Joshua Thomas

Using COMSOL Version 6.1 to Plot Non-Converged Results During Compute Attempts

As an engineer have you ever found yourself in a situation where you’re trying to track non-converged results by plotting solution variables that you would expect to behave in a certain way, but you’re not sure how to modify the initial values? In our latest Tips & Tricks video, I take you through a scenario …

Using COMSOL Version 6.1 to Plot Non-Converged Results During Compute Attempts Read More »

Extending the Number of Characters Stored in the Log with COMSOL Version 6.1

In some cases, the information in the log file of a simulation is lost when the maximum number of characters in the log file is exceeded. In this video tip, we show how to increase the maximum number of characters to provide access to important data. To help you follow along, we have included the …

Extending the Number of Characters Stored in the Log with COMSOL Version 6.1 Read More »

Continuity Pairs for Electrical and Thermal Contact

Thermal stresses are an important design concern for many engineering applications.  When temperatures change, materials can deform or warp leading to the build-up of internal stresses even without the presence of external constraints which can further increase thermal stresses.  Modeling and simulation can calculate the deformations, stresses and changing contact pressures using thermal-structural interaction techniques.  …

Continuity Pairs for Electrical and Thermal Contact Read More »

Use of Computational Simulation of Medical Technology – Part 7

Multiphysics Modeling of Cooled RF Ablation In previous blog posts, we have provided extensive discussion on the Use of Computational Simulation of Medical Technology[1].  To provide a specific demonstration, this blog post will focus on describing the implementation of a multiphysics simulation of a cooled RF ablation (C-RFA) device. Traditional vs Cooled RF technology Traditional …

Use of Computational Simulation of Medical Technology – Part 7 Read More »

Temperature-Dependent Coefficients of Thermal Expansion

Making accurate physics predictions using simulations requires a knowledge of the material properties and how to implement them correctly in the software. This is particularly important in analyses involving thermal expansion when the coefficients of thermal expansion (CTEs) of the materials vary significantly with temperature. For example, optical devices that operate in the vacuum of …

Temperature-Dependent Coefficients of Thermal Expansion Read More »