[fisherju3800]

Hello,

I am attempting to simulate a disc brake in Star-CCM+. I have a very simple 3D geometry so far with a rotor and pads. This is a solid simulation only. The simulation is transient and I am applying a rotation to the brake rotor.

I would like to model heat generated at the brake pads so that it heats the rotor as it turns. I have tried an in-place contact interface, but to do that I must have the pads imprinted on the rotor. When the rotor mesh rotates, the imprinted boundary rotates with it. Thus heat is only passed to the rotor when that imprinted boundary goes past the pads. I tried removing the imprint, but then the volume mesh does not complete successfully due to a connectivity error.

I would appreciate any recommendations on how I might be able to achieve this. I have scoured the help information, but haven't found anything that discusses an interface between a moving and stationary part.

[ping]

this a rare case when you should not use imprint and also delete contacts in parts

you should separate the two surfaces that are in contact up in 3d-cad or in parts - ie the pad contact surface and the annular disc contact surface - as separate wall boundaries then mesh both parts separately

now down in regions manually create the interface between those two surfaces and it will all work fine

[fisherju3800]

Thank you for the recommendation. I will give it a try.