Numerical Simulation Of High Speed Turbulent Reacting Flows
DOWNLOAD
FREE 30 Days
Download Numerical Simulation Of High Speed Turbulent Reacting Flows PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Numerical Simulation Of High Speed Turbulent Reacting Flows book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Numerical Simulation Of High Speed Turbulent Reacting Flows
DOWNLOAD
FREE 30 Days
Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-06-27
Numerical Simulation Of High Speed Turbulent Reacting Flows written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-27 with categories.
The objectives of this research are: (1) to develop and implement a new methodology for large eddy simulation of (LES) of high-speed reacting turbulent flows. (2) To develop algebraic turbulence closures for statistical description of chemically reacting turbulent flows. We have just completed the third year of Phase III of this research. This is the Final Report of our activities on this research sponsored by the NASA LaRC. Givi, P. and Taulbee, D. B. and Madnia, C. K. and Jaberi, F. A. and Colucci, P. J. and Gicquel, L. Y. M. and Adumitroaie, V. and James, S. Langley Research Center NAG1-1122
A Novel Strategy For Numerical Simulation Of High Speed Turbulent Reacting Flows
DOWNLOAD
FREE 30 Days
Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-06-20
A Novel Strategy For Numerical Simulation Of High Speed Turbulent Reacting Flows written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-20 with categories.
The objective of this research is to improve and implement the filtered mass density function (FDF) methodology for large eddy simulation (LES) of high-speed reacting turbulent flows. We have just completed Year 1 of this research. This is the Final Report on our activities during the period: January 1, 2003 to December 31, 2003. 2002. In the efforts during the past year, LES is conducted of the Sandia Flame D, which is a turbulent piloted nonpremixed methane jet flame. The subgrid scale (SGS) closure is based on the scalar filtered mass density function (SFMDF) methodology. The SFMDF is basically the mass weighted probability density function (PDF) of the SGS scalar quantities. For this flame (which exhibits little local extinction), a simple flamelet model is used to relate the instantaneous composition to the mixture fraction. The modelled SFMDF transport equation is solved by a hybrid finite-difference/Monte Carlo scheme. Sheikhi, M. R. H. and Drozda, T. G. and Givi, P. Langley Research Center
Large Eddy Simulation And Direct Numerical Simulation Of High Speed Turbulent Reacting Flows
DOWNLOAD
FREE 30 Days
Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-25
Large Eddy Simulation And Direct Numerical Simulation Of High Speed Turbulent Reacting Flows written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-25 with categories.
The objective of this research is to make use of Large Eddy Simulation (LES) and Direct Numerical Simulation (DNS) for the computational analyses of high speed reacting flows. Our efforts in the first phase of this research conducted within the past three years have been directed in several issues pertaining to intricate physics of turbulent reacting flows. In our previous 5 semi-annual reports submitted to NASA LaRC, as well as several technical papers in archival journals, the results of our investigations have been fully described. In this progress report which is different in format as compared to our previous documents, we focus only on the issue of LES. The reason for doing so is that LES is the primary issue of interest to our Technical Monitor and that our other findings were needed to support the activities conducted under this prime issue. The outcomes of our related investigations, nevertheless, are included in the appendices accompanying this report. The relevance of the materials in these appendices are, therefore, discussed only briefly within the body of the report. Here, results are presented of a priori and a posterior analyses for validity assessments of assumed Probability Density Function (PDF) methods as potential subgrid scale (SGS) closures for LES of turbulent reacting flows. Simple non-premixed reacting systems involving an isothermal reaction of the type A + B yields Products under both chemical equilibrium and non-equilibrium conditions are considered. A priori analyses are conducted of a homogeneous box flow, and a spatially developing planar mixing layer to investigate the performance of the Pearson Family of PDF's as SGS models. A posteriori analyses are conducted of the mixing layer using a hybrid one-equation Smagorinsky/PDF SGS closure. The Smagorinsky closure augmented by the solution of the subgrid turbulent kinetic energy (TKE) equation is employed to account for hydrodynamic fluctuations, and the PDF is employed for modeling the ...
Les Dns And Rans For The Analysis Of High Speed Turbulent Reacting Flows
DOWNLOAD
FREE 30 Days
Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-18
Les Dns And Rans For The Analysis Of High Speed Turbulent Reacting Flows written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-18 with categories.
The purpose of this research is to continue our efforts in advancing the state of knowledge in large eddy simulation (LES), direct numerical simulation (DNS), and Reynolds averaged Navier Stokes (RANS) methods for the computational analysis of high-speed reacting turbulent flows. In the second phase of this work, covering the period 1 Sep. 1993 - 1 Sep. 1994, we have focused our efforts on two research problems: (1) developments of 'algebraic' moment closures for statistical descriptions of nonpremixed reacting systems, and (2) assessments of the Dirichlet frequency in presumed scalar probability density function (PDF) methods in stochastic description of turbulent reacting flows. This report provides a complete description of our efforts during this past year as supported by the NASA Langley Research Center under Grant NAG1-1122. Givi, Peyman and Taulbee, Dale B. and Adumitroaie, Virgil and Sabini, George J. and Shieh, Geoffrey S. Unspecified Center COMPUTATIONAL FLUID DYNAMICS; PROBABILITY DENSITY FUNCTIONS; REACTING FLOW; STOCHASTIC PROCESSES; TURBULENT FLOW; DIRICHLET PROBLEM; HIGH SPEED; MIXING LAYERS (FLUIDS); NAVIER-STOKES EQUATION; VORTICES...
Large Eddy Simulations And Direct Numerical Simulations Of High Speed Turbulent Reacting Flows
DOWNLOAD
FREE 30 Days
Author : National Aeronautics and Space Adm Nasa
language : en
Publisher:
Release Date : 2018-10-22
Large Eddy Simulations And Direct Numerical Simulations Of High Speed Turbulent Reacting Flows written by National Aeronautics and Space Adm Nasa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-22 with categories.
The main objective is to extend the boundaries within which large eddy simulations (LES) and direct numerical simulations (DNS) can be applied in computational analyses of high speed reacting flows. In the efforts related to LES, we were concerned with developing reliable subgrid closures for modeling of the fluctuation correlations of scalar quantities in reacting turbulent flows. In the work on DNS, we focused our attention to further investigation of the effects of exothermicity in compressible turbulent flows. In our previous work, in the first year of this research, we have considered only 'simple' flows. Currently, we are in the process of extending our analyses for the purpose of modeling more practical flows of current interest at LaRC. A summary of our accomplishments during the third six months of the research is presented. Givi, P. and Madnia, C. K. and Steinberger, C. J. and Frankel, S. H. and Vidoni, T. J. Unspecified Center NAG1-1122...
Direct Numerical Simulation For Turbulent Reacting Flows
DOWNLOAD
FREE 30 Days
Author : Thierry Baritaud
language : en
Publisher: Editions TECHNIP
Release Date : 1996
Direct Numerical Simulation For Turbulent Reacting Flows written by Thierry Baritaud and has been published by Editions TECHNIP this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Science categories.
Contents: Description of accurate boundary conditions for the simulation of reactive flows. Parallel direct numerical simulation of turbulent reactive flow. Flame-wall interaction and heat flux modelling in turbulent channel flow. A numerical study of laminar flame wall interaction with detailed chemistry: wall temperature effects. Modeling and simulation of turbulent flame kernel evolution. Experimental and theoretical analysis of flame surface density modelling for premixed turbulent combustion. Gradient and counter-gradient transport in turbulent premixed flames. Direct numerical simulation of turbulent flames with complex chemical kinetics. Effects of curvature and unsteadiness in diffusion flames. Implications for turbulent diffusion combustion. Numerical simulations of autoignition in turbulent mixing flows. Stabilization processes of diffusion flames. References.
Direct And Large Eddy Simulation Ii
DOWNLOAD
FREE 30 Days
Author : Jean-Pierre Chollet
language : en
Publisher: Springer Science & Business Media
Release Date : 1997
Direct And Large Eddy Simulation Ii written by Jean-Pierre Chollet 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 1997 with Mathematics categories.
Reports recent developments in the direct numerical simulation and large-eddy simulation of turbulence from Europe and Japan. The 40 papers cover jets, sub-grid models and homogeneous turbulence, separated flows and transition, thermal and compressible flows, wall flows and channel flows, complex flows, reacting flows, combustion, and flow past a square cylinder as a test case for large-eddy simulation 2. Among the specific topics are amplified frequencies in the proximal region of a circular jet, the self-consistency of the Smagorinsky constant and the value of the Rotta parameter at high Reynolds numbers, the large-eddy simulation of separated boundary layer transition, pressure and dilatation effects in high-speed turbulence, the mechanism of attenuation of turbulence by spanwise wall oscillation, non-unique solutions in turbulent curved pipe flow, extending the dynamic modelling procedure to turbulent reacting flows, and the large-eddy simulation of flow past a square cylinder using embedded meshes. No index. Annotation copyrighted by Book News, Inc., Portland, OR
Modeling And Simulation Of Turbulent Mixing And Reaction
DOWNLOAD
FREE 30 Days
Author : Daniel Livescu
language : en
Publisher: Springer Nature
Release Date : 2020-02-19
Modeling And Simulation Of Turbulent Mixing And Reaction written by Daniel Livescu and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-19 with Technology & Engineering categories.
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.
Computational Models For Turbulent Reacting Flows
DOWNLOAD
FREE 30 Days
Author : Rodney O. Fox
language : en
Publisher: Cambridge University Press
Release Date : 2003-10-30
Computational Models For Turbulent Reacting Flows written by Rodney O. Fox and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-10-30 with Mathematics categories.
Table of contents
Theory And Modeling Of Dispersed Multiphase Turbulent Reacting Flows
DOWNLOAD
FREE 30 Days
Author : Lixing Zhou
language : en
Publisher: Butterworth-Heinemann
Release Date : 2018-01-25
Theory And Modeling Of Dispersed Multiphase Turbulent Reacting Flows written by Lixing Zhou and has been published by Butterworth-Heinemann this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-01-25 with Science categories.
Theory and Modeling of Dispersed Multiphase Turbulent Reacting Flows gives a systematic account of the fundamentals of multiphase flows, turbulent flows and combustion theory. It presents the latest advances of models and theories in the field of dispersed multiphase turbulent reacting flow, covering basic equations of multiphase turbulent reacting flows, modeling of turbulent flows, modeling of multiphase turbulent flows, modeling of turbulent combusting flows, and numerical methods for simulation of multiphase turbulent reacting flows, etc. The book is ideal for graduated students, researchers and engineers in many disciplines in power and mechanical engineering. Provides a combination of multiphase fluid dynamics, turbulence theory and combustion theory Covers physical phenomena, numerical modeling theory and methods, and their applications Presents applications in a wide range of engineering facilities, such as utility and industrial furnaces, gas-turbine and rocket engines, internal combustion engines, chemical reactors, and cyclone separators, etc.