By default, Use Adaptive Sizing is set to Yes, unless Physics Preference is set to CFD or Nonlinear Mechanical (in which case the default is Capture Curvature set to Yes), or Hydrodynamics (in which case the sizing is uniform). The option you choose determines which refinement mechanisms are activated.

The following options are available:

• Resolution
• Growth Rate
• Max Size
• Mesh Defeaturing
• Transition
• Span Angle Center
• Initial Size Seed
• Curvature Min Size
• Curvature Normal Angle
• Proximity Min Size
• Proximity Gap Factor
• Proximity Size Function Sources
• Use Uniform Size Function for Sheets
• Enable Washers
• Bounding Box Diagonal
• Average Surface Area
• Minimum Edge Length