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Heat Transfer & Phase Change Blog Posts

Cable Simulations Spark New Developments at Prysmian Group

June 3, 2014

Energy and telecom cables often journey through harsh environments to reach their destinations. Some cables are responsible for carrying high currents and must navigate in conditions that include high thermal loads, mechanical loads, and limited ventilation. We recently published a story in the IEEE Spectrum Insert, Multiphysics Simulation, explaining how the Prysmian Group, a leader in developing cable systems across many industries, has begun using COMSOL Multiphysics to improve their development process, save resources, and optimize their cable designs.

Heat Transfer in Deformed Solids

May 28, 2014

In a previous blog post, we presented the applications of conjugate heat transfer involving immobile solids. The case of immobile solids simplifies the heat equation to be solved and is often a good approximation to the temperature field. Today, we will complete the description of the physics that account for thermoelastic effects of the material when heat transfer and solid mechanics are coupled.

Hyperthermic Oncology: Hyperthermia for Cancer Treatment

May 27, 2014

High temperatures can be used to destroy tumor cells, a cancer treatment known as hyperthermic oncology. Although the idea behind this treatment method has been around for some time, it wasn’t until recently that new tools and more precise delivery of heat has allowed hyperthermia to be used for cancer treatment. As hyperthermic oncology studies continue, simulation has proven a valuable tool for achieving a deeper understanding of how to deliver heat to tumors while limiting damage to healthy tissue.

Powerful Packaging for Electronics in Extreme Environments

May 16, 2014

The power electronics industry is responsible for products used by billions of people: smartphones, televisions, certain car parts, and even components in motors and household objects. With such a diverse array of applications, many design requirements are considered during the making of these products, including power and energy density, cost, and customer safety. Arkansas Power Electronics International (APEI), a USA-based company, is refining designs for power packaging to control thermal management in power electronics devices, increase efficiency, and lower cost.

Defining Curvilinear Coordinates for Anisotropic Materials

March 11, 2014

A lot of materials have anisotropic properties and, in many cases, the anisotropy follows the shape of the material. The COMSOL Multiphysics® software offers different methods for defining curvilinear coordinate systems. Here, we discuss the concepts of each and when to use which method.

How to Model Thermoviscous Acoustics in COMSOL Multiphysics

February 28, 2014

When modeling acoustics phenomena, particularly of devices with small geometric dimensions, there are many complex factors to consider. The Thermoviscous Acoustics interface offers a simple and accurate way to set up and solve your acoustics model for factors such as acoustic pressure, velocity, and temperature variation. Here, we will demonstrate how to model your thermoviscous acoustics problems in COMSOL Multiphysics and provide some tips and resources for doing so.

Buoyancy-Driven μPCR for DNA Amplification

February 26, 2014

DNA is a complex molecule that contains instructions for life and often referred to as a “digital fingerprint” or code telling a cell what to do. DNA is often the only means for accurate testing and identification of biomolecules, cells, or even an entire person during forensic investigations. The need to be able to test for DNA, as quickly as possible, and even at the site where the sample is taken, is becoming more and more important.

Amphos 21: Modeling Coupled Thermo-Hydro-Mechanical-Chemical Phenomena

February 18, 2014

Today, we are pleased to introduce a new guest author, Jorge Molinero of Amphos 21, a COMSOL Certified Consultant, who blogs about their new iCP technology. Along with several other parties, we at Amphos 21 have launched iMaGe, a multiphysics and geochemistry interfacing platform. The platform’s first product, iCP, connects COMSOL and PHREEQC, enabling the modeling of coupled Thermo-Hydro-Mechanical-Chemical phenomena.


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