User Story Gallery

Here you will find success stories from leading high-tech organizations and research institutions from around the world. Discover innovative products that have been designed using multiphysics simulation in a variety of application areas including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find stories relevant to your area of expertise, and to learn how multiphysics simulation can be used to enhance your designs.

Additional Users Stories can be found in the 2014 edition of COMSOL News. view it now in your browser

A 100-Fold Improvement in Lithography Resolution Realized with a 150-Year-Old “Perfect Imaging” System

Juan Carlos Miñano and Dejan Grabovičkić
Cedint Polytechnic University of Madrid
Spain

The idea of "perfect imaging", that is a resolution less than the wavelength of light producing the image, was first proposed in the mid-19th century by famed Scottish physicist James Clerk Maxwell. For the next 150 years, it was widely believed that such was impossible due to the fact that light diffracts around points that are the same size or smaller in wavelength. Then, in 2009, Ulf ...

Silent Air Cooling: A New Approach to Thermal Management

Nels Jewell-Larsen,
Tessera Technologies, CA, USA

Removing heat from electronic devices is a necessity that up until now was achieved by rotary fans. Tessera, a company that delivers innovative miniaturization technologies and products for next-generation electronic devices, developed a replacement for rotary fans that can satisfy demanding space and noise constraints. They designed a silent air cooling system that uses an electric field to ...

MRI Tumor-Tracked Cancer Treatment

Gino Fallone and colleagues
Cross Cancer Institute
Edmonton, AB, Canada

Radiation therapy targeting in cancer treatment involves many uncertainties, including the movement of targeted sites due to breathing and the like. Magnetic resonance imaging (MRI) can accurately identify the location of a tumor in soft tissue, but unfortunately its magnetic field can interfere with radiation treatment delivered by a linear particle accelerator (Linac). A team of researchers at ...

Simulation of Magnetic Flux Leakage Inspection

Oliver Nemitz
Salzgitter Mannesmann Forschung, Duisburg, Germany

Salzgitter Mannesmann Forschung (SZMF) advances testing methods for the Salzgitter Group, a leading company that works with the manufacture of, among other things, pipes. In the manufacturing of heavy steel tubing, it is important maintain quality, which is done through conduct non-destructive testing (NDT) using large magnets to identify flaws (magnetic flux leakage inspection). Oliver Nemitz ...

Dielectric Stress Simulation Advances Design of ABB Smart Grid-Ready Tap Changers

Tommi Paananen, David Geibel, Bill Teising, Mårten Almkvist, Jon Brasher, Josh Elder, Bob Elick and Chris Whitten
ABB Alamo
Tennessee

Consumers of power rely on fairly stable voltages. Transformers contain tap changers which vary the ratio of secondary to primary turns by switching the point at which either the input or output circuits are connected. Changing this ratio enables stepped voltage regulation of the output. As the world moves toward the modernized smart grid, the tap changer’s design must be altered to make it ...

Submarines: Corrosion Protection or Enemy Detection?

David Schaefer
University of Duisburg-Essen, Duisburg, Germany

Germany's Technical Center for Ships and Naval Weapons, Bundeswehr, Germany

Submarines create underwater electric potential (UEP) signatures when using corrosion protection systems. These signatures are detectable by enemy vessels, an undesirable effect of the corrosion protection. Germany’s Technical Center for Ships and Naval Weapons (WTD 71) has worked with the Laboratory for General and Theoretical Electrical Engineering (ATE) at the University of Duisburg-Essen ...

Understanding the Origin of Uncertainty in Thermometer Calibration

Jonathan Pearce
National Physical Laboratory
UK

Thermometers have widespread application and like any measurement device, they must be calibrated. Many do this with the International Temperature Scale of 1990 (ITS-90), which is a platinum resistance thermometer that calibrates using a fixed point cell, which is a container with a well running through its center for insertion of the thermometer. The container has a material of 99.9999% purity. ...

Pumping and Injecting from a Single Borehole

Prof. Martin Sauter, Ph.D Student Yulan Jin, and Assoc. Prof. Ekkehard Holzbecher
Georg-August-University, Göttingen, Germany

Professor Dr. Martin Sauter leads a group at the University of Göttingen in research on hydrogeology. Cooperating with Hölscher Wasserbau, a leading German dewatering company, the group is studying düsensauginfiltration (DSI), which is a technique for lowering groundwater levels at mining or construction sites. Traditionally, dewatering involves the transportation of water away from the site, ...

Analysis and Simulation of Rock Properties

VSG, Burlington, MA, USA

VSG provides high-performance 3D visualization toolkits and software for a number of industries, including materials science and geosciences. One application of their technology is with American oil and gas reserves. The difficulty of accessing these sites has forced the industry to turn to the technique of injecting fluid under pressure into rock deposits. This technique requires knowledge of ...

Modeling of Laminar Flow Static Mixers

Nagi Elabbasi, Xiaohu Liu, & Stuart Brown
Veryst Engineering LLC, Needham, MA, USA

Mike Vidal & Matthew Pappalardo
Nordson EFD, East Providence, RI, USA

Veryst Engineering, a company that provides consulting in engineering design and product manufacturing, has collaborated with Nordson EFD, one of the leading manufacturers of precision dispensing systems, to optimize their static mixers. Static mixers are inexpensive and efficient mechanisms for mixing laminar viscous fluids, where molecular diffusion is minimal. Here, the fluids must be ...

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