The Computational multiphase flow laboratory | Laboratoire de calcul des écoulements polyphasiques at Polytechnique Montréal, specializes in computational fluid dynamics (CFD) with a focus on modelling and understanding multiphase flows, systems where different phases, such as gas-liquid or fluid-solid, interact dynamically. Our work bridges physical modelling and numerical computation to develop and utilize cutting-edge tools for predicting and analyzing these flows. Through our research, we aim to advance both fundamental understanding and practical applications of multiphase flow systems.
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News and recent developments
News and recent developments
September 15, 2026 | New peer-reviewed paper published
In a new article published (open access) in the Journal of Non-Newtonian Fluid Mechanics, we present a fully coupled implicit finite-volume method for the simulation of viscoelastic interfacial flows. Such flows are particularly challenging to compute at high elasticity, where numerical instabilities often limit conventional solution approaches. The new method solves the continuity, momentum, and polymer extra-stress equations together in a single coupled system and combines this formulation with a front-tracking method for the fluid interface. The approach retains the second-order accuracy of the underlying finite-volume discretisation and enables robust simulations over a wide range of elastic conditions. For a droplet in a shear-thinning viscoelastic liquid, simulations could be performed with a Weissenberg number of 10,000 without any numerical tricks, while simulations of a rising bubble reproduce the experimentally observed jump in terminal rise velocity and the associated negative wake. The results demonstrate the potential of fully coupled solution strategies for robust numerical simulations of strongly elastic interfacial flows.
May 27, 2026 | CSME-CFDSC Congress 2026
Fabian attended the joint congress of the Canadian Society for Mechanical Engineering (CSME) and the CFD Society of Canada (CFDSC) in Vancouver, 24-27 May 2026. He presented our recent work on the fluid dynamics of airtanker firefighting, which highlights the critical role of droplet size, release height, and atmospheric conditions in aerial firefighting operations. Moreover, he presented collaborative work with Mandeep Saini and Kevin Schmidmayer (Inria, France) on a new subgrid cavitation model that can capture key multiscale cavitation dynamics without the computational burden of interface-resolved simulations.
May 22, 2026 | C3SE-2026
We had a fantastic week at the 1st Canadian Congress on Computational Science and Engineering (C3SE-2026) in Montréal, which brought together researchers from across computational science, engineering, applied mathematics, and scientific computing. Fabian had the a privilege to serve as one of the organizers of this inaugural congress and to help bring together such a vibrant and interdisciplinary computational science community from across Canada and beyond. During the conference, Fabian also presented our recent work on the Conditional Quadrature Method of Moments (CQMOM) for particle-laden flows, focusing on numerical modeling approaches for complex polydisperse particulate systems. A big thank you to the over 140 participants, speakers, organizers, sponsors, and session chairs for helping make the first edition of C3SE such a success!
Our research is supported by:
Our research is supported by:
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