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Peristaltic flow of Walter’s B fluid in endoscope

Applied Mathematics and Mechanics(English Edition) 2011年第6期32卷 689-700页

作者： S.NADEEM N.S.AKBAR T.HAYAT A.A.HENDI Department of Mathematics Quaid-i-Azam University Department of Physics Faculty of ScienceKing Saud University

The peristaltic flow of a Walter＇s B fluid in an endoscope is studied. The problem is modeled in a cylindrical coordinate system. The main theme of the present analysis is to study the endoscopic effects on the peristaltic flow of the Waiter＇s B fluid. To the best of the authors＇ knowledge, no investigation has been made so far in the literatures to study the Walter＇s B fluid in an endoscope. Analytical solution. axe obtained using the regular perturbation method by taking 5 as a perturbation parameter. The approximate analytical solution. for the pressure rise and friction forces are evaluated using numerical integration. The effects of emerging parameters of the Waiter＇s B fluid are presented graphically.

关键词： peristaltic flow Walter's B fluid endoscope perturbation solution.

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Series solution.of unsteady peristaltic flow of a Carreau fluid in small intestines

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International Journal of Biomathematics 2014年第5期7卷 41-49页

作者： Arshad Ria S. Nadeem R. Ellahi Noreen Sher Akbar Department of Mathematics and Statistics FBAS HU Islamabad 44000 Pakistan Department of Mathematics University of Sargodha Canal Campus Lahore Pakistan Department of MathematicsQuaid-i-Azam University 45320 Islamabad 44000 Pakistan DBSSJH CEMENational University of Sciences and Technology Islamabad Pakistan

The study of peristaltic flow of a Carreau fluid in a non-uniform tube under the con- sideration of long wavelength is presented. The flow is investigated in a wave frame of reference moving with velocity of the wave e. Numerical integration has been used to obtain the graphical results for pressure rise and frictional forces. The effects of various emerging parameters are investigated through graphs.

关键词： Peristaltic flow Carreau fluid diverging tube perturbation solution.

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Blood flow analysis in tapered stenosed arteries with pseudoplastic characteristics

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International Journal of Biomathematics 2014年第6期7卷 89-106页

作者： Noreen Sher Akbar S. Nadeem National University of Sciences and Technology Islamabad Pakistan Department of MathematicsQuaid-i-Azam University 45320 Islamabad 44000 Pakistan

In this paper, the blood flow through a tapered artery with a stenosis by considering axially non-symmetric but radially symmetric mild stenosis on blood flow characteristics is analyzed, assuming the flow is steady and blood is treated as Williamson fluid. Per- turbation solution. have been evaluated for velocity, resistance impedance, wall shear stress and shearing stress at the stenosis throat. The graphical results of different type of tapered arteries （i.e. converging tapering, diverging tapering, non-tapered artery） have been examined for different parameters of interest.

关键词： Williamson fluid blood flow tapered artery stenosis perturbation solution.

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