Oldroyd B
A note on an unsteady flow of an Oldroyd B fluid
... The velocity fields and the associated tangential tractions corresponding to the flow in- duced by a flat plate that applies a specified stress in an Oldroyd-B fluid are determined by means of Fourier ...
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An existence of trapezoidal waveform of oscillating motion from triangular pressure waveforms: The case of an Oldroyd B model
... B fluid oscillating motions. Results show the existence of trapezoidal waveform of transient velocity distribution as a sum of sine and cosine triangular waveforms. For an oscillating flow driven by a triangular ...
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Unsteady Incompressible Flow of a Generalized Oldroyd B Fluid between Two Oscillating Infinite Parallel Plates in Presence of a Transverse Magnetic Field
... lized Oldroyd-B fluid between two oscillating parallel plates in presence of a transverse magnetic ...ordinary Oldroyd-B fluids are recovered as limiting cases of the flow considered for the ...
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Theoretical study of Oldroyd b visco elastic fluid flow through curved pipes with slip effects in polymer flow processing
... curvature toward inside of the wall. Further analysis shows that an increment in Re, We, and results in strengthening the secondary flows and causes the location of maximum velocity to migrate towards the outside of ...
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RETRACTED ARTICLE: Velocity and shear stress for an Oldroyd-B fluid within two cylinders
... an Oldroyd-B fluid present between two rotationally oscillating cylinders of infinite ...‘ordinary Oldroyd-B fluids’ and for ‘ordinary Maxwell ...
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The Study of Effects of Rotation Modulation on Double Diffusive Convection in Oldroyd-B Liquids
... Zhong et. al. [7] investigated the vortices arising in a rotating Rayleigh-Benard system and found that vortices are formed at higher values of the Rayleigh number. Also, time-dependent heat transport begins for Rayleigh ...
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Unsteady two layered blood flow through a w shape stenosed artery using the generalized oldroyd b fluid model
... Abstract: A t heoretical study of unsteady two-layered blood flow through a stenosed artery is presented in this article. The geometry of rigid stenosed artery is assumed to be w-shaped. The flow regime is assumed to be ...
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Numerical study of chemical reaction effects in magnetohydrodynamic Oldroyd B oblique stagnation flow with a non Fourier heat flux model
... Reactive magnetohydrodynamic (MHD) flows arise in many areas of nuclear reactor transport. Working fluids in such systems may be either Newtonian or non-Newtonian. Motivated by these applications, in the current study, a ...
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Exact solution for motion of an Oldroyd-B fluid over an infinite flat plate that applies an oscillating shear stress to the fluid
... Let us consider an incompressible Oldroyd-B fluid at rest, over an infinite plate. After time t = 0 the plate applies an oscillating shear to the fluid (f sin ωt or f cos ωt, where f and ω are constants). ...
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A Note on Hydromagnetic Flow of an Oldroyd B Fluid near an Infinite Plate Induced by Half Rectified Sine Pulses
... ological fluid dynamics. Ghosh [1] examined the motion of an incompressible viscous fluid in a channel bounded by two coaxial cylinders when the inner cylinder is set in motion by the pulses of longitudinal impulses. ...
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The Oscillating Flows and Heat Transfer of a Generalized Oldroyd-B Fluid in Magnetic Field
... In this paper, we have presented some oscillating flow of a generalized Oldroyd-B fluid. The effect of radiation on the heat transfer is considered. Exact analytic solutions are obtained for the velocity ...
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The Oscillatory Motion of Oldroyd B Fluid by Incorporating Some of the Mechanical Factors
... of Oldroyd-B fluid in a uniform magnetic field through a small circular ...the Oldroyd-B model. The Oldroyd-B model is then reformulated coupled with the momentum equation and ...
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A note on the flow induced by a constantly accelerating edge in an Oldroyd B fluid
... Let us consider an Oldroyd-B fluid, at rest, occupying the space of the first quadrant of a rectangular edge ( −∞ < x < ∞ ; y,z > 0). At time zero, the infinitely extended edge is subject to a ...
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Subcritical Instabilities in Plane Poiseuille Flow of an Oldroyd-B Fluid
... Recently, detailed experiments on visco-elastic channel flow have provided convincing evi- dence for a nonlinear instability scenario which we had argued for based on calculations for visco-elastic Couette flow. ...
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ACCELERATING MHD FLOW OF A GENERALIZED OLDROYD-B FLUID WITH FRACTIONAL DERIVATIVE
... generalized Oldroyd-B fluid due to an infinite accelerating ...the Oldroyd-B ...generalized Oldroyd-B fluids, while θ → 0 and λ → 0 describes the Maxwell fluid and the ...
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New Exact Solutions for an Oldroyd B Fluid in a Porous Medium
... incompressible Oldroyd-B fluid occupying the upper porous half-space of x, y ...The Oldroyd-B fluid is assumed to be electrically conducting under the influence of a uniform magnetic field ...
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Peristaltic motion of a magnetohydrodynamics oldroyd-B fluid in planar channel with heat transfer
... The focus of this study is on the analytical solutions of the system of non- linear partial differential equations resulting from the mathematical modeling of an MHD peristaltic motion of an Oldroyd-B ...
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Finite difference finite element approach for solving fractional Oldroyd B equation
... sented. Numerical results are discussed, and the influence of pertinent flow parameters on the velocity field is delineated. The results presented in this investigation generalize those for Brownian Oldroyd-B ...
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Kolmogorov Flow: Seven Decades of History
... The nonlinear dynamics of viscoelastic k-flow have been examined by Bistag- nino et al. [48], both analytically and numerically. The authors specifically noted that the physical reason for their study was that, even ...
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Thermodynamic analysis of a magnetohydrodyamic oldroyd 8-constant fluid in a vertical channel with heat source and slippage
... the Oldroyd B model and is used to predict the effects of relaxation and retardation ...the Oldroyd model is the Oldroyd 8- constant model—a non-Newtonian fluid representation that has ...
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