#include "tracer.h"
#include "two-phase-generic.h"
#include "redistance.h"

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Functions
void	levelset_to_vof (scalar d, scalar f)

void	event_init (void)
	The initial volume fraction is computed from the initial distance field, which must be initialised by the user.

void	event_properties (void)
	The distance function is reinitialised at each timestep.

Variables
scalar	d []

scalar	f []

scalar *	tracers = {d}
	Here we set the gradient functions for each tracer (as defined in the user-provided `tracers` list).

Function Documentation

◆ event_init()

void event_init ( void )

The initial volume fraction is computed from the initial distance field, which must be initialised by the user.

Event: init (i = 0)

Definition at line 43 of file two-phase-levelset.h.

References d, f, and levelset_to_vof().

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◆ event_properties()

void event_properties ( void )

The distance function is reinitialised at each timestep.

Event: properties (i++)

Definition at line 54 of file two-phase-levelset.h.

References d, f, levelset_to_vof(), redistance(), and x.

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◆ levelset_to_vof()

void levelset_to_vof	(	scalar	d,
		scalar	f
	)

Definition at line 30 of file two-phase-levelset.h.

References _i, d, f, fractions(), phi, and x.

Referenced by event_init(), and event_properties().

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Variable Documentation

◆ d

scalar d[]

Two-phase interfacial flows with levelset

This file helps setup simulations for flows of two fluids separated by an interface (i.e. immiscible fluids). It is typically used in combination with a Navier–Stokes solver.

The interface between the fluids is tracked with a levelset method. The signed distance to the interface is tracked by d. The volume fraction field f is computed from the signed distance.

Note that the coupled VOF and levelset solver should be prefered as it ensures much better mass conservation.

This solver can be combined with the integral formulation of surface tension.

The volume fraction in fluid 1 is \(f=1\) and \(f=0\) in fluid