2D SIMULATION DATA INTERPOLATION TECHNOLOGY IN THE "BAZIS" PROGRAM PACKAGE
S. V. Gagarin, N. V. Galitskaya, O. V. Belomestnykh, S. I. Kuzmina, D. V. Mogilenskikh, E. A. Prib, A. A. Ushkova
VANT. Ser.: Mat. Mod. Fiz. Proc 2015. Вып.1. С. 66-77.
The difference grid used for Lagrangian calculations in mathematical continuum mechanics modeling can get severely distorted and make further calculations impossible. In this case, the user must create a new grid generally preserving the geometry of the model’s domains and run a program to interpolate (remap) physical quantities from the old difference grid to the new one.
RFNC-VNIITF has developed a program package called BAZIS, which includes the following subsystems: - descriptive (tabulated) representation of simulation data;
- graphic representation of simulation data;
- comparison of simulation graphs;
- preprocessing (GeomGrid2);
- interpolation job setup;
- interpolation initiation;
- calculations of mean (balance) values of physical quantities.
The paper describes the procedures of interactive setup of interpolation jobs, their initiation and analysis of their results.
The first three subsystems enable 2D simulation data analysis in the descriptive and tabulated form. GeomGrid2 generates a new difference grid. The interpolation job setup subsystem enables interactive definition of remap jobs. The interpolation initiation subsystem allows the user to launch the remap program both on the local computer and on the remote computational server. The mean value subsystem enables the comparison of balance values of physical quantities (mass, volume, density etc.) in simulations before and after interpolation.
Introduction of BAZIS reduced the time spent on interpolation and the probability of remapping errors. Keywords: continuum mechanics, view, STDV (standard two-dimensional view), interpolation, initial geometry, difference grid, physical quantities.
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English
