FORT WORTH, TX (10 July 1997) – Pointwise today announced the release of version 12 of their popular numerical grid generation software, Gridgen. It is the first release of Gridgen to be written using the OpenGL 3D graphics application programming interface. Other new additions for this version are full support for trimmed surfaces, a scripting language interface for automating repetitive tasks, and a more robust three-dimensional elliptic grid generator.
"At first, we thought converting Gridgen to OpenGL would help us internally by making porting to more graphics hardware easier but would be transparent to our users," said John P. Steinbrenner, Vice President for Research & Development at Pointwise. "However, we found that this was also a good opportunity to make Gridgen's graphics operations faster and tighter. We ended up with about a 30 percent speedup for most graphical operations and for some manipulations we are seeing a full order of magnitude speedup. Plus, we are getting the portability we wanted."
Version 12 is the first release to support a text based interface in addition to Gridgen's traditional graphical interface. The text interface can be used to automate parametric studies, run large problems in batch mode, and set user preferences.
This is also the first version of Gridgen to include an interactive, three-dimensional, elliptic grid generator. Past versions required the use of an external batch program. The three-dimensional, elliptic grid generator is used to optimize grid point distributions on volumes that will be analyzed with computational fluid dynamics and finite element analysis software.
Gridgen is used by engineers and scientists to construct meshes for use with CFD and finite-element analysis software. In use since 1984, it is recognized for its coherent graphical interface and for giving its users fine control of grid spacing, orthogonality, and smoothness, all of which affect the accuracy of analysis results. Gridgen is a complete preprocessing toolkit that includes geometry modeling, IGES import, grid generation, and direct interfaces to software packages including TEAM, NPARC, VSAERO, INCA, GASP, CFX, FLUENT, FLUENT/UNS, RAMPANT, TASCflow, STAR-CD, Phoenics, PATRAN, and NASTRAN. Gridgen v12 is available for Silicon Graphics®, Hewlett-Packard®, and IBM® workstations.
Pointwise, Inc. is a premier supplier of grid generation software and services for the computational analysis community. In addition to developing, supporting, and marketing the Gridgen product family, the company is involved in numerous research and software development projects related to numerical grid generation. Further information on Gridgen can be obtained from Pointwise's World Wide Web home page www.pointwise.com.
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