Hello Everyone, 

I recently downloaded OpenFoam for windows from the CFD support download section and the installation went effortlessly. But when I tried to run the cavity simulation following the CFDSUPPORT training pdf, I faced the  bash: blockMesh.exe: command not founderror. The frustrating part is I managed to get it running yesterday and finished the cavity test case, but today I cannot recreate what I did. In the installation folder, there are bash files in the D:\OpenFoam\20.09\cygwin64\etc and D:\OpenFoam\20.09\cygwin64\opt\OpenFOAM\OpenFOAM-dev\etc  I think the error is related to sourcing the bash file. But I am not sure as the training documents mention for windows the sourcing is done automatically.

Please help me out here as I am an absolute beginner in using OpenFoam or Linux environment. If anyone can provide the steps common to all simulation set-up and starting the OpenFOAM, I will be more grateful.

Dear Sir or Madam,
I have the following request. I would like to make a simulation of the flow of a high speed train wich reaches a closed end for my bachelor thesis. I want to do it in Openfoam. The reason why im asking this question in this forum is because the video is from the CFD-Support Youtube channel. In a Youtube video from you with the following title Train in Tunnel Passing Sudden Cross-section Change - CFD OpenFOAM® simulation with the follwing URL https://www.youtube.com/watch?v=Gyr8Y7I16KA a similar problem was shown. Is there a possibility to learn more about it? Some more Information about the dicts of the Simulation would be highly appreciated to build my simulation.
Best regards
Benedikt Bihlmayer

Hello all. There is a rectangular domain 20x40x12 m with a weak spring of the benzene vapour. The aim is to model the dispersion of benzene at the absolutely calm atmosphere (but with non-zero turbulence). I have tried a huge number of BC but failed with this task, because of the weak air currents that appear near the boundaries and at the corners. Their speed is about some centimeters per second but they are killing the process. Instead of descending to the ground (benzene has the density of 3,14), instead of penetrating through the boundary, instead of leaving the domain the benzene vapour goes up and curl and wirl ans so on. Please share your experience and help with a hint as of how to construct absolutely calm atmosphere. If it would be windy atmosphere or powerful spring of the vapour there would be no problems. Thanks.

Hello everybody,

I try to model free convection inside vertical cylindrical container with elliptical bottom end. I cannot find how to calculate heat and mass fluxes (or flow rates) through horizontal plain, which divides elliptical and cylindrical parts. It is not a physical boundary, just a geometrical figure. For meshing I am using GMSH 4.8.4. Could someone help me please.

Hello everybody 

At the moment I am doing a heat radiation simulation with the viweFactor model in OpenFOAM 8. It is about modeling the solar radiation on a mirror and reflecting it to a plate, I am not using the solid domains but I am modeling only the air domain. My problem is that I don't know which are the files or directories that I need to model the radiation with the viewFaxctor model?

Could you help me with an example, so I can develop my case study?

Thanks 

CFDSUPPORT decided to publicly and freely share their OpenFOAM training materials. 

The OpenFOAM training materials provided by CFDSUPPORT are an invaluable resource for anyone interested in learning OpenFOAM. With nearly 500 pages of comprehensive training material, the guide offers a step-by-step learning process that is tailored to suit the needs of both beginners and advanced users.

The guide covers a wide range of topics, including the basic principles of fluid dynamics, meshing, case setup, solver selection, post-processing, and more. The material is presented in a clear and concise manner, making it easy to understand even for those with little or no prior knowledge of CFD or OpenFOAM.

The training materials are accompanied by numerous examples and exercises that help reinforce the concepts covered in the guide. This hands-on approach is particularly useful in helping users develop the skills necessary to work with OpenFOAM effectively.

Moreover, the guide is available for free, making it accessible to anyone who is interested in learning OpenFOAM, regardless of their financial resources. This is a testament to the commitment of CFDSUPPORT to promoting education and innovation in the field of CFD.

Overall, the OpenFOAM training materials provided by CFDSUPPORT are a great resource for anyone looking to learn OpenFOAM, and I would highly recommend them to anyone who is interested in pursuing a career in CFD.

The download link is below in the comment section.       Please register to access it.

This category aims to enable discussion and support and enhance the users' knowledge and skills in using open-source CFD. Primarily OpenFOAM but not exclusively.