POLYDATA - Disabling the actual geometric (Eulerian) mould motion for contact with velocity
|
When assigning a mould motion in POLYDATA, the mould domain moves accordingly in time. Some simulation cases involving a contact with a solid body, whose domain should preferably not move in the Eulerian sense. How can this be fixed? In POLYDATA, when defining the mould motion for a contact problem, the user should select the option "Disable actual motion" in the menu. This will simply cancel the geometric motion of the mesh part used as solid body for the contact. This can be accessed as follows -> Sub-task - -> Define moulds - - -> Mould <n> - - - -> Mould motion Important remarks: - This action DOES NOT cancel possible non-vanishing velocity previously imposed. - Within the present context, cable coating process is a flow case solved by combining contact features and a high tangential velocity component. Originally, contact features have been developed for blow moulding and thermoforming cases, i.e. where the contact occurs essentially along the normal direction, and where a Lagrangian representation can be used. Cable coating applications involve a high tangential velocity and are not suited for a Lagrangian representation. These applications are thus somewhat beyond the scope of the current capability. In some circumstances the calculation can succeed, in other ones it will fail. - Only translation velocities can be assigned when a contact simulation is defined. |
||
|