Numerical modeling of chemistry and gas dynamics during shock-induced ethylene combustion

Clifford, L.; Milne, A.; Murray, B. G.

doi:10.1016/0010-2180(95)00131-x

Combustion and Flame

1996

DOI: 10.1016/0010-2180(95)00131-x

|View full text |Cite

Numerical modeling of chemistry and gas dynamics during shock-induced ethylene combustion

L. Clifford

A. Milne

B. G. Murray

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1998

2013

Publication Types

Select...

Article5

Relationship

Self Cite0

Independent5

Authors

Journals

Cited by 11 publications

(1 citation statement)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ignition delay time or reaction time [1][2][3] is one of the most important parameters characterizing the combustion process of different fuels and thus is very important for combustion modeling. Accurate calculation of the ignition delay time, especially for the combustion process with a variety of fuel blends in gas turbines and other combustion engines, is a complicated procedure because of the complex interaction between flows and chemical kinetics [4].…”

mentioning

confidence: 99%

Correlations for the ignition delay times of hydrogen/air mixtures

Zhao

Chen

2011

Chin. Sci. Bull.

View full text Add to dashboard Cite

Correlations for the ignition delay times of hydrogen/air mixtures were developed using the method of High Dimensional Model Representation (HDMR). The hydrogen/air ignition delay times for initial conditions over a wide range of temperatures from 800 to 1600 K, pressures from 0.1 to 100 atm, and equivalence ratios from 0.2 to 10 were first calculated utilizing the full chemical mechanism. Correlations were then developed based on these ignition delay times. Two forms of correlations were constructed: the first one is an overall general model covering the whole range of the initial conditions; while the second one is a piecewise correlation model valid for initial conditions within different sub-domains. The performance of these correlations was studied through comparison with results from the full chemical mechanism as well as experimental data. It was shown that these correlations work well over the whole range of initial conditions and that the accuracy can be significantly improved by using different piecewise correlations for different sub-domains. Therefore, piecewise correlations can be used as an effective replacement for the full mechanism when the prediction of chemical time scale is needed in certain combustion modeling. Ignition delay time or reaction time [1-3] is one of the most important parameters characterizing the combustion process of different fuels and thus is very important for combustion modeling. Accurate calculation of the ignition delay time, especially for the combustion process with a variety of fuel blends in gas turbines and other combustion engines, is a complicated procedure because of the complex interaction between flows and chemical kinetics [4]. For hydrocarbon and synthetic bio-fuels with a large number of species and a broad range of time scales, enormous computation time is required to handle the detailed chemistry in reactive flow simulation [5]. Moreover, it is required to couple a full chemistry solver with a full-scale numerical flow solver which makes the whole procedure time-consuming and far beyond the limitation of current computers [3]. Therefore, there is an increasing need to find simplified alternatives which can accurately and efficiently predict the over-all behavior of all chemical reactions.*Corresponding author (email: cz@pku.edu.cn)In order to reduce the computational time due to complex chemistry, different correlations were developed to calculate the ignition delay times for different mixtures. For example, Molnar and Marek [6,7] developed reduced equations from fitted kinetics modeling for jet-A and methane fuels. More recently, Donato and Petersen [3] provided simplified correlation equations to calculate the ignition delay times of syngas/air mixtures at different initial temperatures, pressures, and equivalence ratios. These correlations [3,6,7] were obtained through curve fitting and thus the accuracy was highly constrained by the nonlinear regression process. Instead of conducting nonlinear regression, the method of High Dimensional Model Represen...

show abstract

mentioning

confidence: 99%

Correlations for the ignition delay times of hydrogen/air mixtures

Zhao

Chen

2011

Chin. Sci. Bull.

View full text Add to dashboard Cite

show abstract

Chemical kinetic modeling for the effects of methyl ester moiety in biodiesel on PAHs and NO x formation

Shu

Zhang

et al. 2013

Trans. Tianjin Univ.

View full text Add to dashboard Cite

Simplified correlation models for CO/H2 chemical reaction times

Donato

Petersen

2008

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Numerical modeling of chemistry and gas dynamics during shock-induced ethylene combustion

Cited by 11 publications

References 15 publications

Correlations for the ignition delay times of hydrogen/air mixtures

Correlations for the ignition delay times of hydrogen/air mixtures

Chemical kinetic modeling for the effects of methyl ester moiety in biodiesel on PAHs and NO x formation

Simplified correlation models for CO/H2 chemical reaction times

Contact Info

Product

Resources

About