Publication:
Theoretical analysis of erosion in elbows due to flows with nano- and micro-size particles

Дата
2020
Авторы
Kosinska, A.
Kosinski, P.
Balakin, B. V.
Journal Title
Journal ISSN
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Издатель
Научные группы
Организационные подразделения
Организационная единица
Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
Выпуск журнала
Аннотация
© 2020 Elsevier B.V.The present paper focuses on the issue of erosion due to fluid flow laden with nano- and microparticles. We investigated the case of a pipe elbow using theoretical analysis and numerical simulations. For the case when the particles were large, that is, of micrometre size, we observed the expected behaviour in which the erosion rate was greater with increasing particle diameter. The same was seen for flow velocity, and higher velocities promoted the erosion process. For small particles, however, the erosion rate increased with decreasing particle size. This was explained by the formation of secondary flows in the elbow that centrifuged the particles towards the walls. For very small particles, the erosion rate decreased again, i.e. the particle distribution towards the wall was insufficient to erode the pipe wall due to the particles low mass.
Описание
Ключевые слова
Цитирование
Kosinska, A. Theoretical analysis of erosion in elbows due to flows with nano- and micro-size particles / Kosinska, A., Kosinski, P., Balakin, B.V. // Powder Technology. - 2020. - 364. - P. 484-493. - 10.1016/j.powtec.2020.02.002
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