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All posts by Magnus Ringh

How to Manage Multiple Solutions in COMSOL Multiphysics®

May 10, 2017

3 ways to manage multiple solutions in COMSOL Multiphysics®: Combine 2 solutions into 1, store the solutions in different data sets, or join the solutions to compare them.

Finding the Best Coal Arrangement for Even Heat in a Grill

January 25, 2017

Pizza on the grill? It’s actually quite delicious. Here, we use heat transfer modeling to determine how the grill’s coals should be arranged for even heating.

Why Doesn’t the Ice Cream in a Baked Alaska Melt?

November 18, 2016

One dessert that is sure to amaze your dinner guests is the baked Alaska. This classic treat consists of ice cream placed on a bed of sponge cake and covered in meringue. Although the dessert goes into a hot oven to caramelize the meringue, the ice cream inside surprisingly remains frozen. In this blog post, we use the heat transfer simulation capabilities of the COMSOL Multiphysics® software to find out how the baked Alaska works.

Minimize Your Model File Size with Storing Solution Techniques

September 2, 2016

A COMSOL Multiphysics® simulation typically includes one or more field quantities in its output. Depending on the number of field quantities, the geometry’s complexity, and the mesh density required for valid results, simulations can include millions of degrees of freedom (DOFs). Oftentimes, storing one or more scalar quantities or the results on a small geometry part is sufficient. Here, we explore tools for storing selected output quantities and minimizing model file sizes and the time required to display this data.

Plotting the Algebraic Residual to Study Model Convergence

April 27, 2016

You can use the residual operator, new with COMSOL Multiphysics version 5.2, to evaluate and plot your model’s algebraic residual in order to troubleshoot convergence issues. This blog post demonstrates the use of the residual operator for visualizing and understanding the convergence properties of a turbulent flow simulation.


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