Calculators Looking for a free Multiphysics-type simulator

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COMSOL and ANSYS are recognized for their effectiveness in simulation but are noted for their high costs. Alternatives that offer a more user-friendly interface similar to Houdini, with node-based or graphical user interfaces for accurate simulations, are sought after. OpenFOAM is mentioned as a slower option due to its cumbersome workflow, requiring multiple steps to visualize and edit models. FEATool, compatible with MATLAB and Octave, is suggested as a potential alternative, and it may also work with Freemat. Additionally, Julia is highlighted as a free option with MATLAB-like syntax, particularly through the ANN GridAp library, which provides a comprehensive finite element ecosystem.
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comsol/ansys seem to do the job, but they are expensive

I was looking for something like houdini (cg), but with actual nodes or click and define gui that provide accurate simulation (and code, but it doesn't force you to use it, unless you don't need to do something really specific)

I've tried stuff like openfoam, but the workflow it's slow, get the model, make the config, run openfoam, put the result into paraview, and for edits, back from the start, I can't like interactively see/do changes
 
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