Comprehensive Modeling of Turbulent Flames With the Coherent Flame-Sheet Model—Part I: Buoyant Diffusion Flames
Author:
Blunsdon C. A.1, Beeri Z.1, Malalasekera W. M. G.1, Dent J. C.1
Affiliation:
1. Department of Mechanical Engineering, Loughborough University of Technology, Loughborough, Leicestershire LE11 3TU, U.K.
Abstract
A modified version of the computational fluid dynamics code KIVA-II was used to model the transient behavior of buoyant turbulent diffusion flames burning in still air. Besides extensions to the range of permitted boundary conditions and the addition of buoyancy terms to the turbulence model, KIVA-II was augmented by a version of the coherent flame-sheet model, Tesner’s soot generation model, Magnussen’s soot oxidation model, and an implementation of the discrete transfer radiation model that included both banded and continuum radiation. The model captured many of the features of buoyant turbulent flames. Its predictions supported experimental observations regarding the presence and frequency of large-scale pulsations, and regarding axial distributions of temperature, velocity, and chemical species concentrations. The radial structure of the flame was less well represented. The axial radiative heat flux distribution from the flame highlighted deficiencies in the soot generation model, suggesting that a model of soot particle growth was required.
Publisher
ASME International
Subject
Geochemistry and Petrology,Mechanical Engineering,Energy Engineering and Power Technology,Fuel Technology,Renewable Energy, Sustainability and the Environment
Reference33 articles.
1. Ahmed, T., Plee, S. L., and Myers, J. P., 1981, “Computation of Nitric Oxide and Soot Emissions from Steady Turbulent Spray and Jet Flames,” EN-231, General Motors Research Laboratories, Warren, MI. 2. Amsden, A. A., Butler, T. D., O’Rourke, P. J., and Ramshaw, J. D., 1985a, “KIVA: A Comprehensive Model for 2D and 3D Engine Simulations,” SAE Paper 850554. 3. Amsden, A. A., Ramshaw, J. D., O’Rourke, P. J., and Dakowicz, J. K., 1985b, “KIVA: A Computer Program for Two and Three-Dimensional Fluid Flows with Chemical Reactions and Fuel Sprays,” LA-10245-MS, Los Alamos National Laboratory, Los Alamos, NM. 4. Amsden, A. A., Butler, T. D., and O’Rourke, P. J., 1987, “The KIVA-II Computer Program for Transient Multi-dimensional Chemically Reactive Flows with Sprays,” SAE Paper 872072. 5. Amsden, A. A., O’Rourke, P. J., and Butler, T. D., 1989, “KIVA-II: A Computer Program for Chemically Reactive Flows with Sprays,” LA-11560-MS, Los Alamos National Laboratory, Los Alamos, NM.
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|