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Andromeda, a BEM code

Solves Laplace diffusion and Stokes flow problems with the Boundary Element Method

written by Jure Ravnik, http://kepoi.fs.um.si/en/p/jure-ravnik

Papers written using this method:

  • A. Šušnjara, O. Verhnjak, D. Poljak, M. Cvetković, J. Ravnik (2021). Stochastic-deterministic boundary element modelling of transcranial electric stimulation using a three layer head model. Engineering Analysis with Boundary Elements, Volume 123, 1 February 2021, Pages 70-83 doi:10.1016/j.enganabound.2020.11.010

  • Anna Šušnjara, Ožbej Verhnjak, Dragan Poljak, Mario Cvetković, Jure Ravnik (2022). Uncertainty quantification and sensitivity analysis of transcranial electric stimulation for 9-subdomain human head model. Engineering Analysis with Boundary Elements (2022), Vol 135, Pages 1-11, doi:10.1016/j.enganabound.2021.10.026

  • Jure Ravnik, Mitja Štrakl, Jana Wedel, Paul Sterinamnn, Matjaž Hriberšek: Stokes Flow Induced Drag and Torque on Asbestos Particles can not be estimated by a Simplistic Ellipsoidal Approximation, to appear in 2022

  • Štrakl, M., Hriberšek, M., Wedel, J., Steinmann, P., Ravnik, J. (2022). A Model for Translation and Rotation Resistance Tensors for Superellipsoidal Particles in Stokes Flow. J. Mar. Sci. Eng. 2022, 10, 369. doi:10.3390/jmse10030369

Installation & test:

sudo apt-get update
sudo apt install gfortran make libblas-dev liblapack-dev mpich
git clone https://github.com/WildSmilodon/Andromeda.git
cd Andromeda/src
make
cd ../run
./runAll

Uses LIS, blas and mpich libraries

Download and installation of LIS library from: https://www.ssisc.org/lis with modified header file, see ./inc/lisf.h

Paraview is used for results postprocessing

  • Install Paraview
sudo apt-get update
sudo apt-get install paraview
  • Open *.vtu files with Paraview to visualise results

Input files

  • and.inp - main input file
  • problemName.bic - boundary and initial conditions file
  • problemName.msh - mesh file

Mesh files

Andromeda uses meshes produced by gmsh https://gmsh.info/

  • Install gmsh
sudo apt-get update
sudo apt-get install gmsh
  • Look at examples to study *.geo files, which are an input for gmsh or examine gmsh user manual
  • To produce *.msh needed by Andromeda run gmsh -2 meshName.geo

Getting help

  • running Andromeda with -h command line argument displays help.