GeomGrid2 UNIFIED SYSTEM FOR PREPROCESSING OF 2D MATHEMATICAL MODELING PROBLEMS
O. V. Belomestnykh, S. V. Gagarin, D. V. Mogilenskikh, E. A. Prib, A. A. Ushkova
VANT. Ser.: Mat. Mod. Fiz. Proc 2015. Вып.2. С. 59-68.
For a long time RFNC-VNIIEF has been developing program complexes for numerical simulations in the field of continuum mechanics. The role of efficient methods for data preparation for calculations is constantly growing. The GeomGrid2 system has been developed to provide the required functionality of the initial data preparation process for 2D problem calculations. It has modern ergonomic interface. Due to the developed efficient algorithms and functions for visual and numerical analysis of geometry, grids and particles, this system enables the comprehensive control of the initial data preparation for 2D problems. This paper describes the GeomGrid2 system user interface, its main functionality which enables forming the 2D geometry “from scratch” or uploading it from dwg/dfx-files (AutoCAD) and hdf4/hdf5-files with standard 2D cross-sections, building blocks and domains within the problem, building and optimizing computing grids (structured and non-structured ones), generating particle fields, setting materials for domains and distributing them between the grid cells. The formed input data is downloaded from the system into various-format files, which then are used to start 2D problem calculations by RFNC-VNIIEF mathematical simulation program complexes. Keywords: RND, initial geometry, SDR format, cross-section, XML format, AutoCAD, computed domain, physical sub-domain, structured grid, non-structured grid, physical values.
|
English
