Pointwise offers two approaches to handling dirty and complex geometry. The first approach is fault tolerant meshing, in which we mesh the geometry as is and then heal any problems on the mesh level. The second, newer approach is Solid Meshing.
After just a few hands-on tutorial sessions, engineering seniors and graduate students at West Virginia University (WVU) were able to generate a variety of grids using Pointwise, learning how mesh topology, dimensionality, and resolution affect solution accuracy for a variety of internal and external flow problems.
Through two U.S. Government Small Business Innovation and Research (SBIR) contracts, Pointwise, Inc. has embarked on a multi-year effort to include a comprehensive set of overset grid assembly (OGA) diagnostic tools into its Pointwise software.
“We know embarrassingly little about how the mesh affects the CFD solution,” said Prof. Carl Ollivier-Gooch of the University of British Columbia. That statement is counter to what we all know to be true in practice, that a good mesh helps the computational fluid dynamics (CFD) solver converge to the correct answer while minimizing the computer resources expended.