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Three Dimensional Physiological Flow Simulation On Multi Box Computational Domains
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Book Synopsis Three-dimensional Physiological Flow Simulation on Multi-box Computational Domains by :
Download or read book Three-dimensional Physiological Flow Simulation on Multi-box Computational Domains written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The fluid flow phenomena in biological systems are typically complex. The complexity is originated from, for example, non-Newtonian behavior of body fluids, complicated geometry, as well as the interaction of muscle and fluid. With the advent of modern computational technology, both in hardware and software, gradually these problems can be resolved. The present research illustrates two such examples. Grid generation is a branch of applied mathematics that is essential for conducting numerical simulation of fluid flow. In this research, a new grid generation technique is developed and implemented in a flow solver. This technique enables one to perform grid generation for complex geometry using only a single computational zone. Fluid flow can then be analyzed without iteration between zones. The scheme is based on the composite transformation of an algebraic mapping and a mapping governed by the Laplace equation. The governing equations for the grid generation are derived first and then solved numerically. The scheme used for solving the grid generating equations is an extension of the traditional three-dimensional Douglass-Gunn scheme. Areas of extension include the inclusion of mixed derivative terms as well as first-order derivative terms. A unique feature of the proposed grid generation scheme is the concept of multi-box computational domains. In this scheme, the physical domain is mapped onto a geometry composed of many boxes in the computational space, rather than a single box as the traditional method does. The numerical solution routine is adjusted accordingly to accommodate this new feature. Grids were generated for two model geometries using the proposed grid generation software. The graft model features one inflow conduit and two outflow conduits, while the left atrium (LA) model has four inflow conduits and one outflow conduit. Flow simulation was performed using the research code INS3D, which employs the method of artificial compressibility. This method transforms the Navier-Stokes equations into a hyperbolic-parabolic set by adding to them pseudo-pressure gradient terms. The scheme is then marched along the pseudo-time axis, until the velocity field becomes divergence-free. For the flow simulation in side the graft, the effect of Reynolds number and flow-division ratio is examined ... In summary, the present research demonstrates applications of computational fluid dynamics technique in the analysis of flow in biological system. A new grid generation technique is realized, and proved to be very useful in simulating these flows. Flow simulation results provide insights into the system and may be of use for clinic reference.
Book Synopsis Computation of Three-Dimensional Complex Flows by : Michel Deville
Download or read book Computation of Three-Dimensional Complex Flows written by Michel Deville and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Der Sammelband enthält Beiträge einer Tagung über die Simulation von dreidimensionalen Flüssigkeiten. Sie geben einen Überblick über den Stand des Wissens auf dem Gebiet der numerischen Simulation der Turbulenz, angewandt auf eine weite Spanne von Problemen wie Aerodynamik, Nicht-Newtonsche Flüssigkeiten, Konvektion.This volume contains the material presented at the IMACS-COST Conference on CFD, Three-Dimensional Complex Flows, held in Lausanne (Switzerland), September 13 - 15, 1995. It gives an overview of the current state of numerical simulation and turbulence modelling applied to a wide range of fluid flow problems such as an example aerodynamics, non-Newtonian flows, transition, thermal convection.
Author :Ernst Heinrich Hirschel Publisher :Springer Science & Business Media ISBN 13 :9783540441304 Total Pages :306 pages Book Rating :4.4/5 (413 download)
Book Synopsis Numerical Flow Simulation III by : Ernst Heinrich Hirschel
Download or read book Numerical Flow Simulation III written by Ernst Heinrich Hirschel and published by Springer Science & Business Media. This book was released on 2003 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains eighteen reports on work, which has been conducted since 2000 in the Collaborative Research Programme "Numerical Flow Simulation" of the Centre National de la Recherche Scientifique (CNRS) and the Deutsche Forschungsgemeinschaft (DFG). French and German engineers and mathematicians present their joint research on the topics: "Development of Solution Techniques", "Crystal Growth and Melts", "Flows of Reacting Gases, Sound Generation" and "Turbulent Flows". In the background of their work is still the strong growth in the performance of super-computer architectures, which, together with large advances in algorithms, is opening vast new application areas of numerical flow simulation in research and industrial work. Results of this programme from the period 1996 to 1998 have been presented in NNFM 66 (1998), and NNFM75 (2001).
Book Synopsis Simulation of Complex Three-dimensional Flows by : George S. Diewert
Download or read book Simulation of Complex Three-dimensional Flows written by George S. Diewert and published by . This book was released on 1985 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computational Strategies for Three-dimensional Flow Simulations on Distributed Computer Systems by : R. A. Weed
Download or read book Computational Strategies for Three-dimensional Flow Simulations on Distributed Computer Systems written by R. A. Weed and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722973872 Total Pages :190 pages Book Rating :4.9/5 (738 download)
Book Synopsis Computational Strategies for Three-Dimensional Flow Simulations on Distributed Computer Systems by : National Aeronautics and Space Administration (NASA)
Download or read book Computational Strategies for Three-Dimensional Flow Simulations on Distributed Computer Systems written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-17 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research effort is directed towards an examination of issues involved in porting large computational fluid dynamics codes in use within the industry to a distributed computing environment. This effort addresses strategies for implementing the distributed computing in a device independent fashion and load balancing. A flow solver called TEAM presently in use at Lockheed Aeronautical Systems Company was acquired to start this effort. The following tasks were completed: (1) The TEAM code was ported to a number of distributed computing platforms including a cluster of HP workstations located in the School of Aerospace Engineering at Georgia Tech; a cluster of DEC Alpha Workstations in the Graphics visualization lab located at Georgia Tech; a cluster of SGI workstations located at NASA Ames Research Center; and an IBM SP-2 system located at NASA ARC. (2) A number of communication strategies were implemented. Specifically, the manager-worker strategy and the worker-worker strategy were tested. (3) A variety of load balancing strategies were investigated. Specifically, the static load balancing, task queue balancing and the Crutchfield algorithm were coded and evaluated. (4) The classical explicit Runge-Kutta scheme in the TEAM solver was replaced with an LU implicit scheme. And (5) the implicit TEAM-PVM solver was extensively validated through studies of unsteady transonic flow over an F-5 wing, undergoing combined bending and torsional motion. These investigations are documented in extensive detail in the dissertation, 'Computational Strategies for Three-Dimensional Flow Simulations on Distributed Computing Systems', enclosed as an appendix. Sankar, Lakshmi N. and Weed, Richard A. Unspecified Center APPLICATIONS PROGRAMS (COMPUTERS); BALANCING; CODING; COMPUTATIONAL FLUID DYNAMICS; DISTRIBUTED PROCESSING; THREE DIMENSIONAL FLOW; ALGORITHMS; FLOW EQUATIONS; MAN MACHINE SYSTEMS; RUNGE-KUTTA METHOD; STATIC LOADS; TRANSONIC FLOW; UNSTEADY FLOW...
Book Synopsis Computational Strategies for Three-dimensional Flow Simulations on Distributed Computing Systems by : Richard Allen Weed
Download or read book Computational Strategies for Three-dimensional Flow Simulations on Distributed Computing Systems written by Richard Allen Weed and published by . This book was released on 1995 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2004 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Three-dimensional computational modeling of curved channel flow by : Kyung-Seop Sin
Download or read book Three-dimensional computational modeling of curved channel flow written by Kyung-Seop Sin and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Three-dimensional Computational Fluid Dynamics Model for Flow Through Porous Media by : Chris Kiser
Download or read book A Three-dimensional Computational Fluid Dynamics Model for Flow Through Porous Media written by Chris Kiser and published by . This book was released on 2011 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This thesis covers the development of a model for fluid flow which incorporates computational fluid dynamics simulations using three-dimensional planar porous media networks. Porous media are introduced along with applications and the need for computational models is discussed. Previous experiments and models are presented as well as features of the current model. This model constructs three-dimensional planar networks from cylindrical pipes and elbows of varying length, diameter, and angle. Simulations are carried out using a finite volume based computational fluid dynamics software. A methodology is provided to discuss the source code of the executable created to automate the modeling process. This process begins with the network creation from an existing code, which generates sets of random pore networks called 'realizations' and ends with linear and polynomial regressions used to provide curve fits for Darcy's law and Forchheimer's equation. Findings of these parameters are presented for varying porosity values of Berea sandstone simulated with single phase liquid water. Results show that the model follows Forchheimer's equation for certain porosities and follows experimental results. Finally, remarks on future work are given and a closing summary is presented."--Abstract.
Book Synopsis Computational Science - ICCS 2007 by : Yong Shi
Download or read book Computational Science - ICCS 2007 written by Yong Shi and published by Springer. This book was released on 2007-07-13 with total page 1310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part of a four-volume set, this book constitutes the refereed proceedings of the 7th International Conference on Computational Science, ICCS 2007, held in Beijing, China in May 2007. The papers cover a large volume of topics in computational science and related areas, from multiscale physics to wireless networks, and from graph theory to tools for program development.
Book Synopsis Three-dimensional Computational Fluid Dynamics Simulations of Complex Multiphase Flows with Surfactants by : Cristian Constante Amores
Download or read book Three-dimensional Computational Fluid Dynamics Simulations of Complex Multiphase Flows with Surfactants written by Cristian Constante Amores and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computational Simulation of Separated Flow in a Three-dimensional Diffuser Using V2-f and Zeta-f Models by : Jason Allen Ryon
Download or read book Computational Simulation of Separated Flow in a Three-dimensional Diffuser Using V2-f and Zeta-f Models written by Jason Allen Ryon and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Three-dimensional Flow Simulation in Estauries by : Jan J. Leendertse
Download or read book Three-dimensional Flow Simulation in Estauries written by Jan J. Leendertse and published by . This book was released on 1975 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computational Study of Three-dimensional Flow Around a Vehicle-like Body by : Kazuhiro Tsuboi
Download or read book Computational Study of Three-dimensional Flow Around a Vehicle-like Body written by Kazuhiro Tsuboi and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Computational Strategies for Three-Dimensional Flow Simulations on Distributed Computer, Lakshmi N, Sankar Et Al, Georgia Inst. of Tech., 1 Aug., 1995 by :
Download or read book Computational Strategies for Three-Dimensional Flow Simulations on Distributed Computer, Lakshmi N, Sankar Et Al, Georgia Inst. of Tech., 1 Aug., 1995 written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Far-field Computational Boundary Conditions for Three-dimensional External Flow Problems by : A. Verhoff
Download or read book Far-field Computational Boundary Conditions for Three-dimensional External Flow Problems written by A. Verhoff and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
