한국연소학회지 (Journal of the Korean Society of Combustion)
- 제14권2호
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- Pages.32-41
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- 2009
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- 1226-0959(pISSN)
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- 2466-2089(eISSN)
수송 확률밀도함수모델을 이용한 비예혼합 난류화염장 해석
Transported PDF Model for Turbulent Nonpremixed Flames
- 투고 : 2009.03.25
- 심사 : 2009.06.13
- 발행 : 2009.06.30
초록
The transported probability density function model combined with the consistent finite volume (FV) method has been applied to simulate the turbulent bluff-body reacting flows. To realistically account for the non-isotropic turbulence effects on the turbulent bluff-body reacting flows, the present PDF transport approach is based on the joint velocity- turbulent frequency-composition PDF formulation. The evolution of the fluctuating velocity of a particle is modeled by a simplified Langevin equation and the particle turbulence frequency is represented by the modified Jayesh - Pope model. Effects of molecular diffusion are represented by the interaction by exchange with the mean (IEM) mixing model. To validate this hybrid FV/PDF transport model, the numerical results are compared with experimental data for the turbulent bluff-body reacting flows.
키워드