[PascalCastro]

Hello everyone.
My question is link to this topic so I put it there.
I'm a new user of OpenFOAM, so I don't know all the intricacies of how it works.

Let's for instance use the motorBike example. I replaced the motorBike object by a thin plate to get a simple example.
If I run the simulation for, let say 50s (setting endTime to 50) wait for the simulation to stop and resume it, it works but I have a "spike" in the forces.dat data (see the image in the link bellow. I don't know how to insert an image hosted in a htpps web site)

https://i.postimg.cc/ZK9TnDQB/Figure-1.png

I must do something wrong somewhere.

I use the Allrun script to start at first the simulation with endTime set to 50 and startTime set to 0 in the controlDict file.

To resume the simulation, I set endTime to 100, startTime to 50 in controlDict.
I remove log.potentialFoam, log.simpleFoam, log.reconstructParMesh and log.reconstructPar
Then I launch the simple following script which is nothing but the end of Allrun:

#!/bin/sh
cd ${0%/*} || exit 1    # Run from this directory

# Source tutorial run functions
. $WM_PROJECT_DIR/bin/tools/RunFunctions

runParallel potentialFoam
runParallel $(getApplication)

runApplication reconstructParMesh -constant
runApplication reconstructPar #-latestTime