This paper describes a study of the generation of a plughole vortex and its consequences in
a drainpipe during drainage of water from a stationary rectangular tank. The critical and …

This paper presents a numerical analysis of the transition from selective withdrawal to
viscous entrainment. In our model problem, an interface between two immiscible layers of …

The unsteady withdrawal of fluid from a reservoir of finite depth with a free surface through a
line sink is considered. A numerical method is used to investigate the evolution of a free …

Many boundary value problems occur in a natural way while studying fluid flow problems in
a channel. The solutions of two such boundary value problems are obtained and analysed …

Three-dimensional draining flow of a two-fluid system from a circular tank is considered. The
two fluids are inviscid and incompressible, and are separated by a sharp interface. There is …

The time-varying flow in which fluid is withdrawn from or added to a reservoir of infinite or
arbitrary finite depth through a point sink or source of variable strength beneath a free …

The article describes the unsteady motion of viscoelastic fluid for a Maxwell model with
fractional derivatives. The flow is produced by cylinder, considering time dependent …

The steady, axisymmetric flow induced by a point sink (or source) submerged in an
unbounded inviscid fluid is computed. The resulting deformation of the free surface is …

We examine a problem in which a line sink causes a disturbance to an otherwise uniform
flowing stream of infinite depth. We consider the fully non-linear problem with the inclusion …

The steady, axisymmetric flow induced by a point sink (or source) submerged in an inviscid
fluid of infinite depth is computed and the resulting deformation of the free surface is …