Since 1978
Published in Sarov (Arzamas-16), Nizhegorodskaya oblast
RUSSIAN FEDERAL
NUCLEAR CENTER -
ALL-RUSSIAN RESEARCH INSTITUTE
OF EXPERIMENTAL PHYSICS
 
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VISUALIZATION OF STREAM LINES AND METHODS FOR COMPLEX VISUALIZATION OF DESCRETE VECTOR FIELDS

K. V. Dedkova, D. V. Mogilenskikh, I. V. Pavlov, V. V. Fedorov
VANT. Ser.: Mat. Mod. Fiz. Proc 2005. Вып.1. С. 71-79.

The paper describes methods for post-processing and visualization of continuum mechanics problems numerically simulated with difference methods, in particular, processing and visualization of vector fields.
Simulation methods using 2D regular difference grids are used as an example. A vector variable U is set for such a grid. Two coordinate components of the vector (Ux,Uy) are specified for each node. Each component is a scalar. Vector field is stored as two matrices Ux[M, N], Uy[M,N], where M, N are grid dimensionality.
Paper describes:
1. Algorithm for approximate determination and visualization of stream lines (SL) — post-processing of the results and determination of implicit information.
2. Functions of SL visualization — visualization methods.
3. Methods of combined application of SL visualization with other visualization functions — information content increase.
Ideas of Gouraund and Phong shading algorithms are proposed for determination of SL vector field.
The paper presents methods of animating pseudo-dynamics of SL vector fields and their implementation.


SERVICE APPLICATION FOR MULTITASKING ANALYSIS OF THE RESULTS OBTAINED IN THE NUMERICAL SIMULATION OF MATHEMATICAL PHYSICS PROBLEMS

S. V. Gagarin, K. V. Dedkova, V. V. Komosko, V. V. Fedorov, S. V. Morozov
VANT. Ser.: Mat. Mod. Fiz. Proc 2005. Вып.1. С. 111-116.

A service application for analyzing the results of problems simulated by different software complexes and stored in the database of standard time tables is described. With this application results a great number of problems is analyzed with the same promptness regardless of when they were obtained and whether they were obtained by one or more codes.
The application Is based on the STTBD access server and VIZI-ID, Matlab and MS Excel data processing and visualization systems. It is written in C++ for Microsoft Visual Studio with use of COM technology and Oracle database management system.









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