Hi all, I would like to announce the following seminar talk in our Clemson Computational Math seminar that is related to deal.II. If you are interested, feel free to join using the zoom link below.
Date and time: Friday, Feb 4 at 11:15am Eastern time Speaker: Bruno Blais (Polytechnique Montréal) Title: Lethe: Open-source FEM-based CFD and CFD-DEM models for the simulation, design and optimization of chemical processes Zoom link: https://clemson.zoom.us/j/96402109287 Abstract: Chemical process plants generally consist of a combination of multiple unit operations which all have a specific purpose: separating components, facilitating a chemical reaction, mixing, transferring energy from one fluid to another, moving fluids. The design of these operations is still mostly based on design heuristics which lead to significant challenges when designing new chemical processes or scaling-up existing ones. These challenges are exacerbated by the occurrence of turbulence, the complex rheology of the fluid or the presence of multiple phases such as a fluid (gas or liquid) and solid particles. Computational Fluid Dynamics (CFD) for the fluid phase, the Discrete Element Method (DEM) for granular material, and their combination (CFD-DEM) enable us to predict the dynamics of these unit operations. This requires high-performance robust models for which the components (linear solver, finite element formulation) are tailored to the application. In this talk, we introduce a new open-source CFD, DEM and CFD-DEM software: Lethe. Lethe is built upon the well-established deal.II library. It leverages deal.II not only for its state of the art FEM capabilities, but it also makes extensive usage of its high-performance particle tracking module for its DEM solver. We present four very different examples that highlight the challenges that the chemical engineering community face and that can be addressed through simulations: - The mixing of shear-thinning fluids. - The prediction of early turbulent flows. - The flow of powder. - The solid-fluid flow in a fluidized bed reactor. For each of these examples, we discuss the mathematical formulation that we use within Lethe as well as the technical challenges faced when developing the models. We conclude by providing a high-level perspective of the direction in which we are heading, the challenges that we are currently facing and the key lessons that have been learned through this endeavor to develop a CFD/DEM/CFD-DEM software. Best, Timo -- Timo Heister http://www.math.clemson.edu/~heister/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/CAMRj59GiPx%2Bz0A5%2B716HmOeOMLgGAEfAXsv1%3DS-fY95EA4jU_g%40mail.gmail.com.
