Caty Fairclough | June 4, 2015
Heat sinks are components designed to cool off devices by dissipating heat. They can be used passively or in active cooling systems combined with fans for example. When optimizing heat sink designs, you can turn to simulation for guidance. But what if you could simplify the design process by embedding your model in an app? You can — and the Heat Sink with Fins demo app is here to get you started.
Henrik Sönnerlind | June 3, 2015
Your finite element model will sometimes contain singularities — that is, points where some aspect of the solution tends toward an infinite value. In this blog post, we will explore the common causes of singularities, when and how to remove them, and how to interpret results when singularities are present in your model. While most of this discussion is in terms of structural mechanics, similar phenomena can also be found in many other physics fields.
Caty Fairclough | June 1, 2015
Happy birthday to the Paris-born “father of thermodynamics”, Nicolas Léonard Sadi Carnot. A talented physicist and engineer, Carnot channeled his interest in steam engines into the creation of a theoretical thermodynamic cycle called the Carnot cycle. Through this theory, Carnot laid the groundwork for the second law of thermodynamics, which relates to entropy and heat loss and is still relevant in physics and engineering today.
Walter Frei | May 27, 2015
Whenever we are solving a wave electromagnetics problem in COMSOL Multiphysics, we build a model that is composed of domains and boundary conditions. Within the domains, we use various material models to represent a wide range of substances. However, from a mathematical point of view, all of these different materials end up being handled identically within the governing equation. Let’s take a look at these various material models and discuss when to use them.
Brianne Costa | May 25, 2015
Chemical vapor deposition (CVD) is popular in the semiconductor industry for its ability to produce high-quality, pure, and extremely strong materials. Ultra-high vacuum CVD (UHV/CVD) requires complex equipment and very high temperatures. To increase efficiency and control costs, engineers can simulate this complex process. Here, we use the growth of silicon wafers as an example.
Alon Grinenko | May 20, 2015
In an earlier blog post, we considered the computation of acoustic radiation force using a perturbation approach. This method has the advantage of being both robust and fast; however, it relies heavily on the theoretical evaluation of correct perturbation terms. The idea behind the method presented here is to solve the problem by deducing the radiation force from the solution of the full nonlinear set of Navier-Stokes equations, interacting with a solid, elastic microparticle.
Walter Frei | June 2, 2015
The COMSOL Conference is a great way for those in the simulation community to learn about COMSOL Multiphysics® software and its family of products. This year’s multiphysics simulation event will feature a variety of new learning opportunities for conference attendees. See what’s on the schedule for the COMSOL Conference 2015 at its first two stops — Boston and Grenoble.
Caty Fairclough | May 28, 2015
Simulating fatigue offers valuable insight into how stress can affect the longevity of a structure and its components. This can help identify potential design problems and pave the way for the development of a safer structure. Arriving at this solution, however, often requires running several simulations to test different scenarios. Our Frame Fatigue Life demo app demonstrates how simulation apps can save you time and energy in evaluating the impact of fatigue.
Caty Fairclough | May 26, 2015
Cars have to exist in a variety of environmental conditions. They need to handle environmental changes such as temperature fluctuations. Therefore, it is important to create parts that can handle these conditions. An investigation into the functionality of an inductive position sensor was presented during the COMSOL Conference 2014 in Cambridge.
Bridget Cunningham | May 21, 2015
Truck-mounted cranes are designed to handle heavy loads. With this in mind, manufacturers and engineers look to optimize the machine’s payload, or carrying, capacity. Simulation apps can help expedite the optimization process by extending simulation capabilities into the hands of those who are not experts in simulation through a customized and intuitive interface. Our Truck Mounted Crane Analyzer demo app shows the benefits of this approach.
Mark Robins | May 19, 2015
In the science and engineering community, models are vital to design and development. But can models be protected by copyright law? Establishing the level of creativity required for copyright protection is relatively easy in comparison to patent law, which requires inventions to be novel and non-obvious. Additionally, copyright law does not require the secrecy measures needed to qualify for trade secret protection. We explore the appeal of using copyright to protect models and the functionality built around them.