Category: CFD

MEASURING AIR SPEED INSIDE OF SUGAR BEET CLAMPS – THE SET-UP.

To verify my CFD model of a sugar beet clamp, measurements of air speed inside of the clamp are desired. It’s something that I have not been able to do with a simple, post-clamp-construction method. In 2021, it is time to test a more embedded, set-up-at-harvest method. To this end, I’ve turned to do-it-yourself electronics.…
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OpenFOAM – FOURTH ATTEMPT. AIR FLOW THROUGH A SUGAR BEET CLAMP w BETTER GUESSES FOR DARCY & FORCHHEIMER

In 2003, Lope G. Tabil and three co-authors decided that they would make my 2021 life much much easier by publishing the paper Airflow Resistance of Sugarbeet. This paper reports some very useful values for the fluid dynamic properties of piles of sugar beets. I’m not sure where they saw their work going, but my…
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OpenFOAM – THIRD ATTEMPT. AIR FLOW THROUGH A SUGAR BEET CLAMP w COVER

Just a quick reminder 1st attempt: flow over a structure the shape of a clamp 2nd attempt: flow through a porous clamp This attempt: flow through a porous clamp with a less porous cover added The cover is 5cm normal to the surface. At a ca. 34 degree angle of repose, this makes the cover…
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OpenFOAM – SECOND ATTEMPT. AIR FLOW THROUGH A SUGAR BEET CLAMP

After getting familiar with OpenFOAM by building a model of airflow around a clamp, it was time to start looking in the clamp. To be honest, I’ve been waiting 2.5 years for this moment, so I was pretty keen to get a model that worked, regardless of whether it has the right parameters or not.…
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OpenFOAM – FIRST ATTEMPT. AIR FLOW AROUND A SUGAR BEET CLAMP

The love-hate relationship builds. The things I’m loving about OpenFOAM so far include: the price, the way it makes you understand what everything (every step, every parameter, every decision) is and means – the learning is much deeper, the way it make you understand that you’re asking the computer to do a lot of computations!…
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OpenFOAM – GETTING STARTED ON WINDOWS: THE EXPERIENCE OF A COMPUTER ILLITERATE.

It seems that anyone who is computer literate uses OpenFOAM on a Linux system. I’m not that advanced. I’m just proud (read: living in ignorance about the challenge ahead) of myself for choosing OpenFOAM as the program I’ll use in my analysis. This is my experience/ tips for getting started with the program on Windows.…
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CFD + Clamp ventilation

As part of the CFD course I’ve just been through, we had a group assignment. My team was kind enough to adopt the beet ventilation system we at NBR are developming to be the focus of our work. Here is the report (it’s pretty technical and unfortunately not highly conclusive): I hope we’ll get to…
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CFD + Drying sugar beets

Drying out sugar beets isn’t usually a practice undertaken in their production – at least, not intentionally – and we’re not looking to change this – intentionally. The topic has come up after it became clear in one of my other projects that ventilation isn’t just good for cooling beets, it has the ability to…
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