Numerical simulation of a stabilizing Poiseuille-type polymer fluid flow in the channel with elliptical cross-section

A. Blokhin, B. Semisalov

Результат исследования: Научные публикации в периодических изданияхстатья по материалам конференциирецензирование

Аннотация

This work is devoted to the numerical analysis of stabilization of the incompressible viscoelastic polymer fluid flow in the channel with elliptical cross-section. To describe the flow, mesoscopic rheological relations are used, and resolving non-stationary equations are derived. For solving them a special pseudo-spectral method is developed and implemented. As time increases, under certain conditions on the parameters of flow the solution to the nonstationary problem stabilizes and converges to the one of three branches of the solution to the corresponding stationary problem. It is shown that the variation of the parameters describing polymer microstructure leads to the switch of stabilized solution between these branches. The work provides the results of simulation of the flow stabilization and the analysis of the threshold values of parameters at which the switching occurs.

Язык оригиналаанглийский
Номер статьи012014
ЖурналJournal of Physics: Conference Series
Том2099
Номер выпуска1
DOI
СостояниеОпубликовано - 13 дек. 2021
СобытиеInternational Conference on Marchuk Scientific Readings 2021, MSR 2021 - Novosibirsk, Virtual, Российская Федерация
Продолжительность: 4 окт. 20218 окт. 2021

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  • 1.03 ФИЗИЧЕСКИЕ НАУКИ И АСТРОНОМИЯ

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