------------------------------ From: Lutz Grosz Date: Tue, 11 Mar 1997 13:50:20 +1100 (EST) Subject: VECFEM, Version 3, is Released VECFEM (version 3) is released now ! VECFEM is a finite element solver for non-linear systems of boundary and initial boundary value problems on arbitrary 1D, 2D and 3D domains. Important features are * for parallel and vector computers * Tcl/tk-based graphical user interface * MAPLE-based code generator More informations are available at the URLs: http://www.uni-karlsruhe.de/~vecfem http://wwwmaths.anu.edu.au/~vecfem Lutz Grosz CMA/SMS, Australian National University (ANU), Canberra, Australia e-mail: lutz.grosz@maths.anu.edu.au ------------------------------ From: Robert Schneiders Date: Fri, 14 Mar 97 10:04:37 +0100 Subject: Latest News in Mesh Generation Latest News in Mesh Generation "Mesh Generation and Grid Generation on the Web": http://www-users.informatik.rwth-aachen.de/~roberts/meshgeneration.html You can find the same list with hyperlinks there. If you can contribute to this column, please let me know (robert@feanor.informatik.rwth-aachen.de)! o Studentship at the department of mechanical engineering, University of British Columbia: Improvement and extension of existing triangular and tetrahedral mesh generators (contact Carl-Ollivier Gooch, cfog@mech.ubc.ca). Application deadline is March 31. o David Kornmann (david@stone.fi) announces SD, a fully dynamic constrained Delaunay triangulation engine for realtime triangulation. o Information on the 6th International Meshing Roundtable, October 13-15, 1997, Park City, Utah, is available online at http://sass577.endo.sandia.gov/~drwhite/6IMR/index.html. o Mesh2d and mesh3d, programs for triangular / tetrahedral mesh generation from Bilge Kaan Karamete(Kaan@rorqual.cc.metu.edu.tr), are available on the net. o There are new open positions for people with experience in mesh generation. o Bojan Niceno (niceno@univ.trieste.it) has announced his two- dimensional quality mesh generator Easymesh (generation of constrained Delaunay triangulations). o Mark Filipiak's (mjf@epcc.ed.ac.uk) technology watch report on mesh generation is available online at http://www.epcc.ed.ac.uk/epcc-tec/documents/tw-meshgen/. o Donald Hawken(dhawken@awinc.com) has announced a new version of the UGRID grid generator for 2D Euler or Navier-Stokes simulations. Demo software and a free grid-generating screen saver are available. o NASA's steering committee for surface modeling and grid generation has started to build a testcase library for surface modeling and grid generation. o QMG1.1, the new version of Stephen Vavasis' surface and volumetric grid generator, is available on the net (http://www.cs.cornell.edu/Info/People/vavasis/qmg-home.html). o The last issue of the Springer journal "Engineering with Computers" is all on mesh generation. o The proceedings of the 5th International Mesh Generation Roundtable and Conference 96, Pittsburgh, Pennsylvania, U.S.A. (1996), are available online at http://sass577.endo.sandia.gov:80/9225/ Personnel/samitch/roundtable96/accept-list.html. Robert Schneiders Lehrstuhl fuer Angewandte Mathematik, insb. Informatik RWTH Aachen Ahornstr. 55 52056 Aachen Germany email: robert@feanor.informatik.rwth-aachen.de WWW: http://www-users.informatik.rwth-aachen.de/~roberts/ Tel.: +241-804558 Fax: +241-8888215 ------------------------------ sci.math.num-analysis #36115 (6 + 300 more) [1]--[1] From: "N. Sukumar" Newsgroups: comp.graphics.algorithms,sci.math.num-analysis [1] Graphics package for Voronoi (1st and 2nd order) diagrams? Date: Thu Jul 24 09:05:41 EDT 1997 Lines: 16 Distribution: inet Hi, I would like some input on the following. Am interested in packages that can display the Voronoi diagram for a given set of sites, and on indicating a query point X within the hull, the Voronoi cell (2nd order) about X is displayed. Any and all info on the above would be greatly appreciated. Thanks in advance. -suku. -- N. Sukumar Home Phone: (847)491-1522 Theoretical & Applied Mechanics Work Phone: (847)467-3154 Northwestern U, Evanston IL 60208 E-mail: n-sukumar@nwu.edu WWW: *GO BLAZERS* End of article 36115 (of 36215) -- what next? [npq] sci.math.num-analysis #36140 (5 + 300 more) (1)--[1] From: Jeff Erickson Newsgroups: comp.graphics.algorithms,sci.math.num-analysis [1] Re: Graphics package for Voronoi (1st and 2nd order) diagrams? Date: Fri Jul 25 14:09:05 EDT 1997 There are about a million -- okay, okay, about a dozen -- Java applets to display Voronoi diagrams, most with source code available. I suggest starting with one of those. http://www.cs.duke.edu/~jeffe/compgeom/demos.html#delaunay Non-Java Voronoi diagram code is listed at http://www.geom.umn.edu/software/cglist/lowdvod.html http://www.cs.duke.edu/~jeffe/compgeom/code.html#voronoi As far as I know, none of the applets display second-order Voronoi cells, but some of the non-Java code can compute them. It shouldn't be very hard to add on. -- Jeff Erickson Center for Geometric Computing jeffe@cs.duke.edu Department of Computer Science http://www.cs.duke.edu/~jeffe Duke University End of article 36140 (of 36215) -- what next? [npq] ------------------------------ From: Carl Ollivier-Gooch Date: Wed, 28 Jan 1998 12:48:15 -0800 (PST) Subject: New 2D/3D Unstructured Mesh Generator GRUMMP Generation and Refinement of Unstructured Mixed-Element Meshes in Parallel The goal of the GRUMMP project is to develop automatic mesh generation software for unstructured meshes with mixed element types. The software will be able to produce high-quality meshes which meet user-defined mesh density requirements, using elements appropriate for the geometry and physics of a particular problem. We envision a system in which common types of physical problems have pre-defined mesh sizing and element aspect ratio functions, allowing easy generation of meshes for these applications areas. For flexibility and generality, the user will also be able to prescribe these functions (for totally different applications) or modify the pre-defined behaviors (to provide a quality mesh in the wake of an airplane wing, for example). GRUMMP Features The initial version of the GRUMMP libraries has been released, including executables for two- and three-dimensional mesh generation and improvement and for three-dimensional scattered data interpolation. - Two-dimensional and three-dimensional simplicial mesh generation - Automatic creation and use of geometric length scale based on input data - Mesh quality assessment using numerous geometric quality measures - Improvement of existing two- and three-dimensional meshes - Complete set of mesh manipulation primitives: + Local reconnection --- face swapping and edge removal (latter in 3D only) + Optimization-based vertex smoothing --- guaranteed better than Laplacian + Point insertion and/or deletion to match local length scale - Mesh generation and improvement use the same primitives and length scale calculation, providing uniform results from both processes - Flexible I/O format (available in 2D; soon to be available in 3D) The software is available in source form via ftp at ftp://tetra.mech.ubc.ca/pub/GRUMMP/GRUMMP-0.1.0.tar.gz For more information, including an online copy of the User Guide, visit the GRUMMP home page at http://tetra.mech.ubc.ca/GRUMMP/index.html or send email to the developer at cfog@mech.ubc.ca. Carl Ollivier-Gooch cfog@mech.ubc.ca Department of Mechanical Engineering Voice: +1-604-822-1854 University of British Columbia Fax: +1-604-822-2403 2324 Main Mall URL: http://www.mech.ubc.ca/~cfog Vancouver, BC V6T 1Z4 Canada ------------------------------ From: Daya Reddy Date: Thu, 29 Jan 1998 09:37:17 SAST-2 Subject: New Book on Functional Analysis and Finite Elements INTRODUCTORY FUNCTIONAL ANALYSIS with Applications to Boundary-Value Problems and Finite Elements B. Daya REDDY, University of Cape Town, Rondebosch, South Africa SPRINGER-VERLAG TEXTS IN APPLIED MATHEMATICS, VOLUME 27 1998 488 PAGES + 144 ILLUS. HARDCOVER $59.95 ISBN 0-387-98307-4 This book provides an introduction to functional analysis and treats in detail its application to boundary-value problems and finite elements. It is intended for use by senior undergraduate and graduate students in mathematics, the physical sciences and engineering, who may not have been exposed to the conventional prerequisites for a course in functional analysis, such as real analysis. Researchers wishing to learn the basic ideas of functional analysis would also find the text useful. The text is distinguished by the fact that abstract concepts are motivated and illustrated wherever possible. Readers of this book can expect to obtain a good grounding in those aspects of functional analysis which are most relevant to a proper understanding and appreciation of the mathematical aspects of boundary-value problems and the finite element method. Contents: Sets * Sets of Functions and Lebesgue Integration * Vector Spaces, Normed and Inner Product Spaces * Properties of Normed Spaces * Linear Operators * Orthonormal Bases and Fourier Series * Distributions and Sobolev Spaces * Elliptic Boundary-Value Problems * Variational Boundary-Value Problems * Approximate Methods of Solution * The Finite Element Method * Analysis of the Finite Element Method * References * Solutions to Exercises ------------------------------