Protecting Against Atmospheric Corrosion with Simulation

Thomas Forrister March 21, 2019

If you’ve ever lived in a humid area, you’re probably familiar with a phenomenon known as atmospheric corrosion — a common result of which is everyday rust. This type of metal corrosion happens frequently enough that professionals in construction and manufacturing regularly use some form of corrosion protection, even if it’s simply applying a coating to the metal. To efficiently analyze the corrosion process and optimize prevention techniques, engineers can use the COMSOL Multiphysics® software.

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Ed Fontes February 20, 2019

We’ve already determined that the concept of digital twins is more than just hype. In this blog post, we discuss how high-fidelity multiphysics models can be combined with lightweight models and measured data to create digital twins that can be used to understand, predict, optimize, and control the real system and the model of the real system. This is exemplified with a battery pack for hybrid vehicles.

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Emily Ediger December 25, 2018

Optimizing the food dehydration process can be tricky, but it is helpful and necessary for areas with food shortages. In his keynote presentation at the COMSOL Conference 2018 Lausanne, Thijs Defraeye of Empa discussed how his team uses multiscale modeling to understand the drying process for soft cellular foods. If you missed his talk, you can watch a video recording of the presentation and read a summary below.

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Shruti Srivastav November 13, 2018

Electroplating is commonly used for surface finishing due to its effectiveness across the automotive, electronics, corrosion protection, aerospace, and defense industries. Since WWII, the number of patents claiming to achieve “perfect plating” has increased exponentially. The focus of the narrative surrounding electrochemical plating has also shifted from complex chemical reactions toward perfecting operating conditions. In this blog post, we show how to achieve smoother metal surfaces during reverse pulse plating (RPP) using the COMSOL Multiphysics® software and add-on Electrodeposition Module.

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Henrik Ekström August 29, 2018

Ion-exchange membranes are widely employed within the field of electrochemical engineering. In polymer electrolyte fuel cells and vanadium flow batteries, they are used to conduct ions and at the same time prevent reactants and electrons from crossing between the two flow compartments. The ability to promote the passage of ions of either positive or negative charge is also used in electrodialysis for cleaning water from ions. In this blog post, we will explore the ion-selective capabilities of ion-exchange membranes.

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Siva Sashank Tholeti August 22, 2018

Sparging, a mass transfer process between a gas and a liquid, is commonly encountered in industrial applications such as beverage carbonation and photobioreactors, or even at home for aeration in aquariums. In this blog post, we detail how to model a type of sparging, carbonation, using the COMSOL Multiphysics® software.

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Guest Bojan Jokanović July 5, 2018

Guest blogger Bojan Jokanović of SGL Carbon GmbH, one of the world’s leading manufacturers of carbon-based products, discusses the optimization of thermal processes in the carbon industry. Carbon products are used in many industries, including semiconductors, car manufacturing, ceramics, and metallurgy. Properties of graphite including high-temperature stability, good thermal and electric conducting behavior, and high chemical stability make this material unique. However, carbon manufacturing is an energy-intensive industry. We must build digital process chains to optimize processes and minimize costs.

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Brianne Christopher July 4, 2018

Multijet tubular reactors are used to manufacture polymers such as polyester. The turbulent flow that occurs in this type of reactor can affect the manufacturing process, including the reaction kinetics, fiber quality, conversion, and yield. By developing a reactor model that fully takes into account both the fluid dynamics and chemical reactions, you can optimize a reactor design for efficient and reliable polymer production.

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Thomas Forrister July 3, 2018

In electrochemistry, it’s common to use a microdisk as the working electrode in an analytical technique known as cyclic voltammetry. However, unlike with a macroelectrode, diffusion at a microelectrode occurs very fast on the timescale of the experiment. To simplify the analysis, we can use an approximation that assumes the microdisk has stationary diffusion properties on the timescale of the voltammetry study — eliminating the need for a time-dependent model.

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Thomas Forrister June 27, 2018

Batch reactors are used to manufacture a wide variety of products in the fine chemical, pharmaceutical, and food industries. In some cases, fine chemical processing may require more consistent operating conditions than batch reactors can offer, and continuous plate reactors may then provide better control of the process. Chemical modeling can help in the design of continuous plate reactors that are optimized for thermal control and product purity.

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Caty Fairclough June 21, 2018

If you were to take apart almost any modern electronic product, you would find a printed circuit board (PCB). A closer look at this common component reveals a pattern of copper lines on its surface. These conducting lines can be created using a process called electrodeposition, which modifies device surfaces via electrochemical reactions. To enhance electrodeposition techniques for circuit board manufacturing, engineers can use numerical modeling.

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