The major highlight is, as always, the ability to meet with ones peers. Even if the cost of travel to Mons skyrocketed as a result of the issues in the airline industry, just having the chance to meet the people who share your passion is worth its weight in gold alone. Of the more innovative…
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The 78th IIRB Congress was held 21 to 23 June 2022, in Mons, Belgium, at the the Wallonia Conference Center. This is a summary of the contributions NBR made to the Congress. First and foremost, the Chair of the entire IIRB organisation in 2022 was none other than the NBR Managing Director, Desirée Börjesdotter. That…
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OpenFOAM version: 9 Solvers: pimpleFoam and clampPimpleFoam v6 Case: clamp_22 GENERALLY QUITE WELL = NOT GOOD ENOUGH. Now that the model seems to work generally quite well, it’s time to start improving it. Here are some issues and fixes implemented in this step in the process. Deal with conduction at the boundary of the clamp.…
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OpenFoam version: 9 Solvers: clampPimpleFoam (v5), pimpleFoam Case: clamp_16 IT’S ALIVE I’m not sure if this is the most elegant solution available within the OpenFoam environment, but to swap the inlet and outlet, simply, two different geometries are used. When the air is flowing left-to-right (ltr), the geometry with the inlet on the left is…
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Feature image: A logo fitting of this project OpenFoam version: 9 Solver: pimpleFoam and clampPimpleFoam v5 Case: clamp_15 JUST ENJOY 35 hours of simulation using actual field data. I’m not going to ruin this moment by comparing the model results with the experimental temperature data taken from within the clamp… For reference, it took ca.…
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Feature image: A clamp cover blowing in the wind. OpenFoam version: 9 Solver: pimpleFoam and clampPimpleFoam v5 Case: clamp_14 THE PROBLEM In the last post in this series, it was noted that there was an issue with dt being too small for this case. The proposed solution was to run the simulations in two steps:…
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Case: clamp_13 (eg of clamp_13_05) Solver: clampPimpleFoam v5 OpenFOAM version: 9 THE ISSUE What the actual issue is, is actually not 100% clear, but some strange behaviours in the model have been observed and noted in previous posts. This is a summary of it: The change in the temperature of the solid over time =…
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Photo credits: AgCast Good episode. “Cover crops … took us from the brink of bankruptcy to a profitable enterprise today.” Whether or not the quote is accurate needs checking, but the message is right. Cover crops: Adam notes that cover crops are winning everywhere in their system: in floods, they protected the soil from washing;…
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OpenFOAM version: 9 Case: clamp_12 Solver: clampPimpleFoam v4 A NEW SOLVER VERSION A lot of small fixes have be made on v3 of clampPimpleFoam. It’s time for a new version. The focus of this version will be to make Ts and Tf in TsEqn and TfEqn implicit instead of explicit. Previously, these were included as…
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