On Stability of One-Dimensional Movement of Viscous Materialстатья
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Дата последнего поиска статьи во внешних источниках: 19 декабря 2020 г.
Аннотация:One-dimensional movement of tensioned viscous material stream is considered. With the help of the laws of mass and momentum conservation it is shown that the stationary flow is characterized by exponential decrease of stream width and corresponding increase of stream velocity. Equations for perturbations of station variables are derived, which depend on the defining parameter. This parameter characterizes the combined influence of viscosity, density, initial velocity and length of the considered interval. For small parameter values dynamic stability of one-dimensional material motion is established.