You can set initial meshing controls for each of the solids described in “Solid Types” from the Meshing tab of the solid's Properties dialog box.
The following are the parameters:
Element Size/Type - Determines whether the mesh element size is defined as a global, a relative, or an absolute size. If set to Global, the value in the simulation configuration is used. If set to Local Absolute, you can define a maximum element edge length. If set to Local Relative, you can set the element size in relation to the bounding box of the solid or in relation to the global element size specified in the simulation settings. If set to Local Relative or Local Absolute, a marker is placed at the center of the solid. The size of the marker is scaled to the element size. (IMeshConstraint/SizeType)
Element Size/Anisotropic Scaling Factor - Allows you to scale the elements anisotropically.
Curvature Refinement/Level Type - Controls the accuracy with which the mesh represents curved bodies/faces/edges of the solid. If set to Global, the value in the simulation parameter is used. If set to Local, you can set a value for the curvature refinement.
Curvature Refinement/Level - The curvature refinement level is a size relative the the mesh element size, d/h in the image below:
The mesh size h is selected such that d/h falls below the parameter value. Valid values are between 0.0 and 0.5, with smaller values more accurately representing curved faces and edges. Useful values are typically in the range of 0.01 to 0.4. Similar to mesh size, the smallest size setting on a particular entity will be used, so if a small global minimum curvature is set, it will be chosen over a larger local minimum curvature size.
Curvature Refinement/Minimum Size Type - Determines whether the minimum element size is defined as a global or a local value. If set to Global, the value in the simulation configuration is used. If set to Local you can define the minimum element size.
Curvature Refinement/Minimum Size - The floor for the size of the smallest element to be produced by the curvature refinement level. The value is relative to the maximum element size.