한국연소학회:학술대회논문집
- 한국연소학회 2000년도 제21회 KOSCO SYMPOSIUM 논문집
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- Pages.24-32
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- 2000
난류확산연소에서의 conditional moment closure modeling
Conditional moment closure modeling in turbulent nonpremixed combustion
초록
A brief introduction is given on the conditional moment closure model for turbulent nonpremixed combustion. It is based on the transport equations derived through a rigorous mathematical procedure for the conditionally averaged quantities and appropriate modeling forms for conditional scalar dissipation rate, conditional mean velocity and reaction rate. Examples are given for prediction of NO and OH in bluffbody flames, soot distribution in jet flames and autoignition of a methane/ethane jet to predict the ignition delay with respect to initial temperature, pressure and fuel composition. Conditional averaging may also be a powerful modeling concept in other approaches involved in turbulent combustion problems in various different regimes.
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