| 1 | Julian is the new all-in-one boundary/finite element method (BEM/FEM) package |
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| 2 | for GNOME. It is named after the late Professor Julian Szekely of MIT, who |
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| 3 | was a pioneer in the use of mathematical modeling (including the finite element |
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| 4 | method) to improve materials processing operations. |
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| 5 | |
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| 6 | The inspiration to write Julian came at a NIST Green's Function Library |
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| 7 | workshop organized by Vinod Tewary and Prof. Frank Rizzo of Iowa State |
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| 8 | University. Because of restrictions on releasing Rizzo's group's source code, |
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| 9 | this project was envisioned as a new Boundary Element package with the |
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| 10 | following features: |
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| 11 | |
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| 12 | - Open-source development model to accelerate development. |
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| 13 | |
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| 14 | - GNU autoconf/automake/libtool system for straightforward portability across |
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| 15 | UNIX and cygwin (Win32) platforms. |
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| 16 | |
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| 17 | - Uses native system BLAS for optimal dense matrix performance. |
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| 18 | |
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| 19 | |
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| 20 | Future expansion plans include: |
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| 21 | |
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| 22 | - GNOME desktop GUI client using libglade. |
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| 23 | |
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| 24 | - A mesh generation API with flexible surface shape definition and automatic |
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| 25 | meshing of surfaces and volumes. Routines for dynamic remeshing based on a |
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| 26 | "gradient vector" field. Possibly Surface Evolver functionality. |
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| 27 | |
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| 28 | - A run-time module loading system to incorporate (without recompiling) new: |
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| 29 | * Green's functions |
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| 30 | * FEM equations |
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| 31 | * function-based boundary conditions, including nonlinear Robin conditions |
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| 32 | |
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| 33 | - Time stepping with mesh deformation, e.g. for fatigue crack growth or |
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| 34 | sintering simulations in BEM, and all sorts of others in FEM. |
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| 35 | |
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| 36 | - Dislocations in a BEM body, with rules for motion as a function of local |
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| 37 | stress state, and automatic update of discretization. Note that interactions |
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| 38 | among dislocations and with voids, inclusions, etc. is largely automatic. |
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| 39 | |
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| 40 | - In addition to BEM and FEM, a Direct Simulation Monte Carlo (DSMC) interface |
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| 41 | in the julian library which makes use of the cool mesh objects. |
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| 42 | |
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| 43 | ------------------------------------------------------------------------------- |
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| 44 | |
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| 45 | Release Notes for Version 0.9: |
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| 46 | |
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| 47 | This is not the best release as far as QA goes: |
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| 48 | |
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| 49 | - Several tests just don't work, some for missing input files, others for |
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| 50 | reasons I don't quite understand (like dgetri fails but p_dgetri works??). |
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| 51 | - I haven't updated the documentation in years. |
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| 52 | - Translations are woefully out of date and I'm not planning to update them. |
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| 53 | - A lot of inelegant functions slipped in as my student was finishing his |
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| 54 | Ph.D. thesis (funny how that happens). |
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| 55 | |
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| 56 | Notes: |
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| 57 | |
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| 58 | 1) To use from SVN: |
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| 59 | - Get the source using: |
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| 60 | svn co svn+ssh://[email protected]/usr/local/svn-powell-repos |
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| 61 | - ./autogen with configure options or NOCONFIGURE=y beforehand |
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| 62 | - configure and make as usual |
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