Simulate Three-Phase Flow with a New Phase Field Interface

Ed Fontes | December 16, 2015

In COMSOL Multiphysics version 5.2, the CFD and Microfluidics modules include a new fluid flow interface for modeling separated three-phase flow. The model behind this fluid flow interface accounts for surface tension between each pair of fluids, contact angles with the walls, as well as the density and viscosity of each of the fluids. The phase field method computes the shape of the interfaces between the three phases and also accounts for interactions with walls.


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Bjorn Sjodin | December 15, 2015

In version 5.2 of COMSOL Server™, you can now launch apps much faster and configure the browser to run only one dedicated app. The Application Libraries, available in both COMSOL Multiphysics and COMSOL Server™, have been significantly updated with lots of examples for you to use and get inspired by when creating your own apps.


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Caty Fairclough | December 10, 2015

When the loudspeaker was first introduced, it fascinated listeners by translating electricity into amplified sound. Since that time, the device continues to be recognized for its innovative properties, while undergoing improvements and finding new uses. On this day, which marks 100 years since the first public display of a loudspeaker, we explore the device’s rich history and simulation’s role in advancing its design.


Bjorn Sjodin | December 8, 2015

In the Application Builder, included with COMSOL Multiphysics version 5.2, the new Editor Tools window makes it possible to create simulation apps with a lot fewer clicks of the mouse. In this blog post, we will demonstrate how to create an app with Editor Tools using a simple simulation example, as well as show how to perform common user interface creation tasks more easily.


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Søren Vedel | December 3, 2015

When developing a new product or functionality, the first step is typically to understand the functional properties in isolation. To achieve reliable and accurate predictions via mathematical modeling, it is essential that the critical components, test setup, and boundary conditions are specified in great detail. Most engineers, however, would prefer to focus on the critical components rather than “irrelevant” boundary conditions. New impedance boundary conditions in the Acoustics Module of COMSOL Multiphysics help to close this gap.


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Ed Gonzalez | December 1, 2015

In structural mechanics, you may want to specify user-defined material models in your simulation. COMSOL Multiphysics® software version 5.2 enables you to access material models derived from external libraries as well as material functions programmed by yourself. We demonstrate how the new functionality works with the example of implementing Mazars’ model to describe damage to concrete.


Bridget Cunningham | December 14, 2015

The demand for better performance and increased accuracy in touchscreen devices is growing. Simulation, a fast and cost-effective approach to product development, helps to meet this goal. With each design modification, colleagues will typically rely on you to run simulation tests, awaiting your feedback before reaching out to customers. As researchers at Parade Technologies (formerly Cypress Semiconductor) have discovered, creating apps and distributing them to colleagues is a valuable way to save time and more effectively communicate with customers.


Phillip Oberdorfer | December 9, 2015

When a vehicle rapidly accelerates or brakes, the liquid within its tanks moves back and forth, producing dynamic forces and splashing — a process known as sloshing. Using COMSOL Multiphysics, a team of simulation engineers at IAV found that these forces could be efficiently reduced through the numerical optimization of the internal wave breakers, without impeding the fluid supply. Today, we’ll explore this force reduction approach and the principles behind it with our own tank geometry example.


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Caty Fairclough | December 7, 2015

Microchannels are versatile structures that can be used for thermal management. One way to optimize heat transfer within such systems is by adding a pin fin heat sink to the microchannel configuration. Applying this approach, a team of researchers created a novel pin fin design, analyzing its heat transfer efficiency with COMSOL Multiphysics. They presented their innovative work at the COMSOL Conference 2015 Boston.


Fanny Littmarck | December 2, 2015

Healthcare-associated infections (HAI) affect millions of people around the globe. While the most common cause of HAI is direct contact with the source, airborne bacteria may also play a role in patient infections. To prevent airborne infection and make hospital clean rooms safer, it’s important to design efficient ventilation systems. As an added benefit, efficient ventilation designs also lead to lower energy-related costs. The first step to a better design is CFD modeling.


Deepa Krishna | November 30, 2015

Just a few weeks ago, the COMSOL Conference — the premier event for multiphysics simulation — made a stop in Pune, India. Around 270 attendees gathered for the two-day conference, which included more than 25 training courses, along with user presentations, industry talks, and panel discussions. Take a look at this collection of photos from the event.


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