Roll Wave Structure in Long Tubes with Compliant Walls

Результат исследования: Научные публикации в периодических изданияхстатья

Аннотация

We consider a flow of a fluid in a long vertical tube with elastic walls and show that, for certain parameters of the flow, small perturbations of the flow at the inlet section of the tube give rise to roll waves. Depending on the properties of the closing relation, either regular or anomalous roll waves are formed. In the latter case, a roll wave is characterized by two strong discontinuities that connect regions of continuous flow. We present the results of numerical simulations of the development of a pulsatile flow mode for convex and nonconvex closing relations that demonstrate the formation of regular and anomalous roll waves. We also construct a two-parameter class of exact periodic solutions and obtain existence diagrams for roll waves.

Язык оригиналаанглийский
Страницы (с-по)196-205
Число страниц10
ЖурналProceedings of the Steklov Institute of Mathematics
Том300
Номер выпуска1
DOI
СостояниеОпубликовано - 1 янв 2018

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