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Numerical Simulation Of Unsteady Three Dimensional Incompressible Flows In Complex Geometries
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Book Synopsis Numerical Simulation of Unsteady Three Dimensional Incompressible Flows in Complex Geometries by : Hansong Tang
Download or read book Numerical Simulation of Unsteady Three Dimensional Incompressible Flows in Complex Geometries written by Hansong Tang and published by . This book was released on 2001 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Simulations Of Incompressible Flows by : Mohamed M Hafez
Download or read book Numerical Simulations Of Incompressible Flows written by Mohamed M Hafez and published by World Scientific. This book was released on 2003-01-23 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consists of 37 articles dealing with simulation of incompressible flows and applications in many areas. It covers numerical methods and algorithm developments as well as applications in aeronautics and other areas. It represents the state of the art in the field.
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.
Book Synopsis Algorithms for Large-scale Parallel Simulation of Unsteady Incompressible Flows in Three-dimensional Complex Geometries by : Henry M. Tufo
Download or read book Algorithms for Large-scale Parallel Simulation of Unsteady Incompressible Flows in Three-dimensional Complex Geometries written by Henry M. Tufo and published by . This book was released on 1998 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Simulation of 3-D Incompressible Unsteady Viscous Laminar Flows by : Michel Deville
Download or read book Numerical Simulation of 3-D Incompressible Unsteady Viscous Laminar Flows written by Michel Deville and published by . This book was released on 2014-01-15 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Simulation of Turbulent Flows and Noise Generation by : Christophe Brun
Download or read book Numerical Simulation of Turbulent Flows and Noise Generation written by Christophe Brun and published by Springer Science & Business Media. This book was released on 2009-03-07 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Large Eddy Simulation (LES) is a high-fidelity approach to the numerical simulation of turbulent flows. Recent developments have shown LES to be able to predict aerodynamic noise generation and propagation as well as the turbulent flow, by means of either a hybrid or a direct approach. This book is based on the results of two French/German research groups working on LES simulations in complex geometries and noise generation in turbulent flows. The results provide insights into modern prediction approaches for turbulent flows and noise generation mechanisms as well as their use for novel noise reduction concepts.
Book Synopsis Numerical Techniques for Direct and Large-Eddy Simulations by : Xi Jiang
Download or read book Numerical Techniques for Direct and Large-Eddy Simulations written by Xi Jiang and published by CRC Press. This book was released on 2016-04-19 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compared to the traditional modeling of computational fluid dynamics, direct numerical simulation (DNS) and large-eddy simulation (LES) provide a very detailed solution of the flow field by offering enhanced capability in predicting the unsteady features of the flow field. In many cases, DNS can obtain results that are impossible using any other me
Book Synopsis Numerical Simulation of 3D, Complex, Turbulent Flows with Unsteady Coherent Structures by : Liang Ge
Download or read book Numerical Simulation of 3D, Complex, Turbulent Flows with Unsteady Coherent Structures written by Liang Ge and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A new state-of-the-art CFD solver capable of simulating a broad range of complex engineering flows at real-life Reynolds numbers is developed. The method solves the three-dimensional incompressible unsteady Reynolds-averaged Navier-Stokes (URANS) equations closed with statistical turbulence models. Three such models are incorporated in the solver: the standard k - e model with wall functions, the Spalart-Allmaras model and the detached-eddy simulation (DES) model. The numerical solver employs domain decomposition with structured Chimera overset grids to handle complex, multi-connected geometries. The governing equations are discretized with second order accuracy schemes both in space and time. The capabilities and versatility of the numerical method are demonstrated by applying it to simulate two widely different flow problems: a) flow past a geometrical complex array of multiple bridge piers mounted both on a natural river reach and on a flat bed experimental flume; and b) flow in mechanical, bileaflet, prosthetic heart valve with the leaflets fixed in the fully-open position. Overset grid systems with several millions of grid nodes are used and grid-refinement and other numerical dependency studies are carried out to explore the sensitivity of the computed solutions to various numerical parameters. For all simulated cases, large-scale unsteadiness appears naturally as a result of excited mean-flow instabilities and the computed mean flowfields are shown to be in good quantitative agreement with experimental measurements. By analyzing the instantaneous flowfields numerous novel insights into the physics of both flow cases are obtained and discussed extensively. The results of this thesis demonstrate the potential of the new method as a powerful simulation tool for a broad range of cross-disciplinary engineering flow problems and underscore the need for physics-based numerical modeling by integrating CFD with laboratory experimentation.
Book Synopsis Numerical Simulation of Unsteady Three-dimensional Turbulent Structures in Boundary Layer Flows by : Nan-Suey Liu
Download or read book Numerical Simulation of Unsteady Three-dimensional Turbulent Structures in Boundary Layer Flows written by Nan-Suey Liu and published by . This book was released on 1985 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Numerical Simulation of Unsteady Flows and Transition to Turbulence by : O. Pironneau
Download or read book Numerical Simulation of Unsteady Flows and Transition to Turbulence written by O. Pironneau and published by Cambridge University Press. This book was released on 1992-07-31 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: The workshop concentrated on the following turbulence test cases: T1 Boundary layer in an S-shaped duct; T2 Periodic array of cylinders in a channel; T3 Transition in a boundary layer under the influence of free-stream turbulence; T4 & T5: Axisymmetric confined jet flows.
Book Synopsis Frontiers of Computational Fluid Dynamics 2002 by : Robert William MacCormack
Download or read book Frontiers of Computational Fluid Dynamics 2002 written by Robert William MacCormack and published by World Scientific. This book was released on 2002 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: This series of volumes on the OC Frontiers of Computational Fluid DynamicsOCO was introduced to honor contributors who have made a major impact on the field. The first volume was published in 1994 and was dedicated to Prof Antony Jameson; the second was published in 1998 and was dedicated to Prof Earl Murman. The volume is dedicated to Prof Robert MacCormack. The twenty-six chapters in the current volume have been written by leading researchers from academia, government laboratories, and industry. They present up-to-date descriptions of recent developments in techniques for numerical analysis of fluid flow problems, and applications of these techniques to important problems in industry, as well as the classic paper that introduced the OC MacCormack schemeOCO to the world. Contents: The Effect of Viscosity in Hypervelocity Impact Cratering (R W MacCormack); The MacCormack Method OCo Historical Perspective (C M Hung et al.); Numerical Solutions of Cauchy-Riemann Equations for Two and Three Dimensional Flows (M M Hafez & J Houseman); Extension of Efficient Low Dissipation High Order Schemes for 3-D Curvilinear Moving Grids (M Vinokur & H C Yee); Scalable Parallel Implicit Multigrid Solution of Unsteady Incompressible Flows (R Pankajakshan et al.); Lattice Boltzmann Simulation of Incompressible Flows (N Satofuka & M Ishikura); Numerical Simulation of MHD Effects on Hypersonic Flow of a Weakly Ionized Gas in an Inlet (R K Agarwal & P Deb); Development of 3D DRAGON Grid Method for Complex Geometry (M-S Liou & Y Zheng); Advances in Algorithms for Computing Aerodynamic Flows (D W Zingg et al.); Selected CFD Capabilities at DLR (W Kordulla); CFD Applications to Space Transportation Systems (K Fujii); Information Science OCo A New Frontier of CFD (K Oshima & Y Oshima); Integration of CFD into Aerodynamics Education (E M Murman & A Rizzi); and other papers. Readership: Researchers and graduate students in numerical and computational mathematics."
Book Synopsis Numerical Simulation of Three-dimensional Incompressible Flow by a New Formulation by : C. J. Ho
Download or read book Numerical Simulation of Three-dimensional Incompressible Flow by a New Formulation written by C. J. Ho and published by . This book was released on 1996 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A New Numerical Method for the Simulation of Three Dimensional Flow in a Pipe by :
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:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Calculation of Complex Turbulent Flows by : George Tzabiras
Download or read book Calculation of Complex Turbulent Flows written by George Tzabiras and published by Witpress. This book was released on 2000 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of invited chapters focusing on developments in the application of Computational Fluid Dynamics (CFD) to compressible or incompressible flows dominated by turbulence effects. These may be applied to complex geometrical configurations or flow-fields in simpler geometries requiring higher-order turbulence modelling, or suitably modified low-order models, to calculate crucial parameters such as instabilities, transition, separation, accurate description of velocity and scalar fields, and local and total forces.
Book Synopsis Numerical Solution of Three-dimensional Incompressible Unsteady Viscous Flows by : Narayanamoorthy Lakshmi Sankar
Download or read book Numerical Solution of Three-dimensional Incompressible Unsteady Viscous Flows written by Narayanamoorthy Lakshmi Sankar and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Parallel High-order Discontinuous Galerkin Solver for the Unsteady Incompressible Navier-Stokes Equations in Complex Geometries by : Khosro Shahbazi
Download or read book A Parallel High-order Discontinuous Galerkin Solver for the Unsteady Incompressible Navier-Stokes Equations in Complex Geometries written by Khosro Shahbazi and published by . This book was released on 2007 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: We verify the accuracy and stability of the method on several two- and three-dimensional benchmarking problems. On the challenging Orr-Sommerfeld test problem, the equal-order polynomial approximation of the velocity and pressure (Pk - Pk) leads to a stable and accurate solution, while the mixed-order method (Pk - Pk-1) yields a non-physical instability. In simulating vortex shedding past a square cylinder at Re = 100 and in simulating a three-dimensional backward-facing step flow using the equal-order method, excellent agreement with other computational and experimental results are obtained. The developed solver is used to study flow through a two-dimensional bileaflet mechanical heart valve geometry. We conclude that the proposed discontinuous Galerkin method with the Pk - Pk formulation is a suitable scheme for simulations of flows through mechanical heart valve geometries. We develop a parallel method and corresponding code for the numerical solution of the unsteady incompressible Navier-Stokes equations, with application to the direct numerical simulation of transitional and turbulent flows through mechanical heart valves. The solver is based on a simple and efficient scheme, namely a high-order discontinuous Galerkin method on triangular and tetrahedral elements. Spatial discretization of the Stokes operator employed both equal-order (Pk - Pk) and mixed-order (Pk - Pk-1) velocity and pressure approximations. The interior penalty method and local Lax-Friedrichs fluxes are used for the discretizations of the viscous term and the nonlinear term in the divergence form, respectively. A second order approximate algebraic splitting is used to decouple the velocity and pressure calculations leading to an algebraic Helmholtz equation for each component of the velocity and a consistent Poisson equation for the pressure. The consistent Poisson operator is replaced by an equivalent operator, namely that arising from the interior penalty discretization of the standard Poisson operator with appropriate boundary conditions. An explicit lower bound is derived for the penalty parameter of the interior penalty method that ensures the coercivity of the bilinear form. Efficiency aspects of the scheme include knowing an explicit expression for the penalty parameter of the interior penalty method and compact stencil size for the discretizations of the velocity and pressure equations and the nonlinear term.
