e - Propulsion and Combustion Laboratory
e - Propulsion and Combustion Laboratory
e - Propulsion and Combustion Laboratory
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Introduction – Combustor Analysis (Continued.)‣ 필요한 방정식과 모델• 연속, 운동량, 에너지, 난류, 화학종, 복사열전달• 난류모델, 연소모델‣ 복사전달방정식 (Radiative Transfer Equation, RTE)• 복사전달 방정식은 에너지 방정식의 복사생성항을 구하기 위하여 필요 에너지방정식의 복사생성항 :R−∇⋅ q = κ 4πI − IdΩ• 복사전달방정식dIdsa( b )σs= κaIb− ( κa+ σs) I+ I′ d ′4π ∫ Φ ΩΩ= ′ 4π∫4π( )I = I x, y, z, θ , φ : 복사강도 (radiative intensity),κ a : 흡수계수 (absorption coefficient)σ s : 산란계수 (scattering coefficient)Φ : 산란위상함수 (scattering phase function)2⎡⎣Wm⎤⎦4 <strong>Propulsion</strong> <strong>and</strong> <strong>Combustion</strong> Lab.