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dc.contributor.authorIssler, Dieter
dc.date.accessioned2020-03-18T15:39:11Z
dc.date.available2020-03-18T15:39:11Z
dc.date.created2020-03-16T09:07:23Z
dc.date.issued2020
dc.identifier.citationGeosciences. 2020, 10 (3), 96-96.
dc.identifier.issn2076-3263
dc.identifier.urihttps://hdl.handle.net/11250/2647438
dc.description.abstractThis note first summarizes the history of the manuscript “On a Continuum Model for Avalanche Flow and Its Simplified Variants” by Grigorian and Ostroumov—published in this Special Issue—since the early 1990s and explains the guiding principles in editing it for publication. The changes are then detailed and some explanatory notes given for the benefit of readers who are not familiar with the early Russian work on snow avalanche dynamics. Finally, the editor’s personal views as to why he still considers this paper of relevance for avalanche dynamics research today are presented in brief essays on key aspects of the paper, namely the role of simple and complex models in avalanche research and mitigation work, the status and possible applications of Grigorian’s stress-limited friction law, and non-monotonicity of the dynamics of the Grigorian–Ostroumov model in the friction coefficient. A comparison of the erosion model proposed by those authors with two other models suggests to enhance it with an additional equation for the balance of tangential momentum across the shock front. A preliminary analysis indicates that continuous scouring entrainment is possible only in a restricted parameter range and that there is a second erosion regime with delayed entrainment.
dc.description.abstract
dc.language.isoeng
dc.subjectAvalanche-RnD
dc.subjectSnøskred-FoU
dc.titleComments on “On a Continuum Model for Avalanche Flow and Its Simplified Variants” by S. S. Grigorian and A. V. Ostroumov
dc.typeOthers
dc.description.versionpublishedVersion
dc.source.pagenumber96-96
dc.source.volume10
dc.source.journalGeosciences
dc.source.issue3
dc.identifier.doi10.3390/geosciences10030096
dc.identifier.cristin1801761
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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