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What Is Multiphysics Simulation?

Need to analyze interacting physical fields? Then you need Multiphysics Simulation!

For many engineering analyses it’s sufficient to focus on a single type of physics such as structural mechanics, heat transfer, fluid dynamics, acoustics, or electromagnetics.  However, there are many problems where multiple physics fields are important and interact, which means they must be considered together to achieve accurate enough engineering predictions.

The use of engineering simulation to analyze such problems requires Multiphysics simulation, in which multiple physical fields concurrently drive the behavior of a design and are coupled according to different interaction mechanisms. Some common examples of Multiphysics include:

  • Fluid-structure interaction, such as aeroelasticity, when an elastic structure is deformed by fluid flow
  • Electromechanical interaction, such in piezoelectric materials operating at RF frequencies
  • Structural-acoustics interaction, where vibrating structures interact with acoustic waves in an adjacent fluid medium

With the ever-increasing compute power available for engineering simulation, the range of Multiphysics applications that can be successfully simulated continues to grow. Perhaps the next great advances in this area will be (1) solvers with sufficient computational scalability to achieve realistic multiphysics simulation of highly complex industrial products and devices, and (2) workflows that make powerful multiphysics simulation more accessible and robust for a broader range of engineers.

Electronics Cooling Multiphysics Simulation

Engineers who design and test electronics require high-fidelity engineering simulation to investigate heat and fluid flow in order to develop the best thermal management strategies. This whitepaper discusses how access to physics-based solvers in the cloud enables engineering teams to quickly assess performance and accelerate design iterations by leveraging the power and speed of cloud computing.

Why are simulation jobs exploding in complexity and size, and perhaps more importantly, what can you do about it?

In a recent panel discussion in the DE Hot Seat webcast series, Gabriel F. Dambaugh, owner and principle engineer of FEA Services; and Donald Tolle, Director of Simulation-Driven Systems Development Practice, CIMdata, discuss the rise of multiphysics simulation driving the use of simulation, the software developers' efforts to make their solvers run faster, and the pros and cons of the emerging cloud-hosted solutions.

When the Pressure Is On: Preventing Well Blowouts

To understand what kept emergency devices from deploying fully during an offshore well catastrophe, researchers turned to Ansys Mechanical and Ansys Fluent to model fluid–structure interactions.

Solution Providers:

How to Model and Simulate Complex Electric Motors

3D electromagnetic problems become more complex in multiphysics simulations such as noise-vibration and harshness (NVH).

Using Multiphysics Simulation to Unblock the Suez Canal

Could OnScale's Multiphysics simulation have been the key to solving the global supply disturbance amounting to $400 million per hour? Read the article in Digital Engineering.

Green Machine

Tecumseh engineers used Ansys multiphysics capabilities to design a new compressor that consumes less power and produces less noise in under half the time required to design the previous product.

Solution Providers:

Webinar: High-Density Packaging Design with OnScale Cloud Engineering Simulation

This webinar describes OnScale’s revolutionary approach that combines state-of-the-art proprietary multiphysics solvers and cutting-edge high-performance computers on the cloud. We also describe OnScale’s unique technology and business approach, which gives users the ability to run the thousands of simulations required to fully optimize the electronics package using a flip-chip, all in a fraction of the usual time and cost.

CFD & Multiphysics Simulation

CFD simulates the flow of liquids and gases by performing millions of numerical calculations. CFD analysis is typically carried out earlier in the design process even before the first prototype is made. With high-speed supercomputers, better designs can be achieved quicker, faster, and cheaper. Multiphysics is advanced CFD involving multiple physics coupled to mimic the real behavior as accurately as possible.

How Verathon Used OnScale to Cut Their Simulation Time by 80%

Verathon is expecting their newest devices to be ready within a 2 month time frame, as opposed to the industry standard 18 month cycle.

Solution Providers:

Multiphysics

Multiphysics simulation lets you explore real-world physical interactions a complex product may encounter. These interactions can impact product performance, safety and longevity. Fluid forces, thermal effects, structural integrity and electromagnetic radiation can affect performance. If you isolate these forces and examine them separately, you may not get an accurate prediction of product behavior.

COMSOL Multiphysics Shines in the Cloud

To design products in the real world, engineers need to contend with physics in the areas of electrical, acoustics, heat, fluids and more. COMSOL is an industry-leading simulation platform that captures the richness of the real world with its multi-physics capabilities.

Paper: Simulation-Driven Optimization of 5G RF MEMS Filters

This white paper discusses how RF MEMS acoustic resonator-based filters can be efficiently and effectively designed, thereby reducing cost, risk, and time to market. Mathematical modeling and numerical simulation play a key role in achieving quick and reliable design wins.

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