Abstract
We report a series of ongoing large-scale experiments to studythe interaction of a snow avalanche with a dam and a row of mounds which are of a comparable height to the flow depth.The experimental results indicate that the behaviour of thesupercritical flow around the obstacles is governed by the large-scale properties of the flowing avalanche rather than micro-scaleproperties of the granular current.The experiments show that, similarly to smaller-scale experimentswith glass particles, the avalanche detaches from the top of the dam or mound and forms a coherentairborne jet, which can be modelled as a two dimensional ballistic projectile with negligible air resistance.We study the two parameters that define the trajectory of thejet, namely the speed at which the jet is launched from the top of the obstacle and the deflection of the jet by the obstacle, and compare the resultswith a theory for the deflection of a jet of an ideal fluid.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
