Recent developments in applied mathematics and mechanics: theory, experiment and practice. Devoted to the 80th anniversary of academician N.N.Yanenko

Akademgorodok, Novosibirsk, Russia, June 24 - 29, 2001

Abstracts

Siberian participants

Computer simulation of mechano-chemical processes in powder mixtures

Leitsin V.N., Skripnyak V.A., Dmitrieva M.A.

Tomsk State University,
Physical-Technical Faculty (Tomsk)

The gasless exothermal transformations in powder mixtures modified by shock loading are modeled. The presence of a macrostructure of powder mixture and possible physical mechanisms of heat and mass transfer, phase changes, processes of plastic deformation, defining conditions of chemical transformations are taken into account. One or two-temperature heat conduction equations with heat sources and sinks are used for a sequence of a macrostructure cells. All thermal parameters are considered as effective in local points of powder medium. In interior microvolumes the possible mass transfer, chemical transformations, parameters of convective heat transfer and defined by these processes local thermal properties are modeled. The shock loading is modeled at a micromechanical level with using of modified model of a porous medium of Nesterenko.

Full Text in Russian: PDF (241 kb)
Note. Abstracts are published in author's edition

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