Mesh Growth Rate

This option is used to control the rate at which the mesh transitions between regions of different surface and volume size.

By default, the mesher will increase in size at a rate of approximately 2:1 between regions of adjacent size within the mesh. By setting this option to a value between 1.0 and 2.0, the mesh transition will be smoother across the size transitions. Setting the mesh growth rate to a value of 1.1 will force a very gradual transition between finely meshed regions to coarsely meshed regions. Setting the factor to a value of 1.8 will smooth the transition, but not as much as the lower value. Note that this option does produce smoother meshes with more gradual size transitions on the surfaces and in the volumes, but it can lead to a significant increase in the node and element count in the resulting mesh. Also, note that a setting of 1.0 or 2.0 disables this function. It will only be active when set to a value between 1.0 and 2.0.