Open AccessInvestigation of Non-Newtonian Fluid Behavior and Coefficient of Friction in Water Hammer Phenomena
Author(s) -
Nawal Achak,
Ouafae Rkibi,
Bennasser Bahrar,
Kamal Gueraoui
Publication year - 2021
Publication title -
journal of advanced research in fluid mechanics and thermal sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.247
H-Index - 13
ISSN - 2289-7879
DOI - 10.37934/arfmts.89.1.175184
Subject(s) - mechanics , water hammer , dissipation , newtonian fluid , non newtonian fluid , friction coefficient , hammer , flow (mathematics) , classical mechanics , mathematics , materials science , physics , thermodynamics , metallurgy , composite material
An unstable flow of non-Newtonian fluid, with friction in a pipe is studied, describing the water hammer phenomenon. The equations of the problem are given, then solved by a numerical approach. The non-Newtonian behavior of the fluid, as well as the effect of the coefficient of friction which represents an additional mechanism of energy dissipation are investigated. The 1D and 2D problem is used simultaneously, based on the Runge-kutta method for the descritization in time, Finite differences, Characteristics for the descritization in space. The results of this article show by verifying with experience that these methods used, in addition to being simple, are also effective and give reasonable results.