Penalisation.c File Reference

The penalisation is used to take into account the bodies in the Navier-Stokes equations. More...

#include "petscdmda.h"
#include "petscksp.h"
#include "petscpc.h"
#include "struct.h"
#include "Penalisation.h"
#include "Lins.h"
#include "Vectors.h"

Include dependency graph for Penalisation.c:

Macros
#define	__FUNCT__   "immersed_boundary"
#define	__FUNCT__   "penalisation"
#define	__FUNCT__   "remove_fresh_points"

Functions
PetscErrorCode	immersed_boundary (Simu simu, Grid grid, Proc proc, Fields vec, Arrays arr, Obs obs)
PetscErrorCode	penalisation (Simu simu, Grid grid, Proc proc, Fields vec, Arrays arr, Obs obs)
PetscErrorCode	remove_fresh_points (Simu simu, Grid grid, Proc proc, Fields vec, Arrays arr, Obs obs)

Detailed Description

The penalisation is used to take into account the bodies in the Navier-Stokes equations.

Note

It inclludes the IPC approach proposed in

[7] M. Bergmann, J. Hovnanian and A. Iollo, An Accurate Cartesian Method for Incompressible Flows with Moving Boundaries, Commun. Comput. Phys. Vol. 15, No. 5, pp. 1266-1290, 2014.

DOI: https://doi.org/10.4208/cicp.220313.111013a

And the 1st order Penalization originally introduce in [1], and for instance presented in

[4] Bergmann M. & Iollo A., Modeling and simulation of fish like swimming, J. Comput. Physics, 230 (2), (2011)

DOI: https://doi.org/10.1016/j.jcp.2010.09.017

Version

0.0

Author

Michel Bergmann

Date

2023-03-03

Function Documentation

immersed_boundary()

PetscErrorCode immersed_boundary	(	Simu	simu,
		Grid	grid,
		Proc	proc,
		Fields	vec,
		Arrays	arr,
		Obs	obs
	)

This is the IPC 2nd Order Volume Penalisation [7]

Note

M. Bergmann, J. Hovnanian and A. Iollo

An Accurate Cartesian Method for Incompressible Flows with Moving Boundaries,

Commun. Comput. Phys. Vol. 15, No. 5, pp. 1266-1290, 2014.

DOI: https://doi.org/10.4208/cicp.220313.111013a

penalisation()

PetscErrorCode penalisation	(	Simu	simu,
		Grid	grid,
		Proc	proc,
		Fields	vec,
		Arrays	arr,
		Obs	obs
	)

This is the classical 1st Order Volume Penalisation [4]

Note

Bergmann M. & Iollo A.

Modeling and simulation of fish like swimming,

J. Comput. Physics, 230 (2), (2011)

DOI: https://doi.org/10.1016/j.jcp.2010.09.017

remove_fresh_points()

PetscErrorCode remove_fresh_points	(	Simu	simu,
		Grid	grid,
		Proc	proc,
		Fields	vec,
		Arrays	arr,
		Obs	obs
	)

This remove the possible non-pysical fresh points, i.e. the points passing from solid the fluid state between iteration n and n+1.