To simulate Foundry-in-a-Box 4.0, it is recommended to use SimFlow 4.0 by Atizar Limited. 

• Free CFD software with no need for registration.

• Built on well established open-source software, such as OpenFOAM. 

• Easy to use graphical user interface with 3D interactive viewer. 

• Can create geometric meshes using STL files from common CAD programs (SolidWorks, Autodesk Inventor).

• Readily available for Windows 10 operating systems. 

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To download SimFlow 4.0, head to the Atizar Limited website and click on "Download now, Free License". Please note that downloading the software may take some time. Finally, during installation, make sure to uncheck the option for ParaView 5.6.0. Using an older version of ParaView may cause a green screen during post-processing.