About Us

TrueGrid® is a commercial preprocessor for many FEA (Finite Element Analysis) and CFD (Computational Fluid Dynamics) simulation codes.  It's a computer program used to tessellate a geometric model into hexahedral brick elements and quadrilateral shell elements.  The results, called a mesh or a grid, is required by computer simulation codes that model the behavior of fluids, structures, and other complex physical systems.  TrueGrid® removes the drudgery of modeling large complex objects, drastically reducing the time involved, while providing the highest quality meshes.

XYZ Scientific Applications, Inc. was founded in 1991 by the late Dr. Robert Rainsberger.  After serving 4 years in the U.S. Air Force, Dr. Rainsberger earned his B.S. in mathematics at the University of Illinois.  He was then employed by Lawrence Livermore National Laboratory for two years as a computer scientist before entering the University of California, Berkeley.  In 1988 he received his Ph.D.  He then returned to Lawrence Livermore National Laboratory to continue working on 3D hex mesh generation until 1991.  At that time, he began development of his only product, TrueGrid®.  Years of experience and hard work lead Dr. Rainsberger to improving mesh generation methods for FEA, including the Projection Method and the Multi-Block Method.  Dr. Rainsberger has published numerous papers in mesh generation, but the greater majority of his work remains a trade secret of the corporation.  In 2005, Dr. Rainsberger solved the Schneiders' open problem (This result is unpublished).  This led to a new provable method of automatic hexahedral mesh generation.  

Customers throughout the world in diverse industries have worked with XYZ Scientific Application to design their meshes or have used TrueGrid^® to solve problems that could not be solved otherwise. Read what some of his customers have to say. 

Some of the most notable uses of TrueGrid^® include the modeling of: