Казанский (Приволжский) федеральный университет, КФУ
КАЗАНСКИЙ
ФЕДЕРАЛЬНЫЙ УНИВЕРСИТЕТ
 
FREE SURFACE FLOW IN A MICROFLUIDIC CORNER AND IN AN UNCONFINED AQUIFER WITH ACCRETION: THE SIGNORINI AND SAINT-VENANT ANALYTICAL TECHNIQUES REVISITED
Форма представленияСтатьи в зарубежных журналах и сборниках
Год публикации2016
Языкрусский
  • Каюмов Ильгиз Рифатович, автор
  • Библиографическое описание на языке оригинала Kacimov, A.R., Maklakov, D.V., Kayumov, I.R. et al. Transp Porous Med (2016). doi:10.1007/s11242-016-0767-y
    Аннотация Steady, laminar, fully developed flows of a Newtonian fluid driven by a constant pressure gradient in (1) a curvilinear constant cross section triangle bounded by two straight no-slip segments and a circular meniscus and (2) a wedge bounded by two rays and an adjacent film bulging near the corner are studied analytically by the theory of holomorphic functions and numerically by finite elements. The analytical solution of the first problem is obtained by reducing the Poisson equation for the longitudinal flow velocity to the Laplace equation, conformal mapping of the corresponding transformed physical domain onto an auxiliary half-plane and solving there the Signorini mixed boundary value problem (BVP). The numerical solution is obtained by meshing the circular sector and solving a system of linear equations ensuing from the Poisson equation. Comparisons are made with known solutions for flows in a rectangular conduit, circular annulus and Philip's circular duct with a no-shear sector.
    Ключевые слова Viscous film, Meniscus, Poisson equation, Signorini formula, Zhukovsky?Chaplygin method, Zunker?s pendular water slug
    Название журнала TRANSPORT POROUS MED
    URL http://link.springer.com/article/10.1007/s11242-016-0767-y
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