zhyang-dev/openfoam
1
0
Fork 0
mirror of https://develop.openfoam.com/Development/openfoam.git synced 2025-11-28 03:28:01 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

ENH: streamLineParticle.C : normalise velocity to track with

Browse Source
This commit is contained in:
mattijs
2011-01-12 17:49:06 +00:00
parent 71450cf0c3
commit eece30331b
1 changed files with 14 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
src/postProcessing/functionObjects/field/streamLine/streamLineParticle.C
View File

@ -2,7 +2,7 @@
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 1991-2010 OpenCFD Ltd.
\\ / A nd | Copyright (C) 1991-2011 OpenCFD Ltd.
\\/ M anipulation |
-------------------------------------------------------------------------------
License
@ -182,7 +182,7 @@ bool Foam::streamLineParticle::move
td.keepParticle = true;
scalar tEnd = (1.0 - stepFraction())*trackTime;
scalar dtMax = tEnd;
scalar maxDt = cloud_.pMesh().bounds().mag();
while
(
@ -192,7 +192,7 @@ bool Foam::streamLineParticle::move
)
{
// set the lagrangian time-step
scalar dt = min(dtMax, tEnd);
scalar dt = maxDt;
// Cross cell in steps:
// - at subiter 0 calculate dt to cross cell in nSubCycle steps
@ -210,6 +210,16 @@ bool Foam::streamLineParticle::move
U = -U;
}
scalar magU = mag(U);
if (magU < SMALL)
{
// Stagnant particle. Might as well stop
lifeTime_ = 0;
break;
}
U /= magU;
if (subIter == 0 && td.nSubCycle_ > 1)
{
@ -219,7 +229,7 @@ bool Foam::streamLineParticle::move
else if (subIter == td.nSubCycle_ - 1)
{
// Do full step on last subcycle
dt = min(dtMax, tEnd);
dt = maxDt;
}