiet(e): Studienbereiche
16 Fachbereich Maschinenbau
16 Fachbereich Maschinenbau > Fachgebiet für Strömungsdynamik (fdy)
Studienbereiche > Studienbereich Mechanik
Hinterlegungsdatum: 30 Aug 2011 14:37
Letzte Änderung: 08 Aug 2019 12:44
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