Results 261 to 270 of about 191,627 (301)

Oscillatory flow of blood in a stenosed artery

Bulletin of Mathematical Biology, 1987
The flow of blood in a cylindrical rigid artery, the wall of which contains a stenosis of small cosine shaped amplitude is considered. The blood is assumed to be a Newtonian fluid with velocity and pressure that have axial symmetry and are independent of the axial coordinate.
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Interaction of spheres in oscillatory fluid flows

Physical Review E, 2007
Rigid spherical particles in oscillating fluid flows form interesting structures as a result of fluid mediated interactions. Here we show that spheres under horizontal vibration align themselves at right angles to the oscillation and sit with a gap between them. The details of this behavior have been investigated through experiments and simulations. We
D, Klotsa, Michael R, Swift, R M, Bowley, P J, King   +3 more
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Oscillatory flow of a fourth‐order fluid

International Journal for Numerical Methods in Fluids, 2008
AbstractThis study deals with the incompressible flow of a fourth‐order fluid over a porous plate oscillating in its own plane. Numerical solution of the nonlinear problem governing the flow is given. The influence of various parameters of interest on the velocity distribution is shown and discussed with the help of several graphs.
Hayat, T., Shahzad, F., Ayub, M.
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Oscillatory Flow in a Cone-and-Plate Bioreactor

Journal of Biomechanical Engineering, 2004
Motivated by biometric applications, we analyze oscillatory flow in a cone-and-plate geometry. The cone is rotated in a simple harmonic way on a stationary plate. Based on assuming that the angle between the cone and plate is small, we describe the flow analytically by a perturbation method in terms of two small parameters, the Womersley number and the
C A, Chung, M R, Tzou, R W, Ho
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Oscillatory stokes flow in two dimensions

Mechanics Research Communications, 1994
Plane oscillatory Stokes flow has been discussed using circular harmonics. The solutions for (i) longitudinal oscillations of a circular cylinder in an unbounded flow, and (ii) oscillational shear flow past a circular cylinder have been obtained. The stream function in (i) can be interpreted as a combination of Stokeslet and potential doublet, and in ...
Avudainayagam, A., Geetha, J.
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Inviscid Flow through Cascades in Oscillatory and Distorted Flow

AIAA Journal, 1971
The present paper deals with the flow through a staggered cascade of airfoils in which unsteady disturbances from the upstream are swept down with the flow, as in the case of unsteady or distorted inlet flow conditions in an axial flow compressor. In the oscillatory case, unsteady normal velocity fluctuations which are carried down with the steady ...
Schorr, B., Reddy, K. C.
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Quantifying the influence of oscillatory flow disturbances on blood flow

Journal of Theoretical Biology, 2017
Pulsatile blood flow is renowned for inducing localised flow disturbances that are characterised by significant oscillations. These flow disturbances are recognised to have a physiologic significance within the cardiovascular system, particularly with respect to their proatherogenic expression on endothelial cells.
Gabriel, Sargon A., Ding, Yan, Feng, Yuqing   +2 more
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Response of a cylinder in oscillatory flow

Journal of Fluids and Structures, 1994
The two-dimensional response of a flexibly mounted rigid cylinder in oscillatory flow is studied in this paper. Both measurements of cylinder response obtained in a U-tube and mathematical modelling of this problem are considered. Trajectories of the cylinder response are obtained experimentally for ranges of Keulegan-Carpenter numbers from 2 to 60 ...
A.W. Lipsett, I.D. Williamson
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Oscillatory flow beneath a free surface

Fluid Dynamics Research, 1998
Summary: We consider the two-dimensional fluid flow induced by a submerged oscillating circular cylinder under a free surface; the depth of the fluid is finite and the amplitude of the movement of the cylinder is assumed to be small compared to its diameter. Thus, the solution may be pursued by perturbation methods.
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Measurements of lift in oscillatory flow

Journal of Fluid Mechanics, 1986
Measurements are reported of the lift on a sphere in oscillatory flow. Two different oscillating-tray rigs were used and measurements were made for a sphere at various distances from both smooth and rough beds. For the rough bed, the roughness consisted of a single close-packed layer of similar spheres glued to the surface of the tray.
G. N. Rosenthal, J. F. A. Sleath
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