Foreign Collaborators

Dr. W. Skorupa, Institut fur Ionenstrahlphysik und Materialforschung, Forschungszentrum Rossendorf, e.V., POB 510119, D-01314, Dresden, GERMANY.

Prof. K. Leo, Institut fur Angewandte Photophysik, Technische Universitat Dresden, Mommsenstrasse 13, D-01062, Dresden, GERMANY.

Prof. H. Bernas, Centre de Spectrometrie nucleaire et de Spectrometrie de masse, Batiments 104 et 108 - 91495 Orsay Campus, FRANCE.

№ - 189 New Method of Superstrong Gas Compression

Full Title:	New Method of Superstrong Gas Compression
Technology Field(s):	FUS-PLA: Fusion / Plasma Physics

Contributors

Anatoliy Fedorovich Sidorov

Institute of Mathematics and Mechanics (Mathematics & Mechanics Inst) 16, S.Kovalevskoy str., Ekaterinburg, Sverdlovsk reg., 620219, Russia Phone: 7+3432+748414; 7+3432+748332 Fax: 7+3432+742581 afsid@dir.imm.intec.ru

Present Status of Research

Brief Description of Research

In the papers by J.Nakkols, E.I.Zababakhin, I.E.Zababakhin, the processes of unlimited unshocked cylinder and sphere of gas compression were investigated. These processes of strong unshocked compression can be used to initiate the thermonuclear synthesis.

In 1991-1994 the lows of control of unlimited unshocked compression of prisms, tetrahedrons, cone-shaped bodies were constructed. These processes allow to achieve higher degrees of cumulation, than the spherical compression processes allow. Moreover in obtaining the superhigh densities the energy expenditure in such processes are lower than in spherical compression.

These processes require the creation of time - spatial pressure distribution at target surface by physical fields and seem to be principally new and have no analogies in the world scientific issues.

Legal Aspects None in this research.

Special Facilities None in this research.

Scientific Papers

Sidorov A.F., Khairullina O.B. Shock-free Conical Compression and Expansion of Gas // J. Appl. Maths Mechs. Vol.58. No. 4. Pp. 657-668. 1994.

Sidorov A.F. Mathematical modelling of the processes of unshocked gas compression // Russ. J. of Numer. Analysis and Math. Modelling. Vol.10. No 3. Pp. 255-278. 1995.

Foreign Collaborators

Prof. A. Misiuk, Institut Technologii Elektronowej, al. Lotnikow 32/46. 02-668 Warszawa, POLAND.

№ - 190 Method of Optimal Grid Generation

Full Title:	Method of Optimal Grid Generation
Technology Field(s):	INF-SOF: Information and Communications / Software

Contributors

Anatoliy Fedorovich Sidorov	Institute of Mathematics and Mechanics (Mathematics & Mechanics Inst) 16, S.Kovalevskoy str., Ekaterinburg, Sverdlovsk reg., 620219, Russia Phone: 7+3432+748414; 7+3432+748332 Fax: 7+3432+742581 afsid@dap.imm.intec.ru
Olga B Khairullina	Institute of Mathematics and Mechanics (Mathematics & Mechanics Inst) 16, S.Kovalevskoy str., Ekaterinburg, Sverdlovsk reg., 620219, Russia Phone: 7+3432+748332 Fax: 7+3432+742581 kob@dap.imm.intec.ru
Olga V Ushakova	Institute of Mathematics and Mechanics (Mathematics & Mechanics Inst) 16, S.Kovalevskoy str., Ekaterinburg, Sverdlovsk reg., 620219, Russia Phone: 7+3432+748332 Fax: 7+3432+742581 uov@dap.imm.intec.ru

Present Status of Research

Brief Description of Research

A new variational method of multi-dimensional structured difference grids satisfying special optimality criteria has been suggested. The requirements of closeness of the grid to the uniform one, orthogonal one and adaptation to the given function or to the solution of the partial differential equation have been chosen as the optimality criteria [1]. The distinctive feature of the approach which makes it unique and different from others lies in special way of formulation of the criterion of uniformity. This formulation provides good computational properties of grids. Effective method and universal program with minimum data input for generation of block-structured grids with different complex topologies of mapping in multiply-connected two-dimensional domains have been elaborated [2, 3]. Grids possess smoothness of grid lines on the boundaries of blocks. Algorithms and programs of adaptive grid generation have been also developed [4]. Geometrically optimal grids are successfully used for the calculation of gasdynamics inner problems in the domains of complex configurations [5]. Joint collaborative research with Mississippi State University within the Project on Grid Quality and Adaptation Applications for Complex Field Configurations financed by the National Research Council (Cooperation in Applied Science and Technologies / CAST) have been carried out.

Legal Aspects None in this research.

Special Facilities None in this research.