FULLY DEVELOPED VISCOUS FLOW THROUGH RECTANGULAR PIPE WITH AN EASILY PENETRABLE ROUGHNESS ON WALLS.

The aim of this paper is to formulate a problem of laminar viscous flow through an endless rectangular pipe with an easily penetrable roughness (EPR) on walls. We solve this problem by utilizing the MATLAB mathematical package. Moreover, we obtain the numeric data on the roughness depth and density. Our research results are tested on some borderline cases that result in the given problems. [ABSTRACT FROM AUTHOR]