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@ -70,14 +70,17 @@ void Foam::swirlFanVelocityFvPatchField::calcFanJump()
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if (useRealRadius_)
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{
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const scalarField rMag(mag(patch().Cf() - origin_));
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forAll (rMag, i)
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const vectorField& pCf = patch().Cf();
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forAll(pCf, i)
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{
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if (rMag[i] > rInner_ && rMag[i] < rOuter_)
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const scalar rMag = mag(pCf[i] - origin_);
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if (rMag > rInner_ && rMag < rOuter_)
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{
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magTangU =
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deltaP
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/rMag[i]
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magTangU[i] =
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deltaP[i]
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/rMag
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/fanEff_
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/(rpm_*constant::mathematical::pi/30.0);
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}
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@ -95,6 +98,7 @@ void Foam::swirlFanVelocityFvPatchField::calcFanJump()
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magTangU =
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deltaP/rEff_/fanEff_/(rpm_*constant::mathematical::pi/30.0);
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}
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// Calculate the tangential velocity
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const vectorField tangentialVelocity(magTangU*tanDir);
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@ -32,36 +32,39 @@ Description
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cyclic pressure jump condition and applies a transformation to U.
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The U-jump is specified with a swirl component as follows:
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\verbatim
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Utan = deltaP/rEff/fanEff/(rpm*pi/30.0);
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where:
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where
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deltaP : pressure drop across the cyclic.
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rEff : effective radius
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fanEff : fan efficiency coefficient
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rmp : RPM of the fan
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rpm : RPM of the fan
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\endverbatim
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Alternatively an inner and outer radii can be used instead of rEff. The
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Utan is as follow for r > rInner and r < rOuter
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\verbatim
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Utan = deltaP/r/fanEff/(rpm/pi/30.0);
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where:
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where
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r : p - origin, p is the face center
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\endverbatim
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Outside rInner and rOuter, Utan = 0. The input for this mode is:
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\verbatim
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useRealRadius true;
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rInner 0.005;
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rOuter 0.01;
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\endverbatim
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The radial velocity is zero in the present model.
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Usage
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\table
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Property | Description | Required | Default value
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Property | Description | Required | Default
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patchType | underlying patch type should be \c cyclic| yes |
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phi | flux field name | no | phi
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rho | density field name | no | rho
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@ -91,7 +94,6 @@ Usage
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}
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\endverbatim
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SourceFiles
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swirlFanVelocityFvPatchField.C
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@ -117,7 +119,6 @@ class swirlFanVelocityFvPatchField
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{
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// Private data
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//- Name of the flux field
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const word phiName_;
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@ -178,7 +179,8 @@ public:
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const dictionary&
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);
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//- Construct by mapping given swirlFanVelocityFvPatchField onto a new patch
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//- Construct by mapping given swirlFanVelocityFvPatchField
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//- onto a new patch
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swirlFanVelocityFvPatchField
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(
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const swirlFanVelocityFvPatchField&,
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@ -228,7 +230,7 @@ public:
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virtual void updateCoeffs();
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//- Write
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virtual void write(Ostream&) const;
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virtual void write(Ostream& os) const;
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};
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@ -0,0 +1,11 @@
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# An angled plane that extends beyond the geometry
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o angledPlane
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v -0.03 -0.08 -0.03
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v -0.03 -0.08 0.03
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v -0.07 -0.02 0.03
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v -0.07 -0.02 -0.03
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f 1 2 4
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f 2 3 4
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# EOF
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@ -52,7 +52,7 @@ runTimeModifiable true;
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functions
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{
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#include "sampling"
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#include "samplingDebug"
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// #include "samplingDebug"
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}
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