Openfoam is good.

Thanks rakesh ji,

I have some working issues with openfoam can u please help me?

you can try with OpenFoam...... I think it is good for CFD purpose.

just check all the libraries you need are available for Openfoam

you can try abaqus ......

SU2 is a good open source CFD solver with various capabilities developed at Stanford. 

OpenFOAM is great thanks to the possibility to customize to code as you want!

Franco

Open foam is so far the best one

OpenFoam is very good and robust

OpenFOAM is quite complicated but once you can manage it, it is the top. Also much better than the commercial software because it is customizable and scriptable.

Franco

Viswa, we recently published an article comparing the most common commercial and open source CFD packages.  I hope you find it useful.

http://www.resolvedanalytics.com/theflux/comparing-popular-cfd-software-packages

Stewart

OpenFOAM is one of the best open-source CFD tools. Please see below.

• You can download and install it on several machines for free
• You can access and modify the source code and any part of it (turbulence models, solvers, boundary conditions etc...)
• It uses the namespace foam with several extensions of C++ for CFD
• It is very efficient for parallel computing. (I personally decomposed and ran a case on 200 processors with success)
• It comes with several pre- and post-processing tools.

You can find more information and download it here: https://openfoam.org/

Please find below a very helpful forum from the OpenFOAM CFD community:

https://www.cfd-online.com/Forums/openfoam/

https://www.cfd-online.com/Forums/openfoam/

https://openfoam.org/

openFoam and code saturne are good

OpenFOAM.

Also, I prefer OpenFoam as well

OpenFOAM

Would like to ask the same question and in particular which would you recommend for someone that is familiar with Fluent.

Thanks in advance.

Whether openFOAM can be installed in windows?

There is also an integration of OpenFoam with FreeCAD which makes it a little bit easier to use.

https://forum.freecadweb.org/viewtopic.php?t=24147

The aswer to that is as usual: what is the best depends on your specific application requirements. No precise ansswer is possible without knowing your case.

To give some pointers:

The most common open-source CFD (finite volume based) tools are (features partly quoted from their websites):

- OpenFOAM: (for "Open source Field Operation And Manipulation") is a C++ toolbox for the development of customized numerical solvers, and pre-/post-processing utilities for the solution of continuum mechanics problems, including computational fluid dynamics (CFD); used in industrial settings

- code_saturne: Originally developed as an in-house tool by the French EDF (electricity provider). At least equivalent to commercial CFD software; used in industrial settings; has the approval to be used for nuclear reactor design; scales well on large HPC settings

- Gerris Flow Solver allowing to model industrial fluids (aerodynamics, internal flows, etc.) or for instance, the mechanics of droplets, thanks to an accurate formulation of multiphase flows (including surface tension).

- SU2 The primary applications are computational fluid dynamics and aerodynamic shape optimization, but has been extended to treat more general equations such as electrodynamics and chemically reacting flows

Pre- and Post-processing would be done using Salome-MECA, ParaView (post only), gmsh, . . .

Open source SPH:

- SPHysics / DualSPHysics

- GPUSPH

- PySPH

- PersianSPH

If you want to use it in an commercial engineering setting, i.e. doing calculations for customers, you will most likely be using OpenFOAM or code_saturne, however your mileage may vary.

All of the above are available on Linux and can be used on clusters/HPC systems. If they work on MS Windows? I don't know (and don't care).

The answers here show that OpenFOAM is the consensus :)

If you are looking for something more visual, there is VisualCFD, a commercial software that's complementary to openfoam and more affordable than ansys fluent.

FEATool Multiphysics ( https://www.featool.com ) and CFDTool toolboxes features full GUI integration with OpenFOAM solvers (and SU2 as well as FEniCS). The idea is that you can set up the model once in the GUI and then use any CFD or physics solver, or export it to a simulation script.

openFOAM

I would definitely recommend OpenFOAM. The interface is quite good to use. Visual CFD is another tool to use for sure. Depends on the OS you are using as well.

OpenFoam

I would also recommend MFIX from US DOE. https://mfix.netl.doe.gov/

it depends on which domain you are working in, at this time in my knowledge

OpenFOAM is your best choice.

OpenFoam is the best

No doubt at all Sir, OpenFOAM is the best and it will stay the best.