hi,

I’ve a 3D model of a turbine blade meshed with tetra elements.

i need to catch the 3-nodes, which lie on the skin surface for all elements that discretize the blade (substantially, by choosing an element, get its nodesID that form a triangle on blade surface)

All nodes of the blade skin surface can be easily selected using a named surface, so nodal displacements and coordinates can be exported in a *.txt file.

The problem is that now I’m able to select the nodes attached to an element (NSLE command) but obviously at least one node is inside the blade.

Unfortunately I’m not so deep in Ansys apdl command; someone can suggest me how fight with this problem?

thanks to all