Results 241 to 250 of about 550,989 (293)

Paracentral Acute Middle Maculopathy After Sinus Surgery: A Case Report and Literature Review. [PDF]

J Vitreoretin Dis
Barazi MD, Ali M, Sabbagh OB, Abou-Samra A, Ebert J, Eaddy I, Du J.   +6 more
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A purely elastic instability in Dean and Taylor–Dean flow

Physics of Fluids A: Fluid Dynamics, 1992
The linear stability of the viscoelastic flow of an Oldroyd-B fluid between rotating cylinders with an applied, azimuthal pressure gradient is considered. It is found that this Taylor–Dean flow is unstable in certain flow parameter regimes even in the limit of vanishingly small Reynolds number.
Joo, Yong Lak, Shaqfeh, Eric S. G.
openaire   +3 more sources

The Dean Effect: An Aortic Arch Flow Artifact Mimicking Dissection

Radiology: Cardiothoracic Imaging, 2022
The unique hemodynamics of the aortic arch create conditions for potential formation of a flow-related artifact that mimics disease on CT angiographic images. The hemodynamic basis for this artifact can be explained by fluid mechanics incorporating a mathematical principle known as the Dean number. Therefore, in this review, the artifact is referred to
Alan Ropp, Aletta A. Frazier, Bradley Gelfand, Jean Jeudy   +3 more
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Dean flow fractionation of chromosomes

SPIE Proceedings, 2016
Efforts to transfer intact mammalian chromosomes between cells have been attempted for more than 50 years with the consistent result being transfer of sub unit length pieces regardless of method. Inertial microfluidics is a new field that has shown much promise in addressing the fractionation of particles in the 2-20 μm size range (with unknown limits)
Matt Hockin, Himanshu J. Sant, Mario Capecchi, Bruce K. Gale   +3 more
openaire   +1 more source

Simulating turbulent Dean flow in Cartesian coordinates

International Journal for Numerical Methods in Fluids, 2008
AbstractA simplified approach to simulate turbulent flows in curved channels is proposed. A set of governing equations of motion in Cartesian coordinates is derived from the full Navier–Stokes equations in cylindrical coordinates. Terms to first order in the dimensionless curvature parameter are retained, whereas higher‐order terms are neglected.
El Khoury, George K., Andersson, Helge I., Pettersen, Bjørnar   +2 more
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Downstream decay of fully developed Dean flow

Journal of Fluid Mechanics, 2015
Direct numerical simulations were used to investigate the downstream decay of fully developed flow in a $180^{\circ }$ curved pipe that exits into a straight outlet. The flow is studied for a range of Reynolds numbers and pipe-to-curvature radius ratios.
Jesse T. Ault, Kevin K. Chen, Howard A. Stone   +2 more
openaire   +1 more source

Stability of Couette flow and Dean flow in micropolar fluids

International Journal of Engineering Science, 1985
In this article, we have investigated the onset of instability in the flow of the micropolar fluid between two rotating concentric cylinders and the flow in a curved channel, under small gap approximation. The solution of the eigenvalue problems, governing the onset of instability, are obtained by using the shooting method.
Sastry, V. U. K., Das, Tapasi
openaire   +2 more sources