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Model of the Dynamics of Disperse Fractions in Counter Flows of a Metal Powder and Polymer in the Formation of a Composite Material

  • HEAT AND MASS TRANSFER AND PHYSICAL GASDYNAMICS
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Abstract

A numerical model and description of the process of the coagulation of metal particles and polymer droplets in counter flows are presented. The used model of a two-fraction gas suspension consists of metal particles and liquid polymer droplets with air as a carrier medium. A system of equations of motion of a viscous compressible heat-conducting gas is used to describe the motion of the carrier medium. It takes into account the exchange of momentum and energy with fractions of the dispersed phase, each of which is described by a system of gas-dynamic equations that take into account the interphase exchange of momentum and energy with the carrier medium. The system of equations for a two-fraction gas suspension is represented in generalized curvilinear coordinates and is solved with an explicit predictor–corrector method with a spatial operator split into directions and a nonlinear correction scheme at each time step. The temporal and spatial characteristics of the process of the coagulation of metal particles and polymer droplets of a given initial radius are considered with respect to the size of the metal-powder particles. The numerical model can be used to describe the technology for the production of a metal-polymer composite material.

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Funding

The study was carried out with the financial support of the Ministry of Education and Science of Russia in the framework of the fulfillment of obligations under agreement no. 075-03-2020-051/3 dated 09.06.2020 (topic no. fzsu-2020-0021).

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Authors and Affiliations

  1. Tupolev Kazan National Research Technical University, 420111, Kazan, Russia

    A. L. Tukmakov

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  1. A. L. Tukmakov
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Correspondence to A. L. Tukmakov.

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Tukmakov, A.L. Model of the Dynamics of Disperse Fractions in Counter Flows of a Metal Powder and Polymer in the Formation of a Composite Material. High Temp 59, 307–313 (2021). https://doi.org/10.1134/S0018151X21020127

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  • DOI: https://doi.org/10.1134/S0018151X21020127

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