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...
Nur Mujid Abdullah
Volcanic plume simulation using ATHAM
12 Oct 2014 | Contributor(s):: Nial Peters, Alex Hoffman, Talfan Barnie, Michael Herzog, Clive Oppenheimer
These simulation runs were carried out in order to produce sets of synthetic SO2 camera images which could be used for validating SO2 flux calculation algorithms. Results from two model runs are provided: a "closed top" run which had a rigid boundary at the top of the domain, and an...
Plumeria_wd--Fortran open-source version
out of 5 stars
06 Dec 2011 | Contributor(s):: Larry Garver Mastin
This is an open-source Fortran version of Plumeria, a one-dimensional steady-state model for volcanic plumes. It calculates plume properties such as upward velocity, radius, density, mass fractions of particles, air, water vapor, liquid water and ice, as a function of height in a plume. The...
Plates vs. Plumes Debate
07 Oct 2011 | Contributor(s):: Gillian Rose Foulger
Early in the 21st century, scientists became increasingly skeptical about the deep-mantle plume hypothesis. This postulates that unusual volcanism results from thermal diapirs ("plumes") that originate at the core-mantle boundary and deliver hot material via narrow conduits to Earth's surface....
Dirty plumes, tephra dispersion and deposition
29 Jan 2011 | | Contributor(s):: Shannon Kobs Nawotniak
This lecture is part of the Large-scale Experiments Workshop held in September, 2010.
Tephra2 Source Code
14 Jul 2010 | | Contributor(s):: Chuck B Connor, Leah Michelle Courtland
Tephra2 uses the advection diffusion equation to forecast tephra dispersion in a given location based on a user-defined set of eruptive conditions.Tephra2 codes are now maintained on GitHub: https://github.com/geoscience-community-codes/tephra2 Available are:1-processor...