Abstract:
The article presents the results of the numerical simulation of the Maxwell fluid flow in the
system supplying hydrodynamically active polymer in the boundary layer of a streamlined
object. The case of slow flow is considered. In this case, the inertial terms can be neglected,
the velocities, stresses, and stream functions can be written as the decomposition by
Weisenberg number, and we can assume that the Weissenberg number is less than one.
The established features of the behaviour of the Maxwell fluid flow with a longitudinal
velocity gradient and the manifestation of the effects of elastic deformations are crucial
for understanding processes taking place in the system supplying hydrodynamically active
polymer in the boundary layer of a streamlined object. Understanding the nature of
the effects of elastic deformations in the supplying system makes it possible to offer a
hydrodynamic calculation of the modes of polymer solution injection into the boundary
layer without any negative manifestations of the effects of the elastic deformations. The
results of the numerical simulation confirmed the conception on the deformation-stress
state of macromolecules (fluid elements) in polymer solution converging flow, based on the
data previously obtained from experimental decisions concerning the hydrodynamic field
structure in the input area of a slot and other openings.
