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Reply To: add gravity leads to instability, bifurcation 3D, multiphase, particles

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› Forums › OpenLB › General Topics › add gravity leads to instability, bifurcation 3D, multiphase, particles › Reply To: add gravity leads to instability, bifurcation 3D, multiphase, particles

October 16, 2019 at 1:05 pm #4595
mgaedtke
Participant

Hi Manuel,

the force field in OpenLB is actually a force over reference density, thus it is equivalent to an acceleration. To convert your gravitational acceleration you can use the term

converter.getPhysDeltaT()*converter.getPhysDeltaT()/converter.getPhysDeltaX()

See you at the Spring School!

Best,
Max