Numerical Simulation of Turbulent Flow Over an Airfoil Via Additive Turbulent Decomposition
Author : Yunpeng Yang
Publisher :
Page : 408 pages
File Size : 47,9 MB
Release : 1996
Category :
ISBN :
Numerical Simulation of Turbulent Flows and Noise Generation
Author : Christophe Brun
Publisher : Springer Science & Business Media
Page : 344 pages
File Size : 26,93 MB
Release : 2009-03-07
Category : Technology & Engineering
ISBN : 3540899561
Book Description
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.
Large Eddy Simulation of Turbulent Flow Over an Airfoil Using Unstructured Grids
Author : Kenneth E. Jansen
Publisher :
Page : 20 pages
File Size : 50,31 MB
Release : 1999
Category : Computational fluid dynamics
ISBN :
Book Description
Many flows of aeronautical interest have regions where turbulence has a significant effect. For many of these flows, Reynolds-averaged Navier-Stokes simulation (RANSS) techniques do not give an acceptable description of the flow. In these cases a more detailed simulation of the turbulence is required. One such detailed simulation technique, large-eddy simulation (LES) has matured to the point of application to complex flows. Historically, LES have been carried out with structured grids which suffer from two major difficulties: the extension to higher Reynolds numbers leads to an impractical number of grid points, and most real world flows are rather difficult to represent geometrically with structured grids. Unstructured-grid methods offer a release from both of these constraints. Within this sponsored research significant progress has been made towards the application of the above approach to flows of aeronautical interest.
Advanced Turbulent Flow Computations
Author : Roger Peyret
Publisher : Springer
Page : 320 pages
File Size : 13,15 MB
Release : 2014-05-04
Category : Science
ISBN : 3709125901
Book Description
This book collects the lecture notes concerning the IUTAM School on Advanced Turbulent Flow Computations held at CISM in Udine September 7–11, 1998. The course was intended for scientists, engineers and post-graduate students interested in the application of advanced numerical techniques for simulating turbulent flows. The topic comprises two closely connected main subjects: modelling and computation, mesh pionts necessary to simulate complex turbulent flow.
Compressible Flow Turbulence Simulation and Modeling Via Additive Turbulent Decomposition
Author : J. M. McDonough
Publisher :
Page : 40 pages
File Size : 39,87 MB
Release : 1996
Category : Mathematical models
ISBN :
Book Description
A Numerical Simulation of Flow Over a NACA0025 Airfoil Using Large Eddy Simulation Turbulence Models
Author : Babak Babaee Owlam
Publisher :
Page : 0 pages
File Size : 20,26 MB
Release : 2008
Category :
ISBN :
Book Description
The ability of computational fluid dynamic (CFD) to predict critical flow characteristics has always been questionable. Flow separation over lifting surfaces such as airfoils are one of the critical features which can significantly deteriorate their aerodynamic performances. The purpose of this research is to evaluate the accuracy of two CFD methods in predicting the flow separation over a NACA0025 airfoil at low Reynolds numbers. The first code is an in-house code which is based on a 3D compressible Navier-Stokes solver with preconditioning and self-adaptive upwinding methods. The second code is the commercial FLUENT software. In order to accurately simulate the laminar boundary layer separation, the Large Eddy Simulation (LES) method is used for turbulence modeling of both codes. Results comparison shows that Fluent is not able to capture this feature. In addition the results are also compared with another similar numerical simulation and validated with available experimental data.
Modeling and Simulation of Turbulent Mixing and Reaction
Author : Daniel Livescu
Publisher : Springer Nature
Page : 273 pages
File Size : 21,57 MB
Release : 2020-02-19
Category : Technology & Engineering
ISBN : 9811526435
Book Description
This book highlights recent research advances in the area of turbulent flows from both industry and academia for applications in the area of Aerospace and Mechanical engineering. Contributions include modeling, simulations and experiments meant for researchers, professionals and students in the area.
Numerical Simulation of Turbulent Flow Over Hemispherical Turrets with Application to Aero-optics
Author : Bin Zhang
Publisher :
Page : 65 pages
File Size : 35,16 MB
Release : 2012
Category :
ISBN :
Book Description
Turbulence Structure and Modulation
Author : Alfredo Soldati
Publisher : Springer
Page : 319 pages
File Size : 43,17 MB
Release : 2014-05-04
Category : Technology & Engineering
ISBN : 370912574X
Book Description
Controlling turbulence is an important issue for a number of technological applications. Several methods to modulate turbulence are currently being investigated. This book describes various aspects of turbulence structure and modulation, and explains and discusses the most promising techniques in detail.
Engineering Turbulence Modelling and Experiments 5
Author : W. Rodi
Publisher : Elsevier
Page : 1029 pages
File Size : 48,48 MB
Release : 2002-08-21
Category : Mathematics
ISBN : 008053094X
Book Description
Turbulence is one of the key issues in tackling engineering flow problems. As powerful computers and accurate numerical methods are now available for solving the flow equations, and since engineering applications nearly always involve turbulence effects, the reliability of CFD analysis depends increasingly on the performance of the turbulence models. This series of symposia provides a forum for presenting and discussing new developments in the area of turbulence modelling and measurements, with particular emphasis on engineering-related problems. The papers in this set of proceedings were presented at the 5th International Symposium on Engineering Turbulence Modelling and Measurements in September 2002. They look at a variety of areas, including: Turbulence modelling; Direct and large-eddy simulations; Applications of turbulence models; Experimental studies; Transition; Turbulence control; Aerodynamic flow; Aero-acoustics; Turbomachinery flows; Heat transfer; Combustion systems; Two-phase flows. These papers are preceded by a section containing 6 invited papers covering various aspects of turbulence modelling and simulation as well as their practical application, combustion modelling and particle-image velocimetry.
