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Showing results 1 to 6 of 6 Search took 0.00 seconds. Search: Posts Made By: Roman

Forum: STAR-CCM+ October 9, 2013, 14:12

Replies: 17 Modelling flow around a Smooth Cylinder - Drag coefficient HELP Views: 5,274 Posted By Roman Looks good. I would set walls of the domain to a... Looks good. I would set walls of the domain to a "slip" condition, you don't really need velocity gradient calculated on them, it will speed things up a little. How many iterations have the...

Forum: STAR-CCM+ October 9, 2013, 11:22

Replies: 17 Modelling flow around a Smooth Cylinder - Drag coefficient HELP Views: 5,274 Posted By Roman This sounds kind of small for a cylinder with... This sounds kind of small for a cylinder with diameter of 0.2m. Are you sure you are not getting any reflections from the walls?

Forum: STAR-CCM+ October 9, 2013, 10:58

Replies: 17 Modelling flow around a Smooth Cylinder - Drag coefficient HELP Views: 5,274 Posted By Roman How large is your fluid domain? How large is your fluid domain?

Forum: STAR-CCM+ October 9, 2013, 03:10

Replies: 17 Modelling flow around a Smooth Cylinder - Drag coefficient HELP Views: 5,274 Posted By Roman Try reducing it to 10%. Run the simulation and... Try reducing it to 10%. Run the simulation and keep cheking on your wall Y+ values on the cylinder walls in a scalar scene. Values should be as close to 1 as possible, preferably lower.

Forum: STAR-CCM+ October 9, 2013, 02:53

Replies: 17 Modelling flow around a Smooth Cylinder - Drag coefficient HELP Views: 5,274 Posted By Roman Wall Y+ is just a nondimensional number to help... Wall Y+ is just a nondimensional number to help you determine if your mesh sufficient to describe the near wall velocity profile. You can read more about that here...

Forum: STAR-CCM+ October 9, 2013, 02:41

Replies: 17 Modelling flow around a Smooth Cylinder - Drag coefficient HELP Views: 5,274 Posted By Roman As both comments above stated, check your wall... As both comments above stated, check your wall y+. How many prismlayers are you operating with?

Showing results 1 to 6 of 6

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