Ansys CFX vs. Simcenter STAR-CCM+

The simulations obtained are very advanced, showing great results in the movement of fluids in the different states of which it is required to obtain an understanding of their movement dynamics. I obtained impressive and illustrative results of the thermodynamic properties that occur in said flow. Ansys CFX is an easy solution for doing multiple different types of analyses.

Incentivized

The applications that I have been using it with in terms of flow and energy and temperature distributions and coupled solvers, segregated solvers, these kind of areas if you need that, those kind of solvers, it's very good. It's very robust. Maybe on the combustion side, it could improve, especially if you have these kind of tabulated solvers that you want to use, not the detailed chemistry, then it becomes very difficult to get some results from it. And do you trust the results or not? That's always the question on that kind of application, something that I could think of really fast.

Incentivized

• The GUI of Ansys CFX is pleasing to the eye and at the same time user friendly, making it a lot easier to identify the required fields.
• The numerical scheme is based on Finite Volume Methods. It supports multi-phase flows with no mass transfer.
• In the Ansys CFX, adaptive networking can be used for GGI interfaces and single domains without restricted physics.

Incentivized

• If you get your knobs well in the case setup, It is reasonably accurate to compare with any test data.
• It is good for repetitive workflows where you can greatly benefit from automation in the code.
• Single Integrated Platform can save your ass to move back and forth between multiple codes.

Incentivized

• One thing which I think they can do is provide flexibility to the user to modify the stuff inside the black box
• Sometimes the errors can be confusing. The geometry of design and meshing is sometimes troublemaking.

Incentivized

• Implementing physics like Cox-Voinov model
• Mesh related stability issues
• Chemical & plasma physics
• Integration with other products from Siemens (similar level as we have with Abacus)
• Speed up the lagrangian solver
• Improved guidence on uFluidics & evaporation models
• Interoperability (HEEDS, AMEsim, System Modelling Workbench but also with non siemens products and open source codes required for LBM, DSMC, PIC, DFT...

Great single window GUI

Incentivized

Our designated support engineers do a proper job. On the outdated Help file and training material there is a lot to gain

It is super easy when it comes to implementing it.

Incentivized

• The interface of Ansys CFX is much neater than Ansys Fluent. I found it much easier to define materials and boundaries in Ansys CFX. Also, this will allow me to get much more accurate results compared to a simples Thermal transient analysis

Incentivized

• Time saved in creating a inhouse code, tens and tens of hours.
• Time saved in experimental setup, tens of hours.
• Does add some time in testing to confirm star is doing what you think it's doing, but an overall net gain in productivity.