A Software Package for the Unsteady Flow Problem of an Elastic Viscous Fluid in a Flat Channel

A program for the numerical investigation of shear flow processes in a viscoelastic medium has been developed in the Python programming language. The main computational module is based on the Crank–Nicolson method. Through a graphical user interface, the user enters the parameters of the problem and obtains the time dependence of the fluid velocity, a three-dimensional surface of the velocity as a function of the pipe coordinate and time, a heat map, an animation and the solution matrix; the results can be exported to external files. The program makes it possible to study several values of the Deborah number simultaneously. It can be run as an .exe file on computers and, via a QR code, on internet-connected phones.

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