Modeling the Speed and Stealth of the Darkstar
COMSOL » Fluid & Heat
by Ed Fontes
1M ago
I watched the latest Top Gun movie, Top Gun: Maverick a few weeks ago. It is a really awesome movie, and it is also cutting edge from an engineering standpoint. The movie starts with Maverick, played by Tom Cruise, working as a test pilot preparing to fly a new secretly developed airplane, the Darkstar, capable of flying Mach 10. Simultaneously, Rear Admiral Chester Cain, played by Ed Harris, makes his way to the test base to shut down the program — considering the Darkstar had not yet been able to fly Mach 10, which was a requirement for the project to continue — but Maverick takes action bef ..read more
Visit website
Examining an Air Filter with a RANS Turbulence Model
COMSOL » Fluid & Heat
by Joseph Carew
3M ago
HVAC systems do more than provide the smooth, chilled air that flows when the temperature outside rises. Within these systems, air moves through filters to ensure high air quality. With clean air at stake, modeling and simulation can be used to gain an in-depth understanding of the physics behind the behavior of air as it moves through a filter… Modeling an Air Filter The filters within HVAC systems rely on a material (often fiberglass or cotton folds) capable of straining the air and catching particulates like dust, pollen, and bacteria. These materials impact the flow of the air, catching th ..read more
Visit website
Modeling Acoustic Energy Generation in Thermoacoustic Engines
COMSOL » Fluid & Heat
by Tsukasa Ishii
3M ago
Thermoacoustic engines generate acoustic energy from a thermal input. In contrast to commonly used engines such as reciprocating engines and gas turbines, thermoacoustic engines do not use moving parts, which keeps the structure very simple. In this blog post, we will see how the working mechanisms of thermoacoustic engines can be modeled with the Thermoviscous Acoustics interface, one of the powerful interfaces in the COMSOL Multiphysics® software for modeling the linearized behavior of a fluid. How Thermoacoustic Engines Work More than 150 years ago, Professor Pieter Rijke reported an i ..read more
Visit website
How Well Do Mosquito Traps Work? Observing Their Effectiveness with Particle Tracing
COMSOL » Fluid & Heat
by Beth Beaudry
7M ago
When the weather is nice and warm, nature attracts adrenaline-seeking hikers and happy campers alike. However, where there is vegetation, there are also mosquitoes waiting to find their next target. So what’s a camper to do? Mosquito traps can be effective, so long as mosquitoes find them more appealing than any nearby sources of blood. For fun, let’s turn to equation-based modeling to see if a camper’s trap will keep his cabin in the woods cozy and mosquito-free — or if the insects will kill the camping buzz. Mosquito Magnets: Carbon Dioxide and Lactic Acid There are various reasons why femal ..read more
Visit website
Using Simulation to Guide mRNA Vaccine Production
COMSOL » Fluid & Heat
by Joseph Carew
10M ago
Lipid nanoparticles (LNPs) are used in a variety of pharmaceutical applications, including viral vaccines, cancer therapies, analgesics, and photodynamic therapies. In recent times, they have gained public attention for their use in mRNA vaccines, specifically. The mRNA vaccine delivery efficacy depends on the size of the LNPs and dosing: small LNPs are better at penetrating tissue and high doses are required due to low delivery yield. Researchers could run iterative experiments to meet these requirements, but a team from Veryst Engineering proposed that a simulation-guided design process woul ..read more
Visit website
The Heat is On: Modeling Temperature Distribution in a Sauna
COMSOL » Fluid & Heat
by Magnus Ringh
1y ago
Finland is the home of the sauna; in fact, the word “sauna” is Finnish and is used in English and other languages for what is typically a small room designed as a place to experience heat. In addition to being popular in Finland, saunas are enjoyed in many parts of the world. Classical saunas provide a dry heat that may reach or exceed 100°C (212°F) using an electrical or wood-fired stove. In this blog post, we will explore the heating and temperature distribution in such a sauna using a model created with the COMSOL Multiphysics® software. The Physics of a Sauna When using a dry sauna, a stov ..read more
Visit website
Validating Transonic Flow Results with the ONERA-M6 Wing Model
COMSOL » Fluid & Heat
by Fanny Griesmer
1y ago
Simulation is a convenient medium for running experiments, as you can run a lot of tests relatively quickly and cost effectively, fewer wind tunnels required. To show that you can trust the results when modeling transonic flow, we have created a validation model based on the famous ONERA-M6 wing. Modeling Flow at Transonic Speeds with COMSOL Multiphysics® When you add the CFD Module to the COMSOL Multiphysics® simulation platform, you gain access to functionality that is specialized for modeling fluid flow, including various predefined physics interfaces. Broadly speaking, physics interfaces d ..read more
Visit website
Modeling the Pulsed Laser Heating of Semitransparent Materials
COMSOL » Fluid & Heat
by Walter Frei
1y ago
It’s quite common to use focused laser light to rapidly heat materials for various purposes, including within the semiconductor processing industry. Here, we will look at a Gaussian profile laser beam with periodically pulsed intensity, heating up two different semitransparent materials deposited onto a silicon substrate. To model this, we will solve a multiphysics modeling problem using the temperature field and the Beer–Lambert law. Let’s further explore the model and see how to set it up… A Gaussian Profile Laser Beam Illuminates a Silicon Wafer We will use an example of a two-inch diameter ..read more
Visit website
Intro to Modeling Transient Heating of Solids in COMSOL Multiphysics®
COMSOL » Fluid & Heat
by Walter Frei
1y ago
The COMSOL Multiphysics® software is often used for modeling the transient heating of solids. Transient heat transfer models are easy to set up and solve, but they aren’t without their difficulties to work with. For example, the interpretation of their results can confuse even the advanced COMSOL® user. In this blog post, we’ll explore a model of a simple transient heating problem and use it to gain an in-depth understanding of these nuances. A Simple Transient Heating Problem Figure 1 shows the modeling scenario that is the topic of discussion for this blog post. In this scenario, a spatially ..read more
Visit website
Computing Orbital Heat Loads with COMSOL Multiphysics®
COMSOL » Fluid & Heat
by Walter Frei
1y ago
With COMSOL Multiphysics® version 6.1, we are happy to announce the release of a new interface that computes radiative loads on satellites in orbit. This Orbital Thermal Loads interface is part of the Heat Transfer Module and is used for defining satellite orbit and orientation, orbital maneuvers, and varying planetary properties. This interface is used to compute the solar, albedo, and Earth infrared thermal loads, which are then used to compute satellite temperature over time. Let’s learn more! Background Satellite thermal design is a challenging problem. A satellite is composed of many part ..read more
Visit website

Follow COMSOL » Fluid & Heat on FeedSpot

Continue with Google
Continue with Apple
OR