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  • #1803
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Issue created Aug 07, 2020 by Pawan Ghildiyal@PawanReporter

inconsistent behaviour: particle injection using coneInjection

@andy @Sergio I noticed a strange behaviour in number of parcel added when using reactingParcelFoam
on different number of processor using OpenFOAM-v1912 as well with 2006 (Intelmpi-openmpi) Please note all cases run with same setting but on different number of processor

At first time step, all processor shows same number of parcels i.e 467 parcel added
but them ramp to different value(3 shows same end number but two i.e 144 and 216 shows different number)

Cores Parcel-InjectedPerTimeStep totalMassInjected
36 350 11.08329
72 350 11.08329
144 700 11.09316
216 700 11.11257
288 350 11.08329

Observation

  1. number of particles per parcel vary by big number i.e 2 Million in first time step
    when particles are injected (see below for 72 proc vs 144 proc) image

what i tried till now i) tried in 2006

ii)used fixedValue distribution

no difference in results

iii) changed precision of injection point . i changed precision of injection point and it is not making any difference (still need to check whether they lie in processor patch)

iii)added reacting1CloudProperties file (/uploads/f486d531e6259169af446ebfa1be301d/reactingCloud1Properties)

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Time tracking