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General Blog Posts

Geometry Modeling in Simulation Apps

January 8, 2015

COMSOL applications created with the new Application Builder will make sophisticated simulations based on parameterized CAD models more accessible than ever before. A COMSOL application allows easy access to not only parameterized models but also completely different geometry configurations, such as a mixer with a variable number of impeller blades or a variable number of impellers. To make this easy for the application developer, we have made available cumulative selections and geometry parts. See how these tools work.

Implementing the Weak Form in COMSOL Multiphysics

January 6, 2015

This blog post is part of a series aimed at introducing the weak form with minimal prerequisites. In the first blog post, we learned about the basic concepts of the weak formulation. All equations were left in the analytical form. Today, we will implement and solve the equations numerically using the COMSOL Multiphysics simulation software. You are encouraged to follow the steps with a working copy of the COMSOL software.

Biomechanical Model Evaluates Human Response to Vibrations

December 31, 2014

Depending on their magnitude and frequency, vibrations can be a source of discomfort and even pain for the human body. The impact of these vibrations is surely felt, but wouldn’t it be interesting to visualize how different parts of the human body respond when placed in such an environment? We introduce you to a multibody model that enables you to analyze the body’s dynamic response to vibrations.

Visualizing Fluid Flow with Streamline Plots

December 29, 2014

Last month, we saw examples of contour plots (and their 3D counterparts, isosurfaces) that were created to show the stress in a pulley and the acoustic frequency in a loudspeaker. In this installment of the postprocessing series, we’ll explore the use of streamlines to visually describe fluid flow.

Maximum Evaluations on Parallel Sections

December 24, 2014

In a previous blog entry, we shared a postprocessing technique for creating an animation by combining parallel slices in a 3D steady-state model. Today, we will look at another postprocessing trick: how to evaluate and plot the maximum (or the minimum, average, or integration) value of any variable at various parallel sections along the axial coordinate.

Fillet Away Your Electromagnetic Field Singularities

December 18, 2014

No matter how much you refine the mesh at that corner in your geometry, the electromagnetic field that you are computing never seems to settle on a converged value. Is this a problem? If so, what can you do about it? Read on to find out.

Electroplating Simulations for Printed Circuit Board Designers

December 17, 2014

The printed circuit board (PCB) is the heart of almost any electronic product, carrying the components and copper wires supporting its functionality. The manufacture often involves electroplating, a process that can vary between designs. This leaves you, the engineer behind its simulation and optimization, constantly creating new models. What if you could push much of this work onto the designers, engineers, and technicians behind its design and manufacture, having them run their own electroplating simulations for PCBs? See how here.

Introducing the Design Module

December 15, 2014

Have you been interested in learning how to create fillets on 3D designs or how to generate shell approximations of imported geometric objects? The latest version of the COMSOL Multiphysics® software includes the new Design Module, which provides these and other tools for easier and more advanced geometric modeling. This optional add-on also includes interoperability tools for the import and export of CAD designs. Let’s take a look in more detail at what you can do with these new features.


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