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Mechanical Blog Posts

Benchmark Shows Valid Results for a Piezoelectric Transducer Design

September 7, 2016

Many modern devices leverage piezoelectricity. When analyzing the design of such devices, you want to be confident in the reliability of the obtained results. By utilizing the COMSOL Multiphysics® simulation software, you can achieve accurate results quickly. To prove it to you, we have created a benchmark model of a piezoelectric transducer.

Using Simulation to Ensure the Cooling Efficiency of Refrigerated Trucks

September 6, 2016

Refrigerated trucks must maintain a cool temperature in order to avoid damaging the products that they carry. Optimizing the insulation materials and cooling systems of these vehicles is therefore an important step in their design. To ensure that such components work effectively under open- and closed-door cycles, Air Liquide teamed up with SIMTEC, a COMSOL Certified Consultant, to perform heat transfer and CFD simulations with the COMSOL Multiphysics® software.

How to Reuse a Deformed Shape as a Geometry Input

September 1, 2016

Suppose you take a piece of metal — a thin sheet, for example — and apply some mechanical loads. The metal will deform and take on a new shape that differs from the original undeformed configuration. Say you now want to use this deformed object as part of a new geometry construction. You can then solve another physics problem on the new composite domain. Today, we’ll demonstrate how to use a deformed object as an input to a geometry sequence.

Studying Bioreactor Landfills to Solve a Growing Trash Problem

August 26, 2016

Around the world, trash is added to landfills at an increasingly rapid rate. Since these landfills take up large areas of land and can cause environmental issues, researchers are looking for safer, space-saving solutions. One option is to convert traditional anaerobic landfills into aerobic bioreactor landfills. This conversion process needs to be studied further, which could take years experimentally. For faster results, researchers at the University of Western Ontario used the COMSOL Multiphysics® software to efficiently analyze this process.

Compressibility Options and Buoyancy Forces for Flow Simulations

August 22, 2016

The numerical analysis of fluid flow and temperature fields can offer valuable insight in many engineering applications. Efficiency, of course, is important when performing such simulations. Here, we’ll discuss the various formulations for fluid flow equations in the COMSOL Multiphysics® simulation software and when it’s best to use each option, paying particular attention to how this selection influences heat transfer analyses. We will also cover how to set up both natural and forced convection simulations using these formulations.

How to Build Gear Geometries in the Multibody Dynamics Module

August 17, 2016

Realistic gear geometries are useful for multibody dynamics simulations when coupled with other physical phenomena. Rather than manually building these geometries, we can use built-in parts available in the Part Library. With these highly parameterized gear parts, we can build a wide range of parallel and planetary gear trains and learn how to use different aspects of the built-in parts to create a realistic gear model in the Multibody Dynamics Module.

Optimizing the Hydration Operation in the Thermal Processing of Dates

August 16, 2016

Like many crops, the quality of dates is heavily impacted by agronomic practices. In Tunisia, for example, such elements have caused these soft edible fruits to become drier in nature. One approach to improving the quality of these dates is thermal processing, where the key unit of operation is hydration. Combining the power of experimental studies with simulation analyses, a team of researchers sought to optimize the hydration process in order to foster greater efficiency and reliability.

Design an App to Efficiently Model the Flash Method Procedure

August 15, 2016

The flash method, first described by W.J. Parker et. al in 1961, is a widely used technique for measuring the thermal conductivity of materials. Our Flash Method demo app, highlighted here, performs a numerical simulation of this experiment, offering a simplified approach to modifying parameters that can impact its overall accuracy. Today, we’ll take a closer look at this easy-to-use app, as well as the theory behind it.


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