111 lines
2.8 KiB
C
111 lines
2.8 KiB
C
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{
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vector Cb0 = Cb;
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if (interface.twoFluids())
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{
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Cb = gSum((1.0 - fluidIndicator.internalField())*
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mesh.C().internalField()*mesh.V())/
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gSum((1.0 - fluidIndicator.internalField())*mesh.V());
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}
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else
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{
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scalar Va = gSum(mesh.V().field());
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vector Ra = gSum(mesh.C().internalField()*mesh.V().field())/Va;
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scalar Vb =
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- gSum
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(
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mesh.Cf().boundaryField()[interface.aPatchID()]
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& mesh.Sf().boundaryField()[interface.aPatchID()]
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)/3;
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scalar V = Va + Vb;
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Cb = (V*Cbf - Va*Ra)/Vb;
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if (mesh.nGeometricD() != 3)
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{
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FatalErrorIn(args.executable())
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<< "One-fluid bubble centroid calc "
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<< "is not implemented for 2d mesh"
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<< abort(FatalError);
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}
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}
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Info << "\nCurrent bubble centre: " << Cb << endl;
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dimensionedVector dUF
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(
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"dUF",
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dimVelocity,
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lambdaFf*(Cb-Cbf)/runTime.deltaT0().value()
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+ lambdaF0*(Cb-Cb0)/runTime.deltaT0().value()
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);
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XF += (UF + 0.5*dUF)*runTime.deltaT0();
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Info << "Current bubble position: " << XF << endl;
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// dimensionedVector UF00 ("UF00", dimVelocity, UF0.value());
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// UF0 = UF;
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UF += dUF;
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Info << "Current bubble velocity: " << UF << endl;
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aF = dUF/runTime.deltaT0();
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// aF = (3.0*UF - 4.0*UF0 + UF00)/(2.0*runTime.deltaT0());
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Info << "Current bubble acceleration: " << aF << endl;
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if
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(
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U.boundaryField()[spacePatchID].type()
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== inletOutletFvPatchVectorField::typeName
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)
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{
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inletOutletFvPatchVectorField& spaceU =
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refCast<inletOutletFvPatchVectorField>
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(
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U.boundaryField()[spacePatchID]
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);
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spaceU.refValue() = -UF.value();
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}
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else
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{
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FatalErrorIn(args.executable())
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<< "Velocity boundary condition at space patch is not "
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<< inletOutletFvPatchVectorField::typeName
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<< abort(FatalError);
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}
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// Update movingReferenceFrame dictionary
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if (movingReferenceFrame.found("Cb"))
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{
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movingReferenceFrame.remove("Cb");
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}
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movingReferenceFrame.add("Cb", Cb);
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if (movingReferenceFrame.found("Cbf"))
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{
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movingReferenceFrame.remove("Cbf");
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}
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movingReferenceFrame.add("Cbf", Cbf);
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if (movingReferenceFrame.found("XF"))
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{
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movingReferenceFrame.remove("XF");
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}
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movingReferenceFrame.add("XF", XF);
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if (movingReferenceFrame.found("UF"))
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{
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movingReferenceFrame.remove("UF");
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}
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movingReferenceFrame.add("UF", UF);
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if (movingReferenceFrame.found("aF"))
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{
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movingReferenceFrame.remove("aF");
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}
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aF.name() = "aF";
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movingReferenceFrame.add("aF", aF);
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}
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