Download or read book Numerical Study of Three dimensional Flow Through a Deep Open Channel Including a Wire mesh Segment on One Side Wall written by Chandrima Jana and published by . This book was released on 2011 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this study is to numerically investigate the surface shear stress distribution for a deep open channel of aspect ratio 10, including a wire mesh segment on one side wall. This work is motivated by the need to understand the length-based separation process occurring in a deep open channel in the Bauer-McNett Fiber Classifier (BMC), a length-based fiber separator. The shear stress distribution governs the fiber orientation, which in turn, governs the length-based separation process. The flow through the BMC open channel is turbulent, and the flow field is expected to be characterized by turbulence-driven secondary flows. In order to compute the flow variables, the Reynolds-Averaged Navier-Stokes (RANS) equations have been solved. To close the RANS equations, a second-order closure turbulence model known as the Reynolds stress model is employed. The RANS equations are solved using a well known iterative solution procedure known as the Semi-Implicit Method for Pressure Linked Equations (SIMPLE) algorithm. The commercial CFD solver ANSYS FLUENT 13.1 is capable of solving the RANS equations using the Reynolds stress model to close the system of equations. It is also equipped with the SIMPLE algorithm, and hence, is chosen to study the flow in the BMC open channel. For any numerical study, the numerical solution procedure must be verified. Due to the similarity in its physical configuration to the open channel in the BMC apparatus, the canonical problem of fully developed turbulent flow in an open channel of aspect ratio unity is chosen as the verification case. Simulation of the square open channel case enables the verification of the computational methodology before it is applied to the present problem. Next, the flow in the BMC open channel is studied considering the vertical side boundaries as solid walls. The flow in the BMC open channel is characterized by the presence of multiple secondary velocities. The secondary flows are weaker than the primary flow. The secondary flows near the free surface are responsible for the increase in the shear stress on the side wall of the open channel. The resultant shear stress vectors in the open channel are found to be oriented in the primary flow direction. Finally, the flow in the BMC open channel considering a wire mesh on a segment of the side wall is studied. The wire mesh is represented by a 3x3 aperture array. The size of the apertures and the wire diameter corresponds to mesh 16. The shear stress distribution on the apertures is significantly lower than that on the solid wires. Also, the shear stress vectors of the fluid occupying the apertures indicate that the shear stress on the fluid is oriented at an angle to the plane of the apertures. The fibers in the flow are expected to align with the shear stress. Since the resulting shear stress vectors on the fluid occupying the apertures are oriented at an angle to the plane of the apertures, it suggests that fibers greater than the opening size of the apertures may escape through them.
Download or read book Comparison of Two dimensional and Three dimensional Numerical Model Results for Subcritical Flow in an Open Channel Bend written by Trinia Monique Dzurny and published by . This book was released on 2001 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Study of Three Dimensional Incompressible Flow and Heat Transfer Over a Stationary and Moving and Rotating Sphere in a Pipe written by Nader Shahcheraghi and published by . This book was released on 1996 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1988 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Study of Three dimensional Flow Separation for a 6 1 Ellipsoid written by C.-Y. Tsai and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Study of Three dimensional Flow Using Fast Parallel Particle Algorithms written by Gavin J. Pringle and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A New Numerical Method for the Simulation of Three Dimensional Flow in a Pipe written by and published by . This book was released on 1982 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical study of a control method computing a three dimensional flow from the observed surface pressure written by Aziz Belmiloudi and published by . This book was released on 2000 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Study of a Three Dimensional Swirling Flow in a Cylinder written by Yong Pan and published by . This book was released on 1992 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Numerical Study of Three dimensional Unsteady Flows Past a Circular Cylinder written by Jianfeng Zhang and published by . This book was released on 1995 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Three Dimensional Boundary Layers in Internal Flows written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-24 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: A numerical study of the effects of viscous-inviscid interactions in three-dimensional duct flows is presented. In particular interacting flows for which the oncoming flow is not fully-developed were considered. In this case there is a thin boundary layer still present upstream of the surface distortion, as opposed to the fully-developed pipe flow situation wherein the flow is viscous across the cross section. Bodonyi, R. J. Unspecified Center NASA-CR-181336, NAS 1.26:181336 NAG3-528
Download or read book Numerical Simulations of Flow in a Three dimensional Cavity channel Geometry written by and published by . This book was released on 1993 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The computational fluid dynamics code FIDAP (Fluid Dynamics International) is used to perform simulations of the steady laminar flow of an incompressible fluid in a three-dimensional rectangular cavity. Although most previous studies have considered a ''lid- driven'' cavity, where a uniform horizontal velocity is imposed on the cavity lid, the flow in the channel above the cavity is explicitly included in the computational domain in these simulations. Simulations are performed for various Reynolds numbers in the range 0 (less-than or equal to) Re (less-than or equal to) 1000 and are compared to corresponding two-dimensional results. The three-dimensional flow are seen to exhibit a topological complexity not present in the two-dimensional results, including a change in topology around Re (almost equal to) 35.
Download or read book A Numerical Study of Three dimensional Separated Flow Past a Hemisphere Cylinder written by Susan X. Ying and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Three dimensional Numerical Modeling of Compound Open Channel Flow written by Sourima Ghosh and published by . This book was released on 2004 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Study of Three dimensional Laminar and Turbulent Separated Flows written by Dockjong Ki and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computation and Visualization of Three dimensional Vortical and Turbulent Flows written by Rainer Friedrich and published by . This book was released on 1998 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Study of Some Three dimensional Laminar Free convective Flows written by P. H. Oosthuizen and published by . This book was released on 1976 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
