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Weak and Strong Form CFD

If you are given production-ready detailed CAD geometry (nuts, bolts, and all) for Computational Fluid Dynamics (CFD) analysis you have to ask yourself, is this really an engineering endeavor or a marketing exercise? Given the effort to produce a complete, detailed CAD model, it is unlikely that any significant changes will be looked upon favorably. Instead you will likely find that CFD is to be used in its weakest form, i.e., Colorful Fluid Dynamics (CFD) for marketing.

Weak Form CFD for Complex GeometryWeak Form CFD for Complex GeometryAirflow around Tower Bridge

CFD Helps Unconventional Concept Designs Succeed

When you find yourself tasked with the design of something unconventional, then Computational Fluid Dynamics (CFD) is here to help. For instance consider the aircraft industry. It used to be that the dominant type of aircraft required a pilot and therefore a cockpit with a good view of the world. Then Unmanned Aerial Vehicles (UAVs) went mainstream and everything changed.

Unconventional UAV CFD SimulationUnconventional UAV CFD Simulation

How to Share Caedium CFD Results With ixCube 4-10

ixCube 4-10 is a comprehensive design tool for tensile structures, also known as membranes. By sharing your membranes with Caedium Professional you can perform Computational Fluid Dynamics (CFD) analysis to determine wind loads (e.g., pressure coefficient) and then export those results from Caedium and import them back into ixCube 4-10 for further stress and shape analysis. Watch the video for instructions on the process.

How To Share Caedium CFD Results with ixCube 4-10

CFD For A Complete Dust Collector

Having performed Computational Fluid Dynamics (CFD) simulations for each component of Matthias Wandel's "Small Dust Collector," the time has come to assemble and test the entire system - virtually, of course. Recall that the main components of the dust collector are a cyclone, a filter assembly, and a blower.

Dust Collector CFD SimulationDust Collector CFD Simulation

Navier-Stokes Equations NOT Renamed

I'm sure you saw right through my April Fools' jolly jape and realized that the Navier-Stokes equations have not been renamed.

Still the Navier-Stokes EquationsStill the Navier-Stokes Equations

Navier-Stokes Equations Renamed

The International Equation Naming Organization (IENO) has renamed the Navier-Stokes equations to the Euler-Navier-Cauchy-Poisson-Saint-Venant-Stokes equations or ENComPaSS for short. You will no doubt recall that the ENComPaSS equations are the foundation on which much of modern day fluid dynamics is based, including Computational Fluid Dynamics (CFD), so this is indeed a momentous event.

Euler, Navier, Cauchy, Poisson, Saint Venant, and StokesEuler, Navier, CauchyPoisson, Saint Venant, Stokes

Remote CFD is Easy

You know how it is - you are away from the office and you are desperate to check in on a series of Computational Fluid Dynamics (CFD) simulations you are running back at your base. Then once the simulations finish you'd like to take a moment to look at each one with all the benefits of hardware accelerated graphics on your laptop, while still enjoying your latte at Starbucks. Well you can do both today without any extra outlay using Caedium and free apps from Google - let me describe how.

Caedium Professional Running Remotely in a Web BrowserCaedium Professional Running Remotely in a Web Browser

CFD Simulation of Airflow Through Filters in a Dust Collector

After using Computational Fluid Dynamics (CFD) to simulate the blower and cyclone in Matthias Wandel's "Small Dust Collector" we next turn our attention to the last remaining major component - the twin filter assembly. The filters remove fine particles that escape the cyclone, leaving the air to pass through the blower and exit to the atmosphere.

CFD Simulation of a Filter Assembly for a Dust CollectorCFD Simulation of a Filter Assembly for a Dust Collector

CFD Analysis of a Homemade Cyclone

Hot on the heels of my recent Computational Fluid Dynamics (CFD) analysis of the blower for Matthias Wandel's "Small Dust Collector" comes a new CFD study of his cyclone. Cyclones are used in many industries to separate fluids from particles. In Matthias' case he wanted to separate sawdust and wood shavings from air collected from the working area of various woodworking machines.

CFD Simulation of a Dust Collector CycloneCFD Simulation of a Dust Collector CycloneStreamlines

CFD Analysis of a Blower for a Small Dust Collector

I recently came across an interesting fluid dynamics project modestly titled "Small Dust Collector" by Matthias Wandel of Woodgears. The unusual twist - at least from my metal-orientated view of the world - was the use of wood as the primary construction material. The project includes the construction of a blower, cyclone, filter housing, and filter manifold - all prime candidates for Computational Fluid Dynamics (CFD) simulations. I sense a series of blog posts, so first let's take a look at the blower also known as a centrifugal fan or squirrel cage fan.

CFD Simulation of a BlowerCFD Simulation of a Blower

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