# COMSOL Blog

## Meet the COMSOL Conference 2013 Program Chairs

##### Bernt Nilsson | April 8, 2013

The COMSOL Conference Program Chair is a special person. It is a person to envy. Wouldn’t you like to connect with the top multiphysics simulation experts, study their coolest applications, and showcase their work in the limelight of the COMSOL Conference 2013? I certainly would — but that is the role of the Program Chair.

### Discrete Fracture in Rocks

##### Cinzia Iacovelli | April 5, 2013

Have you ever noticed how water can flow through rocks and leave a trace of its passage by covering the surface with a patina, like white stripes? The whole process is quite complex but can roughly be explained by breaking it down into two coupled effects: gravity and chemical reactions. Gravity causes the water to infiltrate through discrete fractures (hard rocks) or pores (sedimentary rocks), until it charges the groundwater supply below to a point where excess water will surface […]

### Structural Mechanics Tutorials: Adding Initial Strain and Thermal Stress

##### Andrew Griesmer | April 4, 2013

Back in January, I presented a video tutorial introducing the Structural Mechanics Module here on the blog. The video described the steps necessary to perform a static linear analysis on a bracket geometry. Now, to help you better understand the extra functionalities that exist within COMSOL Multiphysics and the Structural Mechanics Module, we are also creating additional tutorial videos of this bracket. The first two “mini-tutorials” to accompany the static linear analysis video focus on adding initial strain and thermal […]

### Structural Analysis with Thin Elastic Layers

##### Chandan Kumar | April 3, 2013

Some structural applications involve thin or high aspect ratio structures sandwiched between other relatively low aspect ratio structures. For example, if a piezoelectric transducer is glued on the surface of a mechanical system, the thickness of the adhesive layer is very small in comparison to the two structures it glues together. Numerical modeling of such a thin layer in two or three dimensions requires resolving it with an appropriate finite element mesh. This can result in a large concentration of […]

### Computing the Inductance of a Straight Wire

##### Walter Frei | April 2, 2013

A question that comes up occasionally is whether or not you can compute the inductance of a single straight wire. This seemingly simple question actually does not really have an answer, and gives us the opportunity to talk about a very interesting point when solving Maxwell’s equations. Anybody working in the field of computational electromagnetics should have an understanding of this key concept, as it will help you properly set up and interpret models involving magnetic fields.

### Magnetic Bearings

##### Fanny Littmarck | April 1, 2013

In the world of bearings, there are many different types to choose from. For certain applications, magnetic bearings trump their mechanical counterparts in several regards. In order to understand how the bearing will perform, using a simulation tool to calculate design parameters is a good idea.

### Smart Materials Innately Transduce Energy, How Smart

##### Fanny Littmarck | March 29, 2013

Smart materials are able to convert one form of energy to another. These materials can be either solid or fluid, and are typically located within what’s called a smart structure. What makes these materials and structures so “smart”? Let’s find out.

### Tell All Your Friends About the COMSOL Conference 2013

##### Kristen O'Connor | March 28, 2013

As many of you may know, we have officially announced the dates for the COMSOL Conference 2013. Did you also know that we are continuously sharing updates, deadline reminders, past published Conference User Presentations, and more through social media? Follow our social pages to make sure you have up-to-date information regarding the Conference (among other things) — don’t forget to share this content with your friends and colleagues, too.

### The Graphene Revolution: Part 2

##### Daniel Smith | March 27, 2013

In a previous blog entry I discussed some of the exotic properties of graphene. The fact that graphene consists of a single layer of atoms means the aspect ratio of any graphene-based structure may be very high. High aspect geometries present their own array of modeling challenges.

### Modeling Temperature of a Wine Cellar

##### Valerio Marra | March 26, 2013

A lot of effort is put into inventing or improving existing technologies used to cool buildings, food, or any goods that need to be stored at a definite temperature. The reason is simple: adopting more efficient designs will result in achieving the same goal while consuming less energy. Both our balance sheet and the environment will benefit from these solutions. Here we will explore modeling temperature of a passive cooling design using a wine cellar as an example.