Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 18, issue 1
Articles | Volume 18, issue 1
https://doi.org/10.5194/nhess-18-303-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-18-303-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 1
Research article
 | 
22 Jan 2018
Research article |  | 22 Jan 2018

Comparing thixotropic and Herschel–Bulkley parameterizations for continuum models of avalanches and subaqueous debris flows

Chan-Hoo Jeon and Ben R. Hodges

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Short summary
This work shows that a multiphase flow solver using a multi-material level-set method with yield-stress models of non-Newtonian viscosity provides a means for numerical approximation of avalanches and subaqueous debris flows. This simulation approach was tested with both time-independent and time-dependent models of viscosity. Moreover, two different approaches were used to evaluate the Coussot parameters. Overall, the numerical results showed reasonable agreement with prior experimental data.
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