Learning Forum

[cbur]

Hello, One of our DIscovery customers would like information on the models used in discovery for compressibility and turbulence. Regarding turbulence I think I found: default model: turbulent k-omega SST (not modifiable in explore mode but modifiable in refine mode) On the other hand I did not find any information about compressibility except that Discovery supports a slightly compressible fluid flow up to ~ Mach 0.3. Not being an expert in this field, can you tell me about the models used for compressibility in Discovery? (in Explore and Refine mode) Thanks

[Devendra Badgujar]

Hello charlie

Currently Additional Fluid flow options are available in Refine mode only where you can specify modelling methods. For more information you can go through the help documentation:

Turbulence Model Options (ansys.com)

For Compressibility I don't think there model used in Discovery, you can go through the help documentation on this as well:

 Compressible Flows (ansys.com)

I will check if I find more information on models used for compressibility in Discovery.

Regards.

[Devendra Badgujar]

Hello charlie

In Discovery we have compressible gas model (Ideal gas Law) only for gases. At moderate pressures fluids are not compressible so that does not need a model. 

For applications involving high compressibility I would suggest you try using Ansys Fluent. 

Regards.

[cbur]

Devendra Badgujar 

Thanks for the information!

regards