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14 Aug 2015 | Contributor(s):: Matteo Cerminara, Tomaso Esposti Ongaro
A fluid-dynamic model is developed to numerically simulate the non-equilibrium dynamics of polydisperse gas-particle mixtures forming volcanic plumes. Starting from the three-dimensional N-phase Eulerian transport equations for a mixture of gases and solid particles, we adopt an asymptotic...
Sequential fragmentation/transport model applied to Irazu volcano, Costa Rica. Positive dispersion case
21 Mar 2015 | Contributor(s):: Jose Brenes
Sequential fragmentation/transport model was applied to ash deposits of 1723 eruption of Irazu volcano, Costa Rica. Some 25% of the sub-populations showed positive dispersion values, which were associated to a new fractal dimension,. With the help of Mandelbrot fractal relationship...
Thomas Ryan Knott
22 Feb 2014 | | Contributor(s):: Matthew Daggitt, David Pyle, Tamsin Alice Mather
Calculates exponential, power law and Weibull distributions for tephra volumes from isopach data.
07 May 2014 | | Contributor(s):: Fabio Dioguardi, Pierfrancesco Dellino, Daniela Mele
PYFLOW is a multi-block code for the calculation of the flow field variables of dilute pyroclasticdensity currents (hereafter DPDCs) starting from the deposits characteristics. The code, written inFortran 90, solves an improved version of the model of Dellino et al. (2008): it calculates...
Pooja Vinod Kshirsagar