Thermal Conduction in a L-Shape domain
This first simple example allows to demonstrate the basic features of Stabfem for importing and plotting results from FreeFem++ programs
StabFem is both a Matlab/Octave interface to the FreeFem++ software allowing to use this powerful PDE solver within a practical working environment, and a set of programs devoted to study instability and wave phenomena in fluid mechanics.
This section presents a number of commented programs allowing to easily understand the implementation principles.The programs are published in html form but the corresponding .m files are all available from the project repository.
This first simple example allows to demonstrate the basic features of Stabfem for importing and plotting results from FreeFem++ programs
This second example demonstrates how to use StabFem to perform the basis steps of a linear stability analysis : generation of an adapted mesh, computation of a base flow, computation of eigenmodes, and plotting the results.
This example shows how to use StabFem to perform a DNS. We consider again the flow around a cylinder at Re=60.
This example demonstrates how to use StabFem to solve a linear acoustics problem, namely wave radiation from a cylindrical pipe opening to a semi-infinite domain.
This example shows how to use StabFem to compute eigenmodes in a free-surface problem
In this program we demonstrate how to study the development of Bénard-Von Karman vortex street in the wake of a cylinder using nonlinear global approaches : Weakly Non Linear (WNL) and Harmonic-Balance (HB) approaches
This section presents a number of programs reproducing the main results of a number of published research papers.
These three programs reproduce all the figures from the review paper
A practical review on linear and nonlinear global study of fluid flow instabilities" by D. Fabre et al.
This program reproduces the main results of the following research paper : "Acoustic and hydrodynamical instability of the jet flow through a finite thicnkess hole" by R. Longobarddi, D. Fabre, V. Citro & P. Luchini (JFM, submitted, 2019)
This program reproduces the main results of the following research paper : "Oscillations of a liquid bridge resulting from the coalescence of two droplets", by V. Chireux, D. Fabre, F. Risso & P. Tordjemann (Phys. Fluids, 27(6):062103, 2015)
This program reproduces the main results of the following research paper : "On the instabilities of a potential vortex with a free surface", by J. Mougel, D. Fabre, L. Lacaze & T. Bohr (J. Fluid Mech. 824, 230-264 2018)
The StabFem project is hosted by the Institute of Fluid Mechanics in Toulouse (IMFT). It is developed as a collaborative project and currently involves contributors from IMFT and Università di Salerno.
List of current contributors / users :
- David Fabre (IMFT)
- Maxime Pigou (IMFT)
- Vincenzo Citro (UNISA)
- Diogo Ferreira Sabino (ONERA / IMFT)
- Javier Sierra (IMFT)
- David Lo Jacono (IMFT)
- Flavio Giannetti (UNISA)
You may reach us directly from the gitlab repository, or through our mailing-list.