Numerical Simulation Of Unsteady Incompressible Flow Past A Circular Cylinder
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Numerical Simulation Of Unsteady Incompressible Flow Past A Circular Cylinder
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Author : Jiunn Fang
language : en
Publisher:
Release Date : 1987
Numerical Simulation Of Unsteady Incompressible Flow Past A Circular Cylinder written by Jiunn Fang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Fluid dynamics categories.
Numerical Simulation Of Unsteady Incompressible Flow Past Two Dimensional Elliptic Cylinders
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Author : Ayan Sengupta
language : en
Publisher:
Release Date : 2003
Numerical Simulation Of Unsteady Incompressible Flow Past Two Dimensional Elliptic Cylinders written by Ayan Sengupta and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
Unsteady algorithms Fully Implicit and Crank Nicholson were developed for body fitted curvilinear coordinate system to study the incompressible flow over two-dimensional ellipses. In addition, explicit cyclic boundary condition was implemented to facilitate analysis of vortex shedding. Unsteady flow over circular cylinders was simulated for different Reynolds numbers and compared with experimental data. Flow over ellipses was simulated to study the effect of aspect ratio on drag coefficient. It was observed that the drag coefficient increased as the aspect ratio increased reaching an asymptotic value as the ellipse approached a flat plate.
Numerical Simulation Of Unsteady Incompressible Flow In A Partially Filled Rotating Cylinder
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Author : Michael J. Nusca
language : en
Publisher:
Release Date : 1988
Numerical Simulation Of Unsteady Incompressible Flow In A Partially Filled Rotating Cylinder written by Michael J. Nusca and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.
The liquid flowfield in a full or partially-filled right circular cylinder in rapid axial rotation is investigated numerically. The governing equations ar the axisymmetric, unsteady, viscous, incompressible Navier-Stokes equations. These equations are written in stream function-vorticity form for a cylindrical coordinate system in a nonrotating reference frame. The governing equations are discretized using second-order finite-differences for time and space on a nonuniform grid employing logarithmic stretching in regions where high flow gradients are anticipated. Time dependent solutions for Reynolds numbers between 1,000 and 100,000 have been obtained using a Gauss-Seidel relaxation procedure. For partially filled cases the free surface is assumed to be cylindrical and located at a constant radius from the axis of spin. Numerical solutions for full cylinders are consistent with previous solutions and experimental data. Numerical solutions for a partially-filled cylinder are consistent with experimental data for a liquid centrifuge except at the free surface. Computations of the roll moment exerted on the cylinder by the contained liquid shows a smaller moment for the partially-filled compared with the full cylinder results. Keywords: Finite difference, Incompressible flow, Liquid filled projectile, Liquid moment, Unsteady flow, Rotating liquids. (MJM).
Numerical Simulation Of Unsteady Incompressible Viscous Flows In Generalized Coordinate Systems
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Author : Moshe Rosenfeld
language : en
Publisher:
Release Date : 1988
Numerical Simulation Of Unsteady Incompressible Viscous Flows In Generalized Coordinate Systems written by Moshe Rosenfeld and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.
Iutam Symposium On Unsteady Separated Flows And Their Control
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Author : Marianna Braza
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-09-29
Iutam Symposium On Unsteady Separated Flows And Their Control written by Marianna Braza and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-09-29 with Science categories.
This Volume is the Proceedings of the IUTAM Symposium on Unsteady Separated Flows and Their Control held in Corfu, Greece, 18–22 June 2007. This was the second IUTAM Symposium on this subject, following the symposium in Toulouse, in April 2002. The Symposium consisted of single plenary sessions with invited lectures, - lected oral presentations, discussions on special topics and posters. The complete set of papers was provided to all participants at the meeting. The thematic sessions of this Symposium are presented in the following: Experimental techniques for the unsteady ow separation Theoretical aspects and analytical approaches of ow separation Instability and transition Compressibility effects related to unsteady separation Statistical and hybrid turbulence modelling for unsteady separated ows Direct and Large-Eddy Simulation of unsteady separated ows Theoretical/industrial aspects of unsteady separated ow control This IUTAM Symposium concerned an important domain of Theoretical and Applied Mechanics nowadays. It focused on the problem of ow separation and of its control. It achieved a uni ed approach regrouping the knowledge provided from theoretical, experimental, numerical simulation and modelling aspects for unsteady separated ows (incompressible and compressible regimes) and included ef cient control devices to achieve attenuation or suppression of separation. The subject - eas covered important themes in the domain of fundamental research as well as in the domain of applications.
Computation Of Unsteady Viscous Incompressible Flow Around An Obliquely Oscillating Circular Cylinder Using A Parallelized Finite Difference Algorithm
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Author : Karl P. Lawrence
language : en
Publisher:
Release Date : 2004
Computation Of Unsteady Viscous Incompressible Flow Around An Obliquely Oscillating Circular Cylinder Using A Parallelized Finite Difference Algorithm written by Karl P. Lawrence and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Boundary layer categories.
Numerical Simulation Of Three Dimensional Unsteady Viscous Flow Past Columnar Ice Crystals
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Author : Wusheng Ji
language : en
Publisher:
Release Date : 1989
Numerical Simulation Of Three Dimensional Unsteady Viscous Flow Past Columnar Ice Crystals written by Wusheng Ji and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.
Study Of Flow Past Elliptic And Circular Cylinders Using Direct Numerical Simulation
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Author : Rajat Mittal
language : en
Publisher:
Release Date : 1995
Study Of Flow Past Elliptic And Circular Cylinders Using Direct Numerical Simulation written by Rajat Mittal and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Fluid dynamics categories.
Flow over elliptic cylinders can be considered prototypical of flow over a range of bluff bodies since the geometry allows one to study the effect of both thickness and angle-of-attack on the flow field. Therefore a careful study of this flow should provide valuable insight into the phenomenon of unsteady separation and the structure of bluff body wakes. With this in mind, a spectral collocation technique has been developed to simulate the three-dimensional incompressible flow over elliptic cylinders and unlike spectral element and spectral multi-domain techniques, here the flow is solved in a single domain. The equations are discretized on a body fitted elliptic cylindrical grid and properties of the metric associated with this coordinate system are used to solve the governing equations in an efficient manner. Other key issues including the inflow and outflow boundary conditions and time-discretization are discussed in detail with the hope that this will facilitate future simulations of simdar flows.
Numerical Study Of A Viscous Fluid Past A Circular Cylinder
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Author : Mitutosi Kawaguti
language : en
Publisher:
Release Date : 1965
Numerical Study Of A Viscous Fluid Past A Circular Cylinder written by Mitutosi Kawaguti and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Cylinders categories.
A systematic numerical study of the unsteady viscous incompressible fluid flow past a circular cylinder is reported. The range of the Reynolds number considered is 1 to 100. The steady state solutions could be obtained at the Reynolds numbers R = 10, 20, 30, 40, 50 as the limit of the unsteady state solutions. The numerical results are compared with those for the steady problem and they are found to be in agreement. Dependency on the Reynolds number and the time of the flow pattern, vorticity distribution, pressure distribution and the drag are shown. (Author).
Spectral Simulation Of Unsteady Compressible Flow Past A Circular Cylinder
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Author : Institute for Computer Applications in Science and Engineering
language : en
Publisher:
Release Date : 1990
Spectral Simulation Of Unsteady Compressible Flow Past A Circular Cylinder written by Institute for Computer Applications in Science and Engineering and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.
