A comparative analysis of flow features of Newtonian and power law material: A New configuration | Zendy

Rashid Mahmood | Zendy; S. Bilal | Zendy; Afraz Hussain Majeed | Zendy; Ilyas Khan | Zendy; ElSayed M. Sherif | Zendy

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A comparative analysis of flow features of Newtonian and power law material: A New configuration

Author(s) -

Rashid Mahmood,

S. Bilal,

Afraz Hussain Majeed,

Ilyas Khan,

ElSayed M. Sherif

Publication year - 2019

Publication title -

journal of materials research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.832

H-Index - 44

eISSN - 2214-0697

pISSN - 2238-7854

DOI - 10.1016/j.jmrt.2019.12.030

Subject(s) - newtonian fluid , mechanics , finite element method , non newtonian fluid , shear thinning , power law , power law fluid , constitutive equation , flow (mathematics) , viscosity , shear rate , computation , generalized newtonian fluid , open channel flow , materials science , law , computer science , mathematics , physics , thermodynamics , algorithm , statistics , composite material , political science

In recent years, material analysis of fluids has generated prodigious interest of researchers due to their effective role in interdisciplinary sciences. In view of its importance, the present communication is devoted to analyze the flow of power law fluid representing the features of shear thinning, shear thickening and Newtonian materials. Constitutive equations expressed in the form of tensorial representations depicting power law relation between viscosity and shear rate. The whole mathematical model is solved computationally via of finite element method by using stableP 2 − P 1finite element pair. A highly refined hybrid mesh is obliged for the accurate computation of results. Material properties of power law fluid are disclosed in physical configuration renowned as channel driven cavity combining various benchmark problems like cavity flow, forward and backward facing steps and channel flow. Impact of material parameters on pertinent profiles is disclosed through graphs. Verification of computed results is done by comparing the velocity, viscosity, pressure fields for power law fluid with the Newtonian case.

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