Problem with dynamic mesh on axis boundary -- CFD Online Discussion Forums

September 3, 2019, 12:29	Problem with dynamic mesh on axis boundary	#1
baratian New Member Ali Baratian Join Date: Oct 2013 Location: Kuhsangi, Mashhad, Iran Posts: 22 Rep Power: 13	Hi every body I am modeling a heavy sphere falling into the water, axisymmetrically. The problem is the number of nodes on the axis remains constant and leads to negative volume! I expect the near nodes get eliminated by min length criteria but does not! I have activated both remeshing and smoothing, and the axis boundary as a deforming and sphere as a rigid body sdof supplied by udf. Any help is really appriciated.

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