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Visualizzazione post con etichetta avalanches. Mostra tutti i post
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venerdì 25 giugno 2021

# gst: apropos of transitions, tsunami waves generated by granular collapses.

<< Tsunami waves induced by landslides are a threat to human activities and safety along coastal areas. In this paper, (AA) characterize experimentally the waves generated by the gravity-driven collapse of a dry granular column into water. Three nonlinear wave regimes are identified depending on the Froude number Fr_f based on the ratio of the velocity of the advancing granular front and the velocity of linear gravity waves in shallow water: transient bores for large Fr_f, solitary waves for intermediate values of Fr_f, and nonlinear transition waves at small Fr_f. >>️

Wladimir Sarlin, Cyprien Morize, et al. Nonlinear regimes of tsunami waves generated by a granular collapse.    
Journal of Fluid Mechanics, 919, R6. doi:10.1017/ jfm.2021.400. May 28, 2021. 


James Badham. The Science of tsunamis. University of California. Santa Barbara. Jun 21, 2021. 


Froude number (Fr_f)


Also

keyword 'grain' in FonT


keyword 'grani' in Notes (quasi-stochastic poetry)


keyword 'waves' in FonT


keyword 'onda' in Notes (quasi-stochastic poetry)