Embedded sphere 2D remeshing

Author: Vicente Mataix Ferrándiz

Kratos version: 7.1

Source files: Embedded sphere 2D

Case Specification

In this test case,

The following applications of Kratos are used:

• FluidDynamicsApplication
• MeshingApplication with the MMG module

Adaptative anisotropic remeshing of 2D fluid channel with sphere using as level set the distance function. It consists in a channel 5x1, a sphere of 0.3 m diameter.

The remeshing is before start the simulation, where we start with a very refined mesh of 40000 nodes and it is simplified to a mesh of just 2500 nodes, centered around the sphere of interest.

The mesh corresponding before remeshing corresponds with:

The mesh corresponding after remesh:

References

Frédéric Alauzet. Metric-Based Anisotropic Mesh Adaptation. Course material, CEA-EDF-INRIA Schools. Numerical Analysis Summer School. https://www.rocq.inria.fr/gamma/Frederic.Alauzet/cours/cirm.pdf

Pascal Tremblay 2-D, 3-D and 4-D Anisotropic Mesh Adaptation for the Time-Continuous Space-Time Finite Element Method with Applications to the Incompressible Navier-Stokes Equations. PhD thesis Ottawa-Carleton Institute for Mechanical and Aerospace Engineering, Department of Mechanical Engineering, University of Ottawa. 2007. http://aix1.uottawa.ca/~ybourg/thesis/PhDThesis_Pascal_Tremblay_Final.pdf