OpenFOAM has an extensive range of features to solve anything from complex fluid flows involving chemical reactions, turbulence and. It has a large user base across most areas of engineering and science, from both commercial and academic organisations. CFDTool - An Easy to Use CFD Toolbox for MATLAB = CFDTool is a MATLAB® Computational Fluid Dynamics (CFD) Toolbox for modeling and simulation of fluid flows with coupled heat transfer.OpenFOAM is the free, open source CFD software developed primarily by OpenCFD Ltd since 2004.

CFDTool - Easy to Use Fluid Dynamics (CFD) MATLAB Toolbox. You could compare the meshCase and case folders that are written in the two cases and see if there are any differences in inputs.Download CFDTool - MATLAB CFD Simulation GUI Tool for free. There shouldn't be, especially if you are using the same versions of CfdOF and OpenFOAM.

Have you heard of any other cases where 0.18 and 0.19 FreeCAD cases have not agreed ? No point in going into detail here but large (50%) dissagreement in velocities. I have not been able to obtain a direct repeat.

I repeted my FreeCAD_018 runs in FreeCAD_019 and got some very interesting results. I decided to go back to and repeat my original CFD models, even reusing my original Excell analysis workbooks, using FreeCAD 0.19. All sorted after your help to overcome my thought/memory troubles. If you go into 'PhysicsModel' and tick 'Viscous', you should find that it works. This causes the calculation to immediately fail. You are prescribing a fixed input and output pressure however the analysis is inviscid which means that there is no counterbalancing friction to balance this prescribed force and so the problem has no solution. The run then fails since this is an inviscid analysis with prescribed pressure drop - changing to viscous will fix that.

Simply double-clicking the 'InitialiseFields' object should automatically choose the first suitable boundary ('inlet' in this case) click OK and all should be well. This happens when 'Use value from boundary' is chosen in the 'InitialiseFields' object, but a valid boundary has not (yet) been selected.

Freecad cfdof