Simulating Complex Boundary Motion with Generalized Internal Boundaries (GIB)

WEBINAR ON DEMAND Simulating Complex Boundary Motion with Generalized Internal Boundaries (GIB) This webinar presents an overview of GIB technology and how it applies to large scale motion within CFD simulations. Simulating complex boundary motion can be crucial when evaluating product performance, and in some cases extremely challenging to perform. Rigid body simulations with large […]

Simulating the “Porpoising” Phenomenon Using HELYX

Amongst the most significant changes that the 2022 FIA regulations brought to Formula 1 are those directly related to the aerodynamic design of the car. With attention focused on the revolutionary 3D-contoured underfloor, the teams now heavily rely on its efficient design to produce the majority of the car’s total downforce. This new tunnel-style underfloor, […]

How to Simulate the Piston Effect in Train Tunnels

Why do you have to yawn or swallow to equalize the pressure in your ears when travelling through a tunnel? It’s all to do with a phenomena called the piston effect. What is the piston effect? When a train enters a tunnel, it compresses the air ahead of it, as the air it displaces is […]

PUR Foaming Simulation with HELYX

Polyurethane or short PUR or even shorter PU is impossible to avoid in our modern life. Since its discovery in the late 1930’s in Leverkusen it has been used for countless purposes. In its foamed-up form it is insulating our houses and refrigerators, it lets us sleep soft and comfortable at night and is used […]

Simulating Complex Boundary Motion with Generalized Internal Boundaries (GIB)

Simulating complex boundary motion can be crucial when evaluating product performance, and in some cases extremely challenging to perform. Rigid body simulations with large transformations render mesh morphing approaches virtually useless due to the need for continuous smoothing and re-meshing to maintain acceptable cell quality and prevent divergence. Ultimately, engineers are forced to alter their […]

Advanced Simulation of Motorsport Fuel Cell Dynamics

In fluid dynamics, sloshing refers to the movement of fluid inside a solid object, which can also be under motion. Some examples of this application are the fuel cell (tank) of racing cars (like in Formula 1 cars) [1] and the propellant slosh in spacecraft tanks and rockets [2]. In these applications, the fluid sloshing […]

Simulating Transient Flow in a Closing Butterfly Valve

How do flow patterns and forces in a butterfly valve change during transient operation? This might be a question that you, as an engineer, need to answer during your design and operation of a valve.  There are many questions that need to be answered to obtain a complete picture of the valve’s performance characteristics, but […]

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