Open AccessRHEOLOGY OF POWER LAW FLUID FLOW AROUND A STAGNATION POINT IN POROUS MEDIUM WITH ENERGY DISSIPATION
Author(s) -
Debasish Dey,
Bhagyashree Mahanta
Publication year - 2021
Publication title -
latin american applied research
Language(s) - English
Resource type - Journals
eISSN - 1851-8796
pISSN - 0327-0793
DOI - 10.52292/j.laar.2021.794
Subject(s) - prandtl number , power law fluid , mechanics , stagnation point , partial differential equation , dissipation , shear stress , materials science , shear rate , non newtonian fluid , classical mechanics , rheology , physics , mathematics , thermodynamics , mathematical analysis , heat transfer
An investigation on two-dimensional stagnation point flow past a stretching or shrinking surface in a porous medium with energy dissipation using power law model is carried out in this paper. By applying some similarity transformations, the governing partial differential equations are converted to non-linear ordinary differential equations. Consequently, numerical calculations of these equations are done by using MATLAB built- in bvp4c method. Impact of various parameters such as Prandtl number, permeability parameter and magnetic parameter are depicted graphically on velocity and temperature distributions. Also, the numerical values for velocity gradient and shear stress are shown in tabular form. From the analysis, it is noted that Prandtl number helps in reducing the shear stress, Also, as the power law parameter increases, a decrease in velocity is observed.