Effect of non-Newtonian fluid flow through a permeable non-uniform tube having multiple stenoses

2020 ◽  
Author(s):  
K. Maruthi Prasad ◽  
Prabhaker Reddy Yasa
Keyword(s):  
Fluid Flow ◽  
Newtonian Fluid ◽  
Flow Through ◽  
Uniform Tube

A Non-Newtonian Fluid Flow Model for the Slip Condition on Blood Flow through a Stenosed Artery using Power-law Fluid

2018 ◽  
Vol 9 (7) ◽  
pp. 871-879
Author(s):  
Rajesh Shrivastava ◽  
R. S. Chandel ◽  
Ajay Kumar ◽  
Keerty Shrivastava and Sanjeet Kumar
Keyword(s):  
Blood Flow ◽  
Fluid Flow ◽  
Newtonian Fluid ◽  
Power Law ◽  
Flow Model ◽  
Slip Condition ◽  
Power Law Fluid ◽  
Stenosed Artery ◽  
Flow Through

Pore-Scale Modeling of Non-Newtonian Fluid Flow Through Micro-CT Images of Rocks

2018 ◽  
pp. 363-375
Author(s):  
Moussa Tembely ◽  
Ali M. AlSumaiti ◽  
Khurshed Rahimov ◽  
Mohamed S. Jouini
Keyword(s):  
Fluid Flow ◽  
Newtonian Fluid ◽  
Ct Images ◽  
Micro Ct ◽  
Pore Scale ◽  
Scale Modeling ◽  
Pore Scale Modeling ◽  
Flow Through

An Analytical Solution of Micropolar-Newtonian Fluid Flow Through Annular Porous Regions

2020 ◽  
Vol 43 (5) ◽  
pp. 457-462
Author(s):  
Pramod Kumar Yadav ◽  
Jaikanth Yadav Puchakatla ◽  
Sneha Jaiswal
Keyword(s):  
Fluid Flow ◽  
Analytical Solution ◽  
Newtonian Fluid ◽  
Flow Through

scholarly journals Finite Element Least Square Technique for Newtonian Fluid Flow through a Semicircular Cylinder of Recirculating Region via COMSOL Multiphysics

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Ilyas Khan ◽  
Abid A. Memon ◽  
M. Asif Memon ◽  
Kaleemullah Bhatti ◽  
Gul M. Shaikh ◽  
...  
Keyword(s):  
Reynolds Number ◽  
Fluid Flow ◽  
Newtonian Fluid ◽  
Rectangular Channel ◽  
Numerical Procedure ◽  
Least Square ◽  
Comsol Multiphysics ◽  
Velocity Magnitude ◽  
Increase Reynolds Number ◽  
Flow Through

This article aims to study Newtonian fluid flow modeling and simulation through a rectangular channel embedded in a semicircular cylinder with the range of Reynolds number from 100 to 1500. The fluid is considered as laminar and Newtonian, and the problem is time independent. A numerical procedure of finite element’s least Square technique is implemented through COMSOL multiphysics 5.4. The problem is validated through asymptotic solution governed through the screen boundary condition. The vortex length of the recirculating region formed at the back of the cylinder and orientation of velocity field and pressure will be discussed by three horizontal and four vertical lines along the recirculating region in terms of Reynolds number. It was found that the two vortices of unequal size have appeared and the lengths of these vortices are increased with the increase Reynolds number. Also, the empirical equations through the linear regression procedure were determined for those vortices. The orientation of the velocity magnitude as well as pressure along the lines passing through the center of upper and lower vortices are the same.

scholarly journals Computational fluid simulation of non-Newtonian two-phase fluid flow through a channel with a cavity

2020 ◽  
Vol 24 (2 Part B) ◽  
pp. 1045-1054 ◽  
Author(s):  
Mehdi Ahmadi ◽  
Farsani Khosravi
Keyword(s):  
Reynolds Number ◽  
Fluid Flow ◽  
Newtonian Fluid ◽  
Volume Fraction ◽  
Staggered Grid ◽  
Mixed Solution ◽  
Two Phase ◽  
Flow Through ◽  
Velocity Pressure ◽  
Phase Fluid

In this paper, the numerical solution of non-Newtonian two-phase fluid-flow through a channel with a cavity was studied. Carreau-Yasuda non-Newtonian model which represents well the dependence of stress on shear rate was used and the effect of n index of the model and the effect of input Reynolds on the attribution of flow were considered. Governing equations were discretized using the finite volume method on staggered grid and the form of allocating flow parameters on staggered grid is based on marker and cell method. The QUICK scheme is employed for the convection terms in the momentum equations, also the convection term is discretized by using the hybrid upwind-central scheme. In order to increase the accuracy of making discrete, second order Van Leer accuracy method was used. For mixed solution of velocity-pressure field SIMPLEC algorithm was used and for pressure correction equation iteratively line-by-line TDMA solution procedure and the strongly implicit procedure was used. As the results show, by increasing Reynolds number, the time of sweeping the non-Newtonian fluid inside the cavity decreases, the velocity of Newtonian fluid increases and the pressure decreases. In the second section, by increasing n index, the velocity increases and the volume fraction of non-Newtonian fluid after cavity increases and by increasing velocity, the pressure decreases. Also changes in the velocity, pressure and volume fraction of fluids inside the channel and cavity are more sensible to changing the Reynolds number instead of changing n index.

scholarly journals Modeling and Simulation of Newtonian Fluid Flow through Two-Dimensional Backward-Facing Step Channel with Finite Element�s Technique

2019 ◽  
Vol 12 (32) ◽  
pp. 1-6
Author(s):  
Abid Ali Memon ◽  
Hisam-uddin Shaikh ◽  
Baqir Ali Shah ◽  
Muhammad Afzal Soomro ◽  
Abdul Ghafoor Shaikh ◽  
...  
Keyword(s):  
Finite Element ◽  
Fluid Flow ◽  
Modeling And Simulation ◽  
Newtonian Fluid ◽  
Two Dimensional ◽  
Backward Facing Step ◽  
Flow Through
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