Fanny Littmarck | October 16, 2013
The COMSOL Conference 2013 Boston finished up on Friday last week. There were lots of excellent posters and user presentations, and some enriching conversations during the coffee breaks. On Thursday, our three keynote speakers took to the stage and treated us to each of their multiphysics simulation stories. Here’s a round-up of who presented and what they shared with the audience.
Walter Frei | October 15, 2013
In this first blog entry of our new solver series, we describe the algorithm used to solve all linear static finite element problems. This information is presented in the context of a very simple 1D finite element problem, but is applicable for all cases, and is important for understanding more complex nonlinear and multiphysics solution techniques to be discussed in upcoming blog posts.
Alexandra Foley | October 11, 2013
A Wilkinson power divider is a common three-port power splitter circuit that is used to split an input signal into two equal output signals, or to combine two signals into one. Unlike resistive or T-junction power dividers, a Wilkinson power divider allows for nearly complete isolation between the two ports and adds no resistive losses to the power split. Because of these characteristics, a Wilkinson divider is widely used in radio communication systems due to its ability to prevent crosstalk […]
Fanny Littmarck | October 8, 2013
A Gaussian beam that is striking an array of nanorods is an example of optical scattering. Consider metallic nanorods that are very close together and have a diameter much smaller than the wavelength of a Gaussian beam that falls upon them. If the beam were to be polarized along the rods, they would act as though they were not actually individual rods, but a sheet of metal. The array is nearly transparent to the wave when it is polarized perpendicular […]
Alexandra Foley | October 4, 2013
When designing products on the nanometer scale, physics interactions that are considered negligible on the larger scale make their presence known. One such case where these forces must be taken into account is in the design of integrated circuits, where understanding and optimizing the effects of van der Waals forces, attractive forces, and surface tension become vitally important to creating a robust design. As technological advancements call for both the size of integrated circuits to decrease and the density of […]
Alexandra Foley | October 2, 2013
For 60 years, the technology manufacturer KOSTAL Group has been implementing various electrical systems in cars, making your driving experience more enjoyable. For instance, the Automotive Electrical Systems division of KOSTAL placed indicator switches near the steering wheel and created integrated-function push buttons. Over the years, their patents and designs have become more complex and revolutionary. Currently, they are working on optimizing the design of their roof modules for premium cars using mechatronic simulation.
Phil Kinnane | October 14, 2013
On Thursday evening of the COMSOL Conference 2013 Boston, winners of the top papers and posters were presented with their awards. Reading through their papers and posters, I noticed a common theme: they all included experimental validation of their simulation results. While modeling provides crucial insight and understanding, as well as the opportunity to design and optimize your applications and processes, its credibility often depends on whether results test well against known results. The award winners at the multiphysics conference […]
Andrew Griesmer | October 9, 2013
The process of quenching a red-hot metal object in a cool liquid bath is simple in practice, but highly complicated when creating a simulation. There are several phases of liquid quenching, and here we will focus on the initial phase: film boiling. In the accompanying video, COMSOL Certified Consultant AltaSim Technologies details the steps taken to model a nickel superalloy puck that is quenched in a tub of oil.
Alexandra Foley | October 7, 2013
Last month, COMSOL Certified Consultant Veryst Engineering was featured in Software Tech Briefs, a special supplement to NASA Tech Briefs. Veryst is known to leverage multiphysics simulation software for analyzing LED lighting designs and other complex industrial problems. The project mentioned in the article focused on building a thermofluid-mechanical model of an LED light bulb in order to explore and optimize thermal management techniques within the bulb.
Pär Persson Mattsson | October 3, 2013
The future of high performance computing (HPC) is in clusters and parallel computing. The last single processor computers on the TOP500 list disappeared in 1997 — more than 15 years ago. Clusters allow us to compute larger and more detailed models faster than ever before, but taking the step into the world of HPC can be a challenge. A lot of time, money, and research must be invested when building a cluster from scratch. What kind of hardware should the […]
Alexandra Foley | October 1, 2013
Laminar static mixers are used for the accurate mixing of fluids (both liquid and gas). Unlike a mixer containing moving blades, a static mixer contains twisted stationary blades that are positioned at different angles throughout the cylindrical flow channel of the mixer. When a fluid is pumped through the channel, the alternating directions of the cross-sectional blades cause the fluid to become mixed as it passes along the length of the channel. This mixing technique allows for precise control over […]