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Forum: STAR-CCM+

January 1, 2018, 13:59

Replies: 19

DFBI problem

Views: 5,146

Posted By ping

the new solid to be used purely as a cutting tool...

the new solid to be used purely as a cutting tool needs to be larger than the rotation part ie some clearance for at least say 10 cells and preferable bigger on all sides

Forum: STAR-CCM+

December 24, 2017, 15:58

Replies: 19

DFBI problem

Views: 5,146

Posted By ping

first you need to do some cad to create a...

first you need to do some cad to create a cylinder around and containing your rotating components - easy in 3d-cad using the boolean tools or in a native cad solid modeller, and a bit harder in parts...

Forum: STAR-CCM+

September 5, 2011, 07:57

Replies: 19

DFBI problem

Views: 5,146

Posted By ping

guys believe what you like but a macro comparing...

guys believe what you like but a macro comparing torque and changing rmp converges surprisingly fast - used in windwills for example - for anyone who has not tried this technique it is worth a test....

Forum: STAR-CCM+

August 29, 2011, 02:28

Replies: 19

DFBI problem

Views: 5,146

Posted By ping

if you want to see the rotor actually move then...

if you want to see the rotor actually move then rigid body motion is the way to do it, and it this case it will be a bit more accurate than MRF, but MRF will get you close an an initial solution in...

Forum: STAR-CCM+

August 29, 2011, 01:56

Replies: 19

DFBI problem

Views: 5,146

Posted By ping

DFBI is an overkill motion model for the geometry...

DFBI is an overkill motion model for the geometry shown and might not even work - you can use either reference frame motion (and run as steady or unsteady) or rigid body motion (and run as unsteady...

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