### Compressible flow tutorials

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2

Hi I'm searching for tutorials/examples for simulation of compressible flow in fenics. I searched a lot and most of the tutorials/materials available are for incompressible flow. If you could point out any materials/examples/documentation for simulation of compressible flow (including shock) using fenics (python interface), I'll be grateful.

Thank you!

Thank you!

Community: FEniCS Project

### 1 Answer

5

If you want to dive into the deep end, you can try my side project https://bitbucket.org/nate-sime/dolfin_dg.

There is a Sod's shock tube example in addition to compressible flow around a NACA0012 airfoil.

There is a Sod's shock tube example in addition to compressible flow around a NACA0012 airfoil.

1

Any plans to add flux limiters to your project?

written
4 months ago by
Miguel

I'd be interested to see a flux capacitor in operation.

written
4 months ago by
Drew Parsons

1

This is very interesting. Is there some documentation on the methods used ? DG for fluid flows requires high order representation of curved boundaries. Did you do this in this code ? Is there any new developments in fenics that allow isoparametric elements to represent curved boundaries ? Last I checked this was not possible and was a major drawback to using fenics for compressible flows.

written
4 months ago by
Praveen C

1

Indeed this is a limitation of FEniCS as-is. The new dolfin-x project has an objective to include high order boundary representation.

There is a simple Ringleb flow problem in the project which only works in serial. This problem demonstrates the sub-optimal convergence rates when using a boundary of insufficient regularity.

There a paper in press, shown in the project readme. Preprint available here http://eprints.nottingham.ac.uk/50449/.

There is a simple Ringleb flow problem in the project which only works in serial. This problem demonstrates the sub-optimal convergence rates when using a boundary of insufficient regularity.

There a paper in press, shown in the project readme. Preprint available here http://eprints.nottingham.ac.uk/50449/.

written
4 months ago by
Nate

Wow! Thanks for pointing out!

written
4 months ago by
Dancing Neutron

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