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Investigation Of Extinguishment By Thermal Agents Using Detailed Chemical Kinetic Modeling Of Opposed Flow Diffusion Flames
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Book Synopsis Investigation of Extinguishment by Thermal Agents Using Detailed Chemical Kinetic Modeling of Opposed-Flow Diffusion Flames by : W. M. Pitts
Download or read book Investigation of Extinguishment by Thermal Agents Using Detailed Chemical Kinetic Modeling of Opposed-Flow Diffusion Flames written by W. M. Pitts and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of Extinguishment by Thermal Agents Using Detailed Chemical Kinetic Modeling of Opposed Jet Diffusion Flames by : W. M. Pitts
Download or read book Investigation of Extinguishment by Thermal Agents Using Detailed Chemical Kinetic Modeling of Opposed Jet Diffusion Flames written by W. M. Pitts and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Projects 1993 written by Noel J. Raufaste and published by . This book was released on 1993 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Investigation of Extinguishment of Laminar Diffusion Flames by Thermal Agents by :
Download or read book Experimental Investigation of Extinguishment of Laminar Diffusion Flames by Thermal Agents written by and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Combustion Institute (U.S.). Eastern States Section. Fall Technical Meeting Publisher : ISBN 13 : Total Pages :498 pages Book Rating :4.E/5 ( download)
Book Synopsis Chemical and Physical Processes in Combustion by : Combustion Institute (U.S.). Eastern States Section. Fall Technical Meeting
Download or read book Chemical and Physical Processes in Combustion written by Combustion Institute (U.S.). Eastern States Section. Fall Technical Meeting and published by . This book was released on 2001 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis AIAA Aerospace Sciences Meeting and Exhibit, 42nd by :
Download or read book AIAA Aerospace Sciences Meeting and Exhibit, 42nd written by and published by . This book was released on 2004 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Chemical Kinetics Model for the Opposed Flow Diffusion Flame by : C. M. Ablow
Download or read book A Chemical Kinetics Model for the Opposed Flow Diffusion Flame written by C. M. Ablow and published by . This book was released on 1972 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: A theoretical analysis is developed of the reaction kinetics limitations leading to the extinction of a counterflow diffusion flame. With increasing mass flux of reactants into the diffusion flame a maximum in the consumption rate of fuel and oxidizer in the reaction zone is encountered. The analysis shows that experimental measurements of the extinction conditions ('apparent flame strengths') are amenable to evaluation of overall kinetic parameters such as the activation energy, the preexponential Arrhenius term, and the order of reaction. The theoretical model is applied to the propane-oxygen-nitrogen system and an activation energy of 21.9 kcal/mole is derived from published experimental flame extinction data. (Author).
Book Synopsis Publications of the National Institute of Standards and Technology ... Catalog by : National Institute of Standards and Technology (U.S.)
Download or read book Publications of the National Institute of Standards and Technology ... Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1994 with total page 1162 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 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thermal Agent Extinguishment of Two Types of Diffusion Flames by : W. M. Pitts
Download or read book Thermal Agent Extinguishment of Two Types of Diffusion Flames written by W. M. Pitts and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fuel Effects on the Extinguishment of Laminar Diffusion Flames by Thermal Agents by : W. M. Pitts
Download or read book Fuel Effects on the Extinguishment of Laminar Diffusion Flames by Thermal Agents written by W. M. Pitts and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physical and Chemical Process in Flames by :
Download or read book Physical and Chemical Process in Flames written by and published by . This book was released on 2006 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of the present program are to develop detailed and simplified chemical kinetics models for hydrocarbon combustion, and to understand and quantify the dynamics of flames. During the reporting period progress were made in the following projects: (1) Skeletal reduction using sensitivity analysis aided by directed relation graph; (2) derivation of analytical solution of quasi-steady state species using directed graph; (3) derivation of a reduced mechanism for lean premixed methane/air flames; (4) extinction and stability analyses of diffusion flames with radiation heat loss; and (5) study of the response of premixed flames to velocity fluctuations with flame stretch effects.
Book Synopsis Modelling Detailed-Chemistry Effects on Turbulent Diffusion Flames Using a Parallel Solution-Adaptive Scheme by : Pradeep Kumar Jha
Download or read book Modelling Detailed-Chemistry Effects on Turbulent Diffusion Flames Using a Parallel Solution-Adaptive Scheme written by Pradeep Kumar Jha and published by . This book was released on 2011 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Capturing the effects of detailed-chemistry on turbulent combustion processes is a central challenge faced by the numerical combustion community. However, the inherent complexity and non-linear nature of both turbulence and chemistry require that combustion models rely heavily on engineering approximations to remain computationally tractable. This thesis proposes a computationally efficient algorithm for modelling detailed-chemistry effects in turbulent diffusion flames and numerically predicting the associated flame properties. The cornerstone of this combustion modelling tool is the use of parallel Adaptive Mesh Refinement (AMR) scheme with the recently proposed Flame Prolongation of Intrinsic low-dimensional manifold (FPI) tabulated-chemistry approach for modelling complex chemistry. The effect of turbulence on the mean chemistry is incorporated using a Presumed Conditional Moment (PCM) approach based on a beta-probability density function (PDF). The two-equation k-w turbulence model is used for modelling the effects of the unresolved turbulence on the mean flow field. The finite-rate of methane-air combustion is represented here by using the GRI-Mech 3.0 scheme. This detailed mechanism is used to build the FPI tables. A state of the art numerical scheme based on a parallel block-based solution-adaptive algorithm has been developed to solve the Favre-averaged Navier-Stokes (FANS) and other governing partial-differential equations using a second-order accurate, fully-coupled finite-volume formulation on body-fitted, multi-block, quadrilateral/hexahedral mesh for two-dimensional and three-dimensional flow geometries, respectively. A standard fourth-order Runge-Kutta time-marching scheme is used for time-accurate temporal discretizations. Numerical predictions of three different diffusion flames configurations are considered in the present work: a laminar counter-flow flame; a laminar co-flow diffusion flame; and a Sydney bluff-body turbulent reacting flow. Comparisons are made between the predicted results of the present FPI scheme and Steady Laminar Flamelet Model (SLFM) approach for diffusion flames. The effects of grid resolution on the predicted overall flame solutions are also assessed. Other non-reacting flows have also been considered to further validate other aspects of the numerical scheme. The present schemes predict results which are in good agreement with published experimental results and reduces the computational cost involved in modelling turbulent diffusion flames significantly, both in terms of storage and processing time.
Book Synopsis Physical and Chemical Processes in Flames by :
Download or read book Physical and Chemical Processes in Flames written by and published by . This book was released on 2004 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the present program was to study the structure and response of laminar premixed and nonpremixed flames with emphases on effects of high pressure, flame/flow unsteadiness, and chemistry. The investigations were conducted through laser-based experimentation, computational simulation with detailed chemistry and transport descriptions, and advanced mathematical analysis. Specific phenomena studied during the reporting period include the intrinsic pulsating instabilities of premixed and diffusion flames and the effects of stretch and radiation heat loss on the onset of pulsation and the associated extinction and flammability limits. laminar flame speed data were acquired for several fuel mixtures at atmospheric pressure and methane/air at elevated pressures. Directed relation graph theory and computational simulation were applied to develop automatic computational algorithms for the simplification of detailed mechanisms to skeletal mechanisms and of skeletal mechanisms to reduced mechanisms, respectively. These contributions are expected to be useful to the general interests of AFOSR in the fundamental and practical issues of flame dynamics and chemical kinetics, turbulent combustion, soot formation, radiation hear transfer, flame extinction, stabilization, flammability, and supersonic combustion.
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Detailed Chemistry Modeling of Laminar Diffusion Flames on Parallel Computers by : International Business Machines Corporation. Research Division
Download or read book Detailed Chemistry Modeling of Laminar Diffusion Flames on Parallel Computers written by International Business Machines Corporation. Research Division and published by . This book was released on 1994 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of Transient Counterflow Diffusion Flames with Radiation by : Tariq Shamim
Download or read book A Study of Transient Counterflow Diffusion Flames with Radiation written by Tariq Shamim and published by . This book was released on 1997 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
