A brief review on combusion modeling
Authors
Citation
International journal on architectural science, v.6, no.2, 2005, pp. 38-69
Abstract
There is strong demand in applying combustion modeling for building fires, burning materials and of course for engines and furnaces. Most combustion flows, particularly those in fires, are very complicated to study. Concept on applied physics and chemistry would be applied.
A review on combustion modeling will be presented in this paper. Effects of turbulence on flame propagation are focused. Some fundamental aspects of combustion modeling for numerical modeling of premixed and diffusion turbulent combustion are discussed. Eddy break-up model and its expansion, Eddy dissipation model, simplified PDF model with different reaction rate and flame surface, and flamelet model are included.
(1) Laminar and turbulent premixed flames
(a) Spreading rate of laminar flames
(i) Zeldovich’s analysis of flame propagation
(ii) Premixed turbulent flame propagation
(iii) Turbulent flame propagation
(iv) The concept of self-turbulent flame
(2) Diffusion combustion
(a) Laminar diffusion flames
(i) Differential equations of diffusion flames
(ii) Solving the differential equations for diffusion flames
(b) Fundamental aspects of laminar diffusion flames with fast chemistry (one-step reaction)
(c) Simple chemical reacting system (SCRS) and mixture fraction
(d) An example of numerical modeling of laminar diffusion flames
(i) Numerical modeling of laminar diffusion flame with infinitely fast reaction rate
(ii) Numerical modeling of combustion with finite reaction rate
(3) Premixed turbulent combustion
(a) Eddy break-up (EBU) model and the time-averaged reaction rate of turbulent flow
(b) Eddy dissipation model (EDC)
(c) Expansion of the EBU model
(d) Simplified PDF model of fast reaction flow (Diffusion-controlled)
(e) Flame surface model
(f) Model of partial instantaneous non-mixing
(g) Simplified PDF assumptions of finite reaction rate
(h) Simplified PDF model of premixed reaction flow (reaction flow controlled by both diffusion and chemical reaction)
(i) Brief introduction of laminar flamelet model
(4) References
Description
Subject
Type
Article
Format
Date
2005
Language
en