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swirlFlowRateInletVelocity: Added support for specifying the origin and axis of rotation

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This commit is contained in:
Henry Weller
2017-07-13 16:08:30 +01:00
committed by Andrew Heather
parent 065bfa264e
commit 77b7beb6af
2 changed files with 57 additions and 25 deletions
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72
src/finiteVolume/fields/fvPatchFields/derived/swirlFlowRateInletVelocity/swirlFlowRateInletVelocityFvPatchVectorField.C
View File

@ -2,7 +2,7 @@
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2016 OpenFOAM Foundation
\\ / A nd | Copyright (C) 2011-2017 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
@ -42,11 +42,45 @@ swirlFlowRateInletVelocityFvPatchVectorField
fixedValueFvPatchField<vector>(p, iF),
phiName_("phi"),
rhoName_("rho"),
origin_(),
axis_(Zero),
flowRate_(),
rpm_()
{}
Foam::swirlFlowRateInletVelocityFvPatchVectorField::
swirlFlowRateInletVelocityFvPatchVectorField
(
const fvPatch& p,
const DimensionedField<vector, volMesh>& iF,
const dictionary& dict
)
:
fixedValueFvPatchField<vector>(p, iF, dict),
phiName_(dict.lookupOrDefault<word>("phi", "phi")),
rhoName_(dict.lookupOrDefault<word>("rho", "rho")),
origin_
(
dict.lookupOrDefault
(
"origin",
gSum(patch().Cf()*patch().magSf())/gSum(patch().magSf())
)
),
axis_
(
dict.lookupOrDefault
(
"axis",
-gSum(patch().Sf())/gSum(patch().magSf())
)
),
flowRate_(Function1<scalar>::New("flowRate", dict)),
rpm_(Function1<scalar>::New("rpm", dict))
{}
Foam::swirlFlowRateInletVelocityFvPatchVectorField::
swirlFlowRateInletVelocityFvPatchVectorField
(
@ -59,27 +93,13 @@ swirlFlowRateInletVelocityFvPatchVectorField
fixedValueFvPatchField<vector>(ptf, p, iF, mapper),
phiName_(ptf.phiName_),
rhoName_(ptf.rhoName_),
origin_(ptf.origin_),
axis_(ptf.axis_),
flowRate_(ptf.flowRate_, false),
rpm_(ptf.rpm_, false)
{}
Foam::swirlFlowRateInletVelocityFvPatchVectorField::
swirlFlowRateInletVelocityFvPatchVectorField
(
const fvPatch& p,
const DimensionedField<vector, volMesh>& iF,
const dictionary& dict
)
:
fixedValueFvPatchField<vector>(p, iF, dict),
phiName_(dict.lookupOrDefault<word>("phi", "phi")),
rhoName_(dict.lookupOrDefault<word>("rho", "rho")),
flowRate_(Function1<scalar>::New("flowRate", dict)),
rpm_(Function1<scalar>::New("rpm", dict))
{}
Foam::swirlFlowRateInletVelocityFvPatchVectorField::
swirlFlowRateInletVelocityFvPatchVectorField
(
@ -89,6 +109,8 @@ swirlFlowRateInletVelocityFvPatchVectorField
fixedValueFvPatchField<vector>(ptf),
phiName_(ptf.phiName_),
rhoName_(ptf.rhoName_),
origin_(ptf.origin_),
axis_(ptf.axis_),
flowRate_(ptf.flowRate_, false),
rpm_(ptf.rpm_, false)
{}
@ -104,6 +126,8 @@ swirlFlowRateInletVelocityFvPatchVectorField
fixedValueFvPatchField<vector>(ptf, iF),
phiName_(ptf.phiName_),
rhoName_(ptf.rhoName_),
origin_(ptf.origin_),
axis_(ptf.axis_),
flowRate_(ptf.flowRate_, false),
rpm_(ptf.rpm_, false)
{}
@ -122,18 +146,16 @@ void Foam::swirlFlowRateInletVelocityFvPatchVectorField::updateCoeffs()
const scalar flowRate = flowRate_->value(t);
const scalar rpm = rpm_->value(t);
const scalar totArea = gSum(patch().magSf());
const scalar totArea = gSum(patch().magSf());
const scalar avgU = -flowRate/totArea;
const vector avgCenter = gSum(patch().Cf()*patch().magSf())/totArea;
const vector avgNormal = gSum(patch().Sf())/totArea;
const vector axisHat = axis_/mag(axis_);
// Update angular velocity - convert [rpm] to [rad/s]
tmp<vectorField> tangentialVelocity
(
(rpm*constant::mathematical::pi/30.0)
* (patch().Cf() - avgCenter) ^ avgNormal
);
(
axisHat ^ (rpm*constant::mathematical::pi/30.0)*(patch().Cf() - origin_)
);
tmp<vectorField> n = patch().nf();
@ -175,6 +197,8 @@ void Foam::swirlFlowRateInletVelocityFvPatchVectorField::write
fvPatchField<vector>::write(os);
writeEntryIfDifferent<word>(os, "phi", "phi", phiName_);
writeEntryIfDifferent<word>(os, "rho", "rho", rhoName_);
os.writeKeyword("origin") << origin_ << token::END_STATEMENT << nl;
os.writeKeyword("axis") << axis_ << token::END_STATEMENT << nl;
flowRate_->writeData(os);
rpm_->writeData(os);
writeEntry("value", os);

10
src/finiteVolume/fields/fvPatchFields/derived/swirlFlowRateInletVelocity/swirlFlowRateInletVelocityFvPatchVectorField.H
View File

@ -2,7 +2,7 @@
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2016 OpenFOAM Foundation
\\ / A nd | Copyright (C) 2011-2017 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
@ -42,6 +42,8 @@ Usage
Property | Description | Required | Default value
phi | flux field name | no | phi
rho | density field name | no | rho
origin | origin of rotation | no | patch centre
axis | axis of rotation | no | -(patch normal)
flowRate | flow rate profile | yes |
rpm | rotational speed profile | yes |
\endtable
@ -97,6 +99,12 @@ class swirlFlowRateInletVelocityFvPatchVectorField
//- Name of the density field used to normalize the mass flux
const word rhoName_;
//- Origin of the rotation
const vector origin_;
//- Axis of the rotation
const vector axis_;
//- Inlet integral flow rate
autoPtr<Function1<scalar>> flowRate_;