Computational Fluid Dynamics (CFD) Blog Posts
Designing District Heating Networks Using Topology Optimization
District heating networks help power plants reach high efficiencies by utilizing cogeneration, which is especially helpful in the winter. How does topology optimization fit in? Keep reading…
Modeling Droplet Flow in an Open Space with COMSOL Multiphysics®
If you are jogging six feet apart from someone else, should you both be wearing masks? Simulation was used to analyze the motion of particles between two runners in an open space to find answers.
How Does This Lip Gloss Appear to Defy Gravity?
We attempt to explain a mysterious, gravity-defying phenomenon involving a viral video, dielectric materials, electrostatics, and lip gloss.
Optimizing an NIV Mask Design with Multiphysics Simulation
NIV masks offer a form of noninvasive monitoring and ventilation for COVID-19 patients, which lessens the need for ventilators and other mechanical respirators.
6 Ways Engineers Are Using Simulation to Help the Environment
Energy-efficient buildings and appliances. Safe nuclear waste storage. Well-preserved freshwater lakes. These are just a few examples of how simulation is being used to help the environment.
Modeling and Simulation of Multiphase Flow in COMSOL®: Part 1
Multiphase flow can be modeled on scales ranging from fractions of microns to tens of meters. Get an overview of the dispersed and separated multiphase flow models for different types of flow.
Thermal Equilibrium and Nonequilibrium Heat Transfer in Porous Media
Heat transfer in porous media can occur under thermal equilibrium, such as a rock consisting of different minerals or trapped fluids, or nonequilibrium, like a thermal energy storage (TES) unit.
Modeling Darcian and Non-Darcian Flow in Porous Media
Get an introduction to the theory behind modeling flow in porous media, including the Kozeny–Carman, Forchheimer, Ergun, Burke–Plummer, and Navier–Stokes equations.
How to Simulate Control Systems Using the PID Controller Add-In
A PID controller can be used in a variety of industries. This blog post demonstrates how a PID controller add-in can be easily incorporated in two simulation examples.
Finding the Best Way to Make Crêpes with Fluid Dynamics Research
The recipe for the perfect crêpe calls for flour, eggs, milk, sugar, butter, and…simulation? Fluid dynamicists used simulation to solve the optimal coverage problem for crêpe making.
Building a Magnetohydrodynamic Multiphysics Model in COMSOL®
Magnetohydrodynamic models call for fluid dynamics and electromagnetics couplings. To do so, you can set up bidirectional couplings between all physics equations or building a simplified model.
Introduction to Modeling Acoustic-Structure Interactions in COMSOL®
To model an ASI problem, you need to account for the behavior of elastic waves in solids, pressure waves in fluids, and their interaction. The COMSOL® software includes interfaces for doing so.
Optimizing PID Controller Performance with COMSOL Multiphysics®
PID controllers involve three components that must work together simultaneously, and it can be challenging to get each of them just right. That’s where process control simulation comes in.
Speeding Up DNA Separation in a Microchannel via Simulation
DNA separation takes a long time using traditional methods. Now, researchers from the Missouri University of Science and Technology have found a faster way to get the job done.
Calculating the Heat Transfer Coefficient for Flat and Corrugated Plates
What is the heat transfer coefficient, and how do you calculate it? This blog post includes a theoretical background and demonstration of 2 examples in COMSOL Multiphysics®.
Modeling Fluid-Structure Interaction in Multibody Mechanisms
To model advanced FSI scenarios, such as swimming mechanisms or airflow around a wind turbine blade, you can use the Fluid-Structure Interaction, Pair multiphysics coupling.
Veryst Combines Material Testing and Simulation for Reliable Results
Simulation helps companies develop the best designs. Understanding material behavior plays a key role in generating accurate simulations. Here’s how Veryst combines testing and FSI simulation.
Simulation Applications Enable Digitalization at ABB Traction Motors
Here’s a real-world example of optimizing R&D processes with COMSOL Server™: At ABB Traction Motors, engineers use simulation applications to analyze CFD and heat in electric motor designs.
Keynote Video: Optimizing Cable Systems via Simulation
The length of cable for a mode of transportation depends on the amount of passengers, so a car uses ~5 km of cable and a cruise ship uses ~5000 km. Learn more about cable system design here.
Keynote Video: EPFL Uses Simulation to Design a Hyperloop Pod
The EPFLoop team used multiphysics simulation to design the aeroshell, pressure vessel, and braking system of their hyperloop pod for the SpaceX 2018 competition. Get an inside look here.
Simulating Fluid-Structure Interaction in a Ball Check Valve
Simulate FSI in a ball check valve to find the flow rate, fluid pressure, and fluid velocity. The COMSOL® software includes a predefined multiphysics coupling that makes it simple.
2 Mesh Adaptation Methods: Enabling More Efficient Computations
Why adapt your mesh? For one thing, it helps you solve your computational problems more efficiently. Here, we show you 2 methods for adapting your mesh in COMSOL Multiphysics®.
Evaluating a Fire-Resistant Overpack for Nuclear Waste
Confinement system overpacks are used to safely store radioactive waste. Sogin uses heat transfer modeling to design safe and reliable overpacks that are resistant to fire.
Simulating Multiphase Flow in Porous Media with a Low Permeable Lens
Modeling phase transport helps you study the multiphase flow through a porous medium (such as groundwater through soil).