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POINTWISE RELEASES GRIDGEN V15.09 WITH SOLID MODELING
19 January 2007 - NAFEMS
| Pointwise have announced the latest release of their CFD meshing software, Gridgen Version 15.09, featuring the addition of solid modeling and solid meshing. |
Pointwise have announced the latest release of their CFD meshing software, Gridgen Version 15.09, featuring the addition of solid modeling and solid meshing. Solid meshing, the ability to import, assemble, and mesh solid models in the CAD data, complements Gridgen’s long-used fault tolerant meshing. Both approaches provide the analyst with tools for handling sloppy CAD geometry. Fault tolerant meshing avoids the issue of CAD repair by directly “healing” the mesh over gaps and overlaps through computations of proximity and adjacency. “Solid meshing takes a different approach,” said John Chawner, Pointwise’s president. “By importing solid data directly or assembling solids in Gridgen, the mesher is able to determine adjacency implicitly from the CAD topology. This makes the mesher much more efficient because it doesn’t have to compute proximity.” Also, in addition to supporting solid models, Gridgen V15.09 supports quilts, topologically linked surfaces that are to be meshed as a single unit. John Chawner continues: “Instead of working with literally hundreds or thousands of individual CAD entities that are the unfortunate result of CAD file generation and translation, the analyst can distill the geometry to the “engineering topology” consisting only of tens of entities. Instead of having 100 surface fragments that describe the suction side of a turbine blade, for example, they can simply work with 1 entity: the blade suction side.” Other new features released in Gridgen V15.09 include a deformation-based scheme for pyramid cell generation in hybrid meshes, a new native interface to the FrontFlow flow solver, upgraded native interfaces to the FIELDVIEW CFD postprocessor and the Cobalt and STAR-CD flow solvers, and ports to AMD Opteron (Windows and Linux), and the SGI Prism.
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About: NAFEMS
NAFEMS is a not for profit organisation aimed at promoting best practices and also fostering education and awareness in the engineering analysis community. In line with its objectives to promote the effective use of simulation technologies, NAFEMS is continually seeking to create awareness of new analysis methodologies, deliver education & training, and stimulate the adoption of best practices and standards by offering a platform for continuous professional development.By the late 1970s and early 1980s, as computing power became more widely available, increasingly industry was starting to solve practical engineering problems using finite element analysis techniques. There was however considerable concern that the accuracy of the methods, and software implementations, required to be verified in order to allow the results to be effectively used. Following extensive lobbying, by industry and academia, the UK Government's Department of Trade and Industry (DTI) set up, and funded, a project within the National Engineering Laboratory (NEL), based in East Kilbride, Scotland, to investigate the issues. As a result the National Agency for Finite Element Methods and Standards, quickly shortened to the acronym NAFEMS, was founded as a special interest group in 1983 with a specific objective namely: "To promote the safe and reliable use of finite element and related technology" In order to keep engineers abreast of the latest developments in the Analysis World the quarterly magazine BENCHmark was launched by NAFEMS in July 1987. After seven years of seed funding by the UK government, and with the support of its industrial members, the decision was taken to launch NAFEMS Ltd as an independent not-for-profit company, owned by its member's in 1990. The company celebrated its 10th Anniversary in 2000, and has developed both the scope of its technology focus and its membership well beyond the original vision. Today NAFEMS and its members are involved in many different types of engineering simulation covering both products and processes. Membership continues to grow, now exceeding 700 corporate members in over 30 different countries. Steering groups have been set up in the UK, France, Germany, and the USA to co-ordinate local activities and interaction with members. |
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