About Node Distributions

Node distributions are optional; you can allow the automated processing to place all the nodes for your surface mesh. However, combined with other parameters like mesh size, node distributions can help ensure that your mesh accurately represents the model for the type of simulation you are defining.

You define the node placement by creating an edge distribution. You pick a topological edge in the model and set the number of element edges to be created along it or set the desired element edge size. When defining a single edge distribution, you can also customize the type of distribution. For example, if you want six element edges you get seven nodes to account for the endpoints. You can also choose a uniform or arithmetic distribution. For non-uniform distributions, you can use symmetry to control the distribution along the edge. The image below shows a uniform distribution, an arithmetic progression, and a progression with symmetry.

You can also create distributions on multiple edges at the same time. If you select a continuous chain of edges, you can either define one distribution for use on each edge or define one distribution to apply across the set of edges. If you pick three edges and distribute 10 element edges, the first method results in 10 element edges along each and the second results in 10 element edges across the total length (three, three, and four on the selected edges).