FSI module and compressibility

[Andrea d'uva]

Hello all,

I would like to study a system in which fluids and solids are interacting, so I took a look into the FSI module.

What I'm not sure about is whether or not it can be used also to study the dynamics of gases. 

In such case, how could I account for the compressibility of the flow? Would it be enough to select a suitable couple for the speed of sound and the pressure-density stiffness?

Thank you for your work and your attention,

Andrea

[Radu Serban]

Andrea,

The current SPH solver in Chrono::FSI is only for incompressible fluids. There’s no plan to add support for compressible fluids. For that, your best bet is to co-simulate with some other specialized solver (this is routinely done by people in the wind energy industry, several of whom use Chrono for modeling wind turbines).

--Radu

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[Andrea d'uva]

Hello Radu,

Thank you for your answer. May you please point me to some basic sources to better understand which other solver to use and how to co-simulate with them?

I'm not really familiar with co-simulation so such a help would be much appreciated.

Thank you again,

Andrea

[Radu Serban]

Andrea,

 

For co-simulation between an aerodynamics solver and Chrono multibody/FEA dynamics, you can start with Dave Marten’s PhD thesis (QBlade-Chrono): https://www.researchgate.net/publication/344901299_QBlade_A_Modern_Tool_for_the_Aeroelastic_Simulation_of_Wind_Turbines/references

and the citations therein.

 

For co-simulation of vehicle dynamics with deformable terrain in Chrono, see for example https://www.researchgate.net/publication/326904920_A_co-simulation_framework_for_high-performance_high-fidelity_simulation_of_ground_vehicle-terrain_interaction

(A more recent implementation of the framework described in this paper is now available as part of the Chrono distribution).

 

--Radu

 

 

From: projec...@googlegroups.com <projec...@googlegroups.com> On Behalf Of Andrea d'uva

Sent: Thursday, February 6, 2025 7:09 PM
To: ProjectChrono <projec...@googlegroups.com>

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