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All posts by Fabrice Schlegel

Model How the Bubbles in a Glass of Stout Beer Sink, Not Rise

March 17, 2016

Ever notice how the bubbles in certain kinds of stout beer sink to the bottom of the glass instead of rising to the top? We explain this phenomenon using fluid flow simulation.

Optimize NACA Airfoil Designs with a Simulation App

January 13, 2016

You can design a simulation app to accurately compute lift and drag forces and optimize any airfoil following the NACA naming convention. Learn more and see an example demo app.

Using the Boussinesq Approximation for Natural Convection

April 7, 2015

Today, we compare the Boussinesq approximation to the full Navier-Stokes equations for a natural convection problem. We also show you how to implement the Boussinesq approximation in COMSOL Multiphysics software and discuss potential benefits of doing so.

Predicting Cavitation in Journal Bearings

January 30, 2015

When designing journal bearings for use in a rotating shaft, the effect of cavitation needs to be considered, because it can affect the performance of these components.

Improving the Beer Brewing Process with Simulation

September 26, 2014

Which side of home beer brewing are you more interested in: The culinary side, like the recipes and ingredients, or the engineering one, like the conjugate heat transfer and chemical reactions?

Understanding Stabilization Methods

May 30, 2014

When modeling transport applications driven by convection, you need a stabilization method — whether you’re working with finite elements, finite volumes, or finite differences.

Modeling Electroosmotic Flow and the Electrical Double Layer

October 28, 2013

Microfluidic devices are so small that the micropumps and micromixers that control and mix the fluid inside the device cannot involve any moving components. Instead, they must take advantage of electroosmotic flow. Here, I will describe the concept of electroosmosis and the electrical double layer (EDL), and how to model these in COMSOL, walking you through two example models.

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