Last edited by Sat
Saturday, May 16, 2020 | History

3 edition of Numerical methods in laminar flame propagation found in the catalog.

Numerical methods in laminar flame propagation

a GAMM-workshop

  • 17 Want to read
  • 34 Currently reading

Published by Vieweg in Braunschweig .
Written in English

    Subjects:
  • Flame -- Congresses.,
  • Combustion -- Congresses.,
  • Numerical calculations -- Congresses.

  • Edition Notes

    Includes bibliographies.

    StatementNorbert Peters, Jürgen Warnatz, eds.
    GenreCongresses.
    SeriesNotes on numerical fluid mechanics -- v. 6.
    ContributionsPeters, Norbert., Warnatz, J.
    The Physical Object
    Paginationviii, 202 p. :
    Number of Pages202
    ID Numbers
    Open LibraryOL16560962M
    ISBN 103528080809

    6. Laminar Premixed Flames • A premixed flame is self-sustaining propagation of a localized combustion zone at subsonic velocities. • We use the term deflagration in gasdynamics to define a premixed flame travelling at subsonic velocities. • Consider a premixed flammable mixture in a long tube, open at both ends, ignited from one end. A. @article{osti_, title = {Mathematical theory of combustion and explosions}, author = {Zeldovich, IA.B. and Barenblatt, G.I. and Librovich, V.B. and Makhviladze, G.M.}, abstractNote = {Various topics in the area of combustion and explosives are discussed. The general subjects considered include: basic physical concepts of the science of combustion, the time .

    The aim of this study is to calculate the laminar burning velocity of a premixed methane-air flame using two different experimental methods -- the slot burner, and the Bunsen burner technique. In both experiments flame angle and flame area are estimated by using a digital camera. The gas flow rates are measured using a flow Size: 1MB.   Spontaneous propagation of chemical reactions. The influence of initial conditions.- 5. Formation of a Stationary Laminar Flame Front.- Review of analytic studies.- Application of numerical methods to the transition to a stationary combustion regime.- Stationary combustion waves as self-similar solutions of the second kind.- 6. The Diffusional Author: Grigory Isaakovich Barenblatt.

    Numerical Calculation of Laminar Flame Propagation with Parallelism Assignment ZERO, CS , UC Berkeley, Spring Xian Shi 1bio I am a second-year Ph.D. student from Combustion Analysis/Modeling Lab, Department of Mechanical Engineering. My research interests are solving fundamental thermal, fluid and chemical problems. Specifically, I am. laminar flame speed, and we use the approximation paL = poS*L = constant. Equa-tion (5) accounts for the effect of the flame stretch given by the results (2). To include the effect of thermal expansion, we introduce the total energy 1 2 e = 5u_ + c,T + q[1 - _t(G)] (6) where 7"l is the Heaviside function. This implies that as the flow crosses.


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Numerical methods in laminar flame propagation Download PDF EPUB FB2

Numerical Methods in Laminar Flame Propagation A GAMM-Workshop. Authors: Peters, Norbert, Numerical Solution of Burner-Stabilized Numerical methods in laminar flame propagation book Laminar Flames by an Efficient Boundary Value Method. Book Title Numerical Methods in Laminar Flame Propagation Book Subtitle A GAMM-Workshop Authors.

: Numerical Methods in Laminar Flame Propagations: A Gamm-Workshop (Notes on Numerical Fluid Mechanics) (): Norbert Peters, Na: Books. Numerical Solution of Burner-Stabilized Pre-Mixed Laminar Flames by an Efficient Boundary Value Method Mitchell D.

Smooke, James A. Miller, Robert J. Kee Pages Genre/Form: Kongress Conference papers and proceedings Aachen () Congresses: Additional Physical Format: Online version: Numerical methods in laminar flame propagation. COMPUTATIONS OF LAMINAR FLAME PROPAGATION USING AN EXPLICIT NUMERICAL METHOD ROLF D.

REITZ Research Scientist, Courant Institute of Mathematical Sciences, New York University, New York, N.Y. Numerical methods are applied to a coupled system of one-dimensional unsteady reaction- diffusion equations to seek propagating wave by: Numerical study of the laminar flame propagation in ethane-air mixtures Article (PDF Available) in Central European Journal of Chemistry 12(3) March.

Numerical simulations are carried out to study flame propagation in laminar stratified fuel–air mixtures. Studies are carried out in hydrogen–air and methane–air mixtures. A species step skeletal mechanism is employed for methane oxidation and a 9-species step mechanism for hydrogen by: PDF | A numerical analysis of the quenching of a laminar, premixed hydrogen-air flame is presented.

A global and a detailed reaction mechanism are |. This volume collects the results of a workshop held at Aachen, West-Germany, Oct. 12 - Oct. 14, The purpose in bringing together scientists actively working in the field of Numerical methods in flame propagation was two-fold: 1.

To confront them with recent results obtained by large ac tivation-energy asymptotics and to check these Numerically.

The simulations deliver the laminar burning velocities and the profiles of temperature, chemical species concentrations and heat release rate across the flame front. The predicted burning velocities match well the burning velocities measured in various conditions, reported in by: 5.

LAMINAR FLAME PROPAGATION Let v = m/p denote the mass-weighted average velocity of the gas mixture; then Eq. (6) can be written in the equivalent form Ej = 1j(1 + f,jjv).•.(7) The net rate of production of mass of species J by chemical reaction per unit volume per unit time will be denoted by the symbol Wj.

From the point of. In combustion, flame stretch is a quantity which measures the amount of stretch of the flame surface due to curvature and due to the outer velocity field concept of flame stretch was introduced by Karlovitz in George H.

Markstein studied flame stretch by treating the flame surface as a hydrodynamic discontinuity (known as flame front). Numerical methods in laminar flame propagation: a GAMM-Workshop [held at Aachen, West-Germany, oct. 12 - oct. 14 by Gesellschaft für Angewandte Mathematik und Mechanik (GAMM) (Book).

Introducing numerical techniques for combustion, this textbook describes both laminar and turbulent flames, addresses the problem of flame-wall interaction, and presents a series of theoretical tools used to study the coupling phenomena between combustion and acoustics.

The second edition incorporates recent advances in unsteady simulation methods. () A study of moving mesh methods applied to a thin flame propagating in a detonator delay element. Computers & Mathematics with Applications() Uniformly convergent high order finite element solutions of a singularly perturbed reaction–diffusion equation using mesh by: A general theory on spherical flame initiation and propagation and an accurate numerical algorithm for adaptive simulation of unsteady reactive flow are first developed.

The general theory describes different flame regimes and transitions among them. LAMINAR FLAME PROPAGATION IN MIXTURES WITH COMPOSITIONAL STRATIFICATION AT SMALL LENGTH SCALES BY DAVID P.

SCHMIDT THESIS Submitted in partial fulfillment of the requirements for the degree of Master of Science in Mechanical Engineering in the Graduate College of the University of Illinois at Urbana-Champaign, Urbana, Illinois Adviser.

The effect of a perforated plate on the propagation of laminar hydrogen flames in a channel e A numerical study C.J. Wang a, J.X. Wen b,* a State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei,Anhui, China b Warwick FIRE, School of Engineering, University of Warwick, Coventry, CV4 7AL, UK article info Article history.

However, resolving laminar flame thicknesses (which are in the order of microns) in engineering combustion systems (ICEs, GTs,etc.) is quite expensive even with today's computational resources. So when CONVERGE manual says "In SAGE mode, a flame front that is well solved through AMR" what it means is that AMR can be used to efficiently.

Abstract Laminar flame speed is one of the most impor-tant intrinsic properties of a combustible mixture. Due to its importance, different methods have been developed to measure the laminar flame speed. This paper reviews the constant-volume propagating spherical flame method for laminar flame speed measurement.

This method can beFile Size: 2MB. @article{osti_, title = {Numerical approaches to combustion modeling. Progress in Astronautics and Aeronautics. Progress in Astronautics and Aeronautics.

Vol. }, author = {Oran, E S and Boris, J P}, abstractNote = {Various papers on numerical approaches to combustion modeling are presented.A laminar flame can be considered as the flow of a reacting gas mixture, consisting of N different chemical species.

Therefore, in the theory of laminar flames both fluid dynamics and chemical kinetics play an important role. The governing equations describe conservation of mass, momentum and energy of the mixture as a whole and conservation of mass of each separate .Extensively using experimental and numerical illustrations, Combustion Phenomena: Selected Mechanisms of Flame Formation, Propagation, and Extinction provides a comprehensive survey of the fundamental processes of flame formation, propagation, and extinction.

Taking you through the stages of combustion, leading experts visually display, mathematically explain, and clearly .