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waves: Split mean flow from wave perturbation modelling

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In order to increase the flexibility of the wave library, the mean flow
handling has been removed from the waveSuperposition class. This makes
waveSuperposition work purely in terms of perturbations to a mean
background flow.

The input has also been split, with waves now defined as region-wide
settings in constant/waveProperties. The mean flow parameters are sill
defined by the boundary conditions.

The new format of the velocity boundary is much simpler. Only a mean
flow velocity is required.

    In 0/U:

        boundaryField
        {
            inlet
            {
                type            waveVelocity;
                UMean           (2 0 0);
            }
            // etc ...
        }

Other wave boundary conditions have not changed.

The constant/waveProperties file contains the wave model selections and
the settings to define the associated coordinate system and scaling
functions:

    In constant/waveProperties:

        origin          (0 0 0);
        direction       (1 0 0);
        waves
        (
            Airy
            {
                length      300;
                amplitude   2.5;
                phase       0;
                angle       0;
            }
        );
        scale           table ((1200 1) (1800 0));
        crossScale      constant 1;

setWaves has been changed to use a system/setWavesDict file rather than
relying on command-line arguments. It also now requires a mean velocity
to be specified in order to prevent ambiguities associated with multiple
inlet patches. An example is shown below:

    In system/setWavesDict:

        alpha   alpha.water;
        U       U;
        liquid  true;
        UMean   (1 0 0);
This commit is contained in:
Will Bainbridge
2018-12-06 12:05:07 +00:00
parent bd2f275e09
commit 967edc9425
25 changed files with 490 additions and 473 deletions
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15
tutorials/multiphase/interFoam/RAS/DTCHullWave/0/U.orig
View File

@ -29,20 +29,7 @@ boundaryField
inlet
{
type waveVelocity;
origin (0 0 0.244);
direction (-1 0 0);
speed $UMean;
waves
(
Stokes2
{
length 3;
amplitude 0.04;
phase 0;
angle 0;
}
);
scale table ((4 1) (12 0));
UMean (#neg $UMean 0 0);
}
outlet

36
tutorials/multiphase/interFoam/RAS/DTCHullWave/constant/waveProperties Normal file
View File

@ -0,0 +1,36 @@
/*--------------------------------*- C++ -*----------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Version: dev
\\/ M anipulation |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "constant";
object waveProperties;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
origin (0 0 0.244);
direction (-1 0 0);
waves
(
Stokes2
{
length 3;
amplitude 0.04;
phase 0;
angle 0;
}
);
scale table ((4 1) (12 0));
// ************************************************************************* //

27
tutorials/multiphase/interFoam/RAS/DTCHullWave/system/setWavesDict Normal file
View File

@ -0,0 +1,27 @@
/*--------------------------------*- C++ -*----------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Version: dev
\\/ M anipulation |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object setWavesDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
U.orig
{
#include "$FOAM_CASE/0/U.orig";
}
alpha alpha.water;
UMean $U.orig.boundaryField.inlet.UMean;
// ************************************************************************* //

18
tutorials/multiphase/interFoam/laminar/wave/0/U.orig
View File

@ -17,7 +17,7 @@ FoamFile
dimensions [0 1 -1 0 0 0 0];
internalField uniform (0 0 0);
internalField uniform (2 0 0);
boundaryField
{
@ -26,21 +26,7 @@ boundaryField
left
{
type waveVelocity;
origin (0 0 0);
direction (1 0 0);
speed 2;
waves
(
Airy
{
length 300;
amplitude 2.5;
phase 0;
angle 0;
}
);
scale table ((1200 1) (1800 0));
crossScale constant 1;
UMean (2 0 0);
}
right
{

38
tutorials/multiphase/interFoam/laminar/wave/constant/waveProperties Normal file
View File

@ -0,0 +1,38 @@
/*--------------------------------*- C++ -*----------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Version: dev
\\/ M anipulation |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "constant";
object waveProperties;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
origin (0 0 0);
direction (1 0 0);
waves
(
Airy
{
length 300;
amplitude 2.5;
phase 0;
angle 0;
}
);
scale table ((1200 1) (1800 0));
crossScale constant 1;
// ************************************************************************* //

22
tutorials/multiphase/interFoam/laminar/wave/system/setWavesDict Normal file
View File

@ -0,0 +1,22 @@
/*--------------------------------*- C++ -*----------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Version: dev
\\/ M anipulation |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object setWavesDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
alpha alpha.water;
UMean (2 0 0);
// ************************************************************************* //