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two phase laminar flow in 3d
Posted 10 giu 2016, 01:02 GMT-4 Fluid & Heat, Computational Fluid Dynamics (CFD), Mesh, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers 3 Replies
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hi I m supposed to simulate two-phase laminar flow problem (moving mesh).
the size of a cyl is ,
r=5 h=5
The bottom of the cylinder is fixed and the top of the cylinder is moving with a certain speed in normal direction.
the side face of the cyl. is exposed to the air.
geometry
cyl : r=5 h=5
material water
physics
wall at h=0 : no silp and predescribed mesh velocity =0
wall at h=5 : moving wall u=0.01 m/s and predescribed mesh velocity=0.01m/s
r=5 external fluid interface predescribed mesh velocity inactive
the error mesg. :
remeshing fulfilled for initial time. or last time step of newton method is not converged.
singularity problem..etc
help.
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I am doing capillary filling in 3D. I hav same problem .
Do you get the solution.
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thank you for your kind reply. i changed remesh condition set from 0.2 to 0.4 but it returned following error.
failed to find consistent initial values (automatic remeshing)
is there any change in getting a solution if i use the module "deformed geometry " instead of "moving mesh"?