| |
 |
 |
Since 1978
Published in Sarov (Arzamas-16), Nizhegorodskaya oblast |
RUSSIAN FEDERAL
NUCLEAR CENTER -
ALL-RUSSIAN RESEARCH INSTITUTE
OF EXPERIMENTAL PHYSICS |
|
 Русский |  English
|
Issue No 1, 2002 |
DEVELOPMENT OF NUMERICAL METHODS AND PROGRAMS FOR CALCULATION OF ONE-DIMENSIONAL SPECTRAL PROBLEMS OF HEAT RADIATION TRANSFER IN VNIIEF (FO problems)
V.A. Elesin, V.E. Troshchiev, V.F. Yudintsev
VANT. Ser.: Mat. Mod. Fiz. Proc. 2002. No 1. P. 11-28.
The paper describes the history of VNIIEF design and development of methods and programs for calculating one-dimensional problems of heat radiation in kinetic approximation, gained symbolic notations - FO problems, FO methods and programs. Principle points of FO problems statement and solution techniques are formulated; computational difficulties which emerged during production task calculations are analyzed; an extension and improvement of task statement at putting into operation computers of a new generation are traced; numerical and theoretical studies made with difference schemes and iterative algorithms of FO techniques are reviewed.
| | NUMERICAL SIMULATION OF ELECTRICAL FOIL EXPLOSION S.P. Zapassky, A.A. Sadovoy, A.A. Solov'ev, T.G. Sysoeva
VANT. Ser.: Mat. Mod. Fiz. Proc. 2002. No 1. P. 29-37.
The paper presents a 2-D semiphenomenological model for electrical foil explosion, founded on experimental relationship between heated foil conductivity and specific energy introduced in it as well as calculations of current density and electric intensity in the foil. A numerical algorithm has been developed for solving relevant equations. The results of calculations performed to study a current lead effect on an energy release in a foil are given.
| | MATERIAL CONTROL AND ACCOUNT SYSTEM ACCORD-2 A.A. Anishchenko, S.V. Burtsev, A.M. Grigor'ev, N.M. Mikiychuk, S.N. Nikonov, E.Yu. Samsonov, O.V. Sakhno, E.E. Santalova, O.N. Tasetdinov
VANT. Ser.: Mat. Mod. Fiz. Proc. 2002. No 1. P. 38-46.
Basic principles of constructing and operating ACCORD-2000 system, providing computerized control and accounting of nuclear materials are presented. The system is to be used at the nuclear weapons complex institutions of different types, including those handling materials in a bulk-form. The system is adaptable, easily modifiable and adjustable. Much attention has been paid to information security.
| | DEVELOPMENT AND SOFTWARE SUPPORT OF DCOM-COMPONENT INTERACTION SCRIPTS IN DISTRIBUTED COMPUTER-AIDED SYSTEMS A.M. Grigor'ev, A.S. Santalov
VANT. Ser.: Mat. Mod. Fiz. Proc. 2002. No 1. P. 47-51.
The paper sets out basic principles of constructing software component of material control and accounting system, providing consistent interaction of its different subsystems by interpreting scripts of technological operation performance at the institution. Major principles of constructing script description language, internal structure of classes and interfaces, provided by the component are described. The system is adaptable, easily modifiable and adjustable. The requirements for software subsystems are formulated. Qualifying under these requirements allows their integration into such a system.
| | GENERATION OF SQL-REQUESTS ON THE BASIS OF A FORMALIZED DESCRIPTION OF A DATA BASE AND PARAMETERS OF THE REQUEST A.A. Anishchenko, A.V. Gordeev
VANT. Ser.: Mat. Mod. Fiz. Proc. 2002. No 1. P. 52-59.
An automated generator for SQL-requests for ACCORD-2000 system for nuclear materials control and account is newly developed. This results in considerable simplification of writing and modification process for system filters, answerable for information fetching from database. A brief description of ACCORD-2000 system architecture is set out to comprehend the automated generator processing. Some information about finite automatons is given. The automated generator for SQL-requests processing is exemplified by "Containers" and "Materials" filters.
| | DESCRIPTION OF POTENTIAL PRESSURE IN A WIDE RANGE OF DENSITY CHANGE V.M. Maslov
VANT. Ser.: Mat. Mod. Fiz. Proc. 2002. No 1. P. 60-64.
A piecewise-linear model of hardening and failure of solid bodies is extended to include a relationship between potential pressure and density change over a wide range. It has been demonstrated that a tangent to the curve in the compression modulus - potential pressure plane tends asymptotically to 5/3 for metals. Model approximation for copper and lead based on data presented in literature is performed within the density-change range  .
| | [ Back ] |
|
|
| |
| |
 |
|
|