Fluid mechanics, Multiphase flows, Heat and mass transfer, Rheology, Numerical simulation, Multi-scale modelling, High performance computing
Assistant Professor
CHBE 437
Institut National Polytechnique de Toulouse, 2010, HDR
Grenoble, 2000, PhD
Grenoble, 1997, M. Fluid Mech.
Louis Pasteur University, Strasbourg, 1996, B.Eng.
Research Interests

Scientific fields of expertise

• Fluid Mechanics, Solid Mechanics and Rheology.
• Complex flows : non-Newtonian, reactive, turbulent.
• Multiphase Flows : liquid/solid, liquid/liquid, liquid/ gaz.
• Thermodynamics and Heat Transfer.
• Applied Mathematics.
• Numerical Analysis and Simulation (FEM, FVM, DEM).
• Scientific Programming: Fortran, C/C++, MPI.
• High Performance Parallel Computing.


Selected publications
(1) Z. Yu, X. Shao and A. Wachs, A fictitious domain method for particulate flows with heat transfer,
Journal of Computational Physics, 217(2), 424-452, 2006.
(2) A. Wachs, PeliGRIFF, a parallel DEM-DLM/FD direct numerical simulation tool for 3D particu­
late flows,Journal of Engineering Mathe atics, 71(1), 1-25,2010.
(3) A. Wachs, Rising of 3D catalyst particles in a natural convection dominated flow by a parallel
DNS method, Computers & Chemical Engineering, 35(11), 2169-2185, 2011.
(4) A. Wachs, L. Girolami, G. Vinay, and G. Ferrer, Grains3D, a flexible DEM approach for par­
ticles ofarbitrary convex shape- Part I: numerical model and validations, Powder Technology,

224, 374-389, 2012.
(5) M. Rahmani and A. Wachs, Free falling and rising of spherical and angular particles, Physics of Fluids, 26, 083301, 2014

CHBE 554 Momentum, Heat and Mass Transfer