AshFlow is a numerical code for the steady-state ash flow model, describing the propagation of a mixture of entrained air and volcanic ash with distance from source during an eruption. The system of equations is formally the same of that presented in Bursik and Woods 1996, i.e. the equations we formulate describe the same conservation principles (conservation of mass, momentum and energy). In this model, the specific heat and gas constant of the flow are solved at each iteration.
Samantha Engwell
Mattia de' Michieli Vitturi (@demichie)
Download the AshFlow package and create the executable with the following commands from a terminal:
./configure
make
make install
This will create the executable and copy it in the bin folder. You can test the executable copying it in the EXAMPLES folder and running it.
A wiki page describing the model is available at:
https://github.com/demichie/AshFlow/wiki
Doxygen generated documentation of the code can be found at:
http://demichie.github.io/AshFlow/html/
Engwell, S. L.; de' Michieli Vitturi, M.; Ongaro, T. E. & Neri, A. Insights into the formation and dynamics of coignimbrite plumes from one-dimensional models J. Geophys. Res. Solid Earth, Wiley-Blackwell, 2016, 121