Oldroyd-B fluid model
Unsteady two layered blood flow through a w shape stenosed artery using the generalized oldroyd b fluid model
... different fluid models are shown in Fig. 5. It is evident that the Maxwell fluid model predicts the highest values of axial velocity whilst the Newtonian fluid model predicts the least ...
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A Note on Hydromagnetic Flow of an Oldroyd B Fluid near an Infinite Plate Induced by Half Rectified Sine Pulses
... an Oldroyd-B fluid while Ghosh and Mitra [11] constructed solutions of Stokes problem for a linear viscoelastic fluid of Oldroyd-B ...viscoelastic Oldroyd-B ...
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New Exact Solutions for an Oldroyd B Fluid in a Porous Medium
... The behavior of viscoelastic materials in particularly the response of many polymeric liquids are best described by Oldroyd-B fluid model 1. Further, these, fluids are also quite useful in ...
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Numerical study of chemical reaction effects in magnetohydrodynamic Oldroyd B oblique stagnation flow with a non Fourier heat flux model
... The Oldroyd-B fluid model belongs to the “rate type” of model and is a generalization of the upper-convected Maxwell ...original Oldroyd-B model is in fact a ...
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A note on an unsteady flow of an Oldroyd B fluid
... integral-type Oldroyd-B fluid in a straight circular tube and its decay from the steady-state condition when the pressure gradient is ...of Oldroyd-B fluid model is used, ...
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Theoretical study of Oldroyd b visco elastic fluid flow through curved pipes with slip effects in polymer flow processing
... the Oldroyd-B constitutive equation is simulated. The Oldroyd-B model is a suitable choice for viscoelastic materials showing a constant viscosity (Boger Fluids ...
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An existence of trapezoidal waveform of oscillating motion from triangular pressure waveforms: The case of an Oldroyd B model
... of Oldroyd-B flow in a capillary tube at a triangular sine and cosine pressure waveform is ...and fluid material parameters, are primary factors affecting the flow performance of an oscillating flow ...
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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
... the Oldroyd-B fluid is one which stores energy like a linearized elastic solid, its dissipation however being due to two dissipative mechanisms that implies that they arise from a mixture of two ...
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RETRACTED ARTICLE: Velocity and shear stress for an Oldroyd-B fluid within two cylinders
... an Oldroyd-B fluid placed under certain conditions, ...governing model will be an Oldroyd-B fluid, we wish to achieve our goal of finding the velocity and shear stress by using some common ...
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The Oscillating Flows and Heat Transfer of a Generalized Oldroyd-B Fluid in Magnetic Field
... Abstract—This paper presents an analysis for magnetohydrodynamic (MHD) flow of an incompressible generalized Oldroyd-B fluid with fractional derivative. The effect of radiation on the heat transfer ...
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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
... generalized Oldroyd-B fluid induced by a constantly accelerating plate between two side walls perpendicular to the ...grade fluid with fractional derivative ...generalized ...
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ACCELERATING MHD FLOW OF A GENERALIZED OLDROYD-B FLUID WITH FRACTIONAL DERIVATIVE
... known fluid models by replacing the time derivative of an integer order by the so-called Riemann-Liouville fractional calculus ...viscoelastic fluid with a generalized Oldroyd-B ...generalized ...
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Unsteady MHD flow of Non Newtonian fluid in a planar channel
... B model, ...the Oldroyd upper convected derivative. This model can be linearlized by requiring that the elastic responses are sufficiently small from he appropriate natural ...the model ...
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Fahraeus-Lindqvist effect in an Oldroyd 8-constant fluid
... characteristics, and thus one needs a non-Newtonian constitutive relationship between shear stress and rate of deformation to make the analysis of blood ow [5-8]. In the studies [9,10] a generalized ...
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Time-dependent semi-discrete analysis of the viscoelastic fluid flow problem using a variational multiscale stabilised formulation
... co-rotational Oldroyd-B model has been proved in Lions & Masmoudi (2000) using a simplification (without physical justification) which consists in replacing the velocity gradient in the stress ...
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Thermodynamic analysis of a magnetohydrodyamic oldroyd 8-constant fluid in a vertical channel with heat source and slippage
... Oldroyd model proposed by Oldroyd [1]. This model differs from differential models in terms of effectiveness in predicting normal stress and shear thinning/thickening properties and measuring ...
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The Oscillatory Motion of Oldroyd B Fluid by Incorporating Some of the Mechanical Factors
... Newtonian fluid such as ketchup, blood, paints, shampoo, pulps, ho- ney, oil and drilling mud ...single model which represents all these fluids but they haven’t found any success in their ...fluids ...
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A note on the flow induced by a constantly accelerating edge in an Oldroyd B fluid
... above model has become very popular amongst rheologists modeling the response of dilute polymeric ...the model can describe many of the non-Newtonian characteristics exhibited by polymeric materials such as ...
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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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Vol 3, No 8 (2012)
... conducting fluid through a circular cylinder bounded by permeable bed under the influence of exponentially decreasing pressure gradient and porous medium is ...
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