Determine the time step size for passive particle tracking -- CFD Online Discussion Forums

August 10, 2017, 17:37	Determine the time step size for passive particle tracking	#1
randolph Senior Member Reviewer #2 Join Date: Jul 2015 Location: Knoxville, TN Posts: 141 Rep Power: 10	How do u guys usually determine the time step size for passive particle tracking on a pre computed flow field? I notice OpenFOAM only offer low order tracking scheme with fixed time step size. While, SEEMLY, the automated adaptive time step scheme offered by Fluent provides a more efficient approach. Thanks in advance Randolph

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