|May 1, 2014, 03:24||
Crash when using DPMfoam for LPT of objects contacting a vibrating wall
Join Date: Feb 2014
Location: Horsholm, Denmark
Posts: 53Rep Power: 4
Hey fellow foamers!!
I have been using the DPMFoam solver quite a lot these days. My application deals with objects contacting a vibrating boundary layer. I would ideally want the objects to propagate in the net direction of vibration. For now I use the oscillatingFixedValue b.c (which specifes a moving wall velocity) and the simulation does look very promising.
However, when I increase the particle density (number of particles), the same cases which run without issues, begin to crash. I use OF 2.3.0 debug build, and I do my debugging with gdb.. This is the crash report I obtain after about 0.2 secs of my simulations
Courant Number mean: 3.1823238 max: 7818.7169 Time = 0.2065 Evolving kinematicCloud Solving 3-D cloud kinematicCloud 101 move-collide subCycles Program received signal SIGFPE, Arithmetic exception. 0x00007ffff5914802 in Foam::WallCollisionRecord<Foam::Vector<double> >::match ( this=0x4ca4d58, pRel=..., radius=0.00052589805000000003) at lnInclude/WallCollisionRecordI.H:67 67 bool matched = (pRel & pRel_)/(magpRel_*magpRel) > cosAcceptanceAngle; (gdb) bt #0 0x00007ffff5914802 in Foam::WallCollisionRecord<Foam::Vector<double> >::match (this=0x4ca4d58, pRel=..., radius=0.00052589805000000003) at lnInclude/WallCollisionRecordI.H:67 #1 0x00007ffff5910e4a in Foam::CollisionRecordList<Foam::Vector<double>, Foam::Vector<double> >::matchWallRecord (this=0x16f3e80, pRel=..., radius=0.00052589805000000003) at lnInclude/CollisionRecordList.C:339 #2 0x00007ffff590a00e in Foam::WallSpringSliderDashpot<Foam::CollidingCloud<Foam::KinematicCloud<Foam::Cloud<Foam::CollidingParcel<Foam::KinematicParcel<Foam::particle> > > > > >::evaluateWall (this=0x3d7da40, p=..., site=..., data=..., pREff=0.00052589805000000003, kN=2446.1298302965579, cohesion=false) at lnInclude/WallSpringSliderDashpot.C:119........(and some more lines.. but these are the primary errors..
Any insights will greatly be appreciated .
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