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How to Place Inlet and Outlet Boundary Conditions in CFD Simulations
When setting up fluid flow simulations, at what distance can we apply boundary conditions without interfering with the process? Here, we discuss how to place inlet and outlet boundary conditions.
How Do Chladni Plates Make It Possible to Visualize Sound?
Is it possible to see sound? Find out for yourself in this blog post on the acoustics behind Chladni plates.
Examining Heat Transfer in a Friction Stir Welding Process
Friction stir welding (FSW) is an efficient, cost effective, and environmentally friendly process that can be optimized by studying the heat transfer involved via modeling.
Describing Viscoelastic Behavior with an Oldroyd-B Benchmark
The Oldroyd-B model is used to define viscoelastic behavior in fluids such as clay, toothpaste, and oil. We present a benchmark model for a fluid with viscoelastic behavior under strain.
Predicting the Stability of Rotor Systems with the COMSOL® Software
Instability in a rotor system can lead to catastrophic failure. Fortunately, engineers can predict the stability of rotor systems by performing stability analyses with the Rotordynamics Module.
Modeling a Tubular Reactor for Optimized Polymer Manufacturing
Chemical engineers can model tubular reactors to optimize them for specific manufacturing and production processes, such as for the polymerization of polyester, as this example shows.
Analyzing Cyclic Voltammetry at a Microdisk Electrode with Simulation
What is cyclic voltammetry, and why is it important in the design of microdisk electrodes? We discuss all of this and more in this electrochemical engineering blog post.
How to Provide Structural Stability in Thermal Expansion Simulations
Say you want to compute thermal expansion and stresses in an object, but you don’t know what constraints you need. That’s where the Rigid Motion Suppression feature comes in.
Modeling Copper Electrodeposition on a Circuit Board
Copper electrodeposition is used to manufacture PCBs. Here, we discuss modeling the electrodeposition of copper in the trench of a PCB.
How to Set Up a Mesh in COMSOL Multiphysics® for CFD Analyses
As a flow mechanics specialist preparing a mesh for CFD analysis, the geometry supplied by a CAD team is often exactly what you do not want. So, what do you do?
Analyzing Multiphase Flow in an Airlift Loop Reactor Benchmark Model
This blog post features a benchmark model of an airlift loop reactor that validates the use of CFD simulation for analyzing multiphase flow.
How to Search for a Specific COMSOL Multiphysics® Application
The Application Libraries in the COMSOL® software contain a variety of examples that demonstrate specific features and modeling techniques. Learn how to quickly search for a specific one.
Analyzing Wastewater Contaminant Removal in a Secondary Clarifier
1 potential way to ensure sustainable water access is by developing safe and efficient wastewater clarifiers. Engineers can use fluid flow simulation to develop optimized clarifier systems.
How to Use the Boundary Element Method in Acoustics Modeling
Learn advantages and strategies for using the boundary element method (BEM) for acoustics modeling. Plus, we go over a hybrid approach that combines BEM with the finite element method (FEM).
Analyzing the Deformation of a Biomedical Stent with Simulation
By studying deformation in an arterial stent, biomedical engineers can account for unwanted effects like dogboning and foreshortening long before the device is ever implanted.
Optimizing Thermophotovoltaic Designs with Heat Transfer Simulation
Thermophotovoltaic (TPV) systems, known for their flexible fuel choice options, immovable parts, and potential for efficient power generation, can be optimized with heat transfer modeling.
Analyzing the Viscous and Thermal Damping of a MEMS Micromirror
Micromirrors are efficient and inexpensive. Here, we go over 2 types of analyses for a MEMS micromirror design, frequency-domain and transient, using the COMSOL® software.
Evaluating the Performance of a Steam Reformer with Simulation
To design a steam reformer for hydrogen production, you need to couple mass, energy, and flow equations. The Chemical Reaction Engineering Module can account for this true multiphysics problem.
How to Model Fluid-Structure Interaction in a Water Balloon
They’re not just for playing games in the backyard: Water balloons are also an example of fluid–structure interaction in a nonlinear elastic material. Learn how to model this effect…
The Internet of Space Takes Off with Advanced Antenna Designs
You’ve heard of the Internet of Things, but what about the Internet of Space, which change how we share information and communicate worldwide. A key aspect of this concept: antenna designs.
What Happens If I Use 2 Different Unit Systems in 1 Simulation?
Using 2 different unit systems for 1 project has led to historical disasters. Fortunately, you can use different unit systems in your simulation without issues by using the COMSOL® software.
How to Implement Elastoplasticity in a Model Using External Materials
Sometimes the mechanical behavior of a material is not readily expressed in terms of a built-in model. In these cases, you can use external materials. Learn how with an elastoplasticity example.
Computing Porosity and Permeability in Porous Media with a Submodel
Porous materials have complex geometries and may therefore be difficult to model. Setting up a microscale submodel is a useful approach to find the porosity and permeability of the medium.
Analyze the Electrodynamics of a Magnetic Power Switch via Simulation
The AC/DC Module can be used to simulate electrodynamic devices, such as magnetic power switch circuit breakers. Follow along with this discussion to study the working principles of the device.