@techreport{oai:jaxa.repo.nii.ac.jp:00041241,
 author = {Kumar, S. and Kumar, Sanjiv},
 month = {May},
 note = {噴流保炎型ラム燃焼器の中の乱流火炎を、10個の化学種、28ステップの反応式を用いた伸長層流火炎片モデルで模擬した。連続、運動量、混合分率およびその変動などの3次元支配方程式に質量加重平均を適用した。乱れは低レイノルズ数κ-εモデルにより模擬し、やはり質量加重平均を用いた。熱化学量を計算するために推定確率密度関数(PDF)法を用いた。詳細には混合分率のPDFとしてβ-分布を用い、スカラー量消散のPDFとして対数正規分布を用いた。その他の熱化学量は解が収束したのち計算した。連続の式と運動量方程式の解はSIMPLERアルゴリズムを用いて求めた。不完全LU分解前処理付き共役勾配(ILU CG)法を線形化された式を解くために用いた。これらの結果得られた再循環領域、化学種および温度の分布を示した。, A computer code for the simulation of the turbulent reacting flow in a jet assisted ram combustor is developed. Favre averaged Continuity and Navier-Stokes equations, equations for a low Reynolds number kappa-epsilon model and equations for mixture fraction and its variance are solved to simulate the turbulent reacting flow. A Stretched Laminar Flamelet Model (SLFM) in the mixture fraction space is used to simulate the combustion of Hydrogen and Air using a 28-step reaction mechanism with 10 species. The SLFM is coupled to the turbulent flow through density which is calculated using an assumed beta-shaped probability distribution function for mixture fraction and a log-normal probability distribution function for the scalar dissipation. All other mass averaged thermochemical variables are computed off-line after a converged solution has been achieved. Solution of the continuity equation and the three momentum equations is achieved using the SIMPLER algorithm. The linearized system of equations for each variable is solved sequentially using a incomplete lower upper preconditioned conjugate gradient method. Simulation results showing the recirculation zones, distribution of species and temperature are presented., 資料番号: AA0004272000, レポート番号: NAL TR-1267T},
 title = {A computer model for the simulation of turbulent reacting flow in a jet assisted ram combustor},
 year = {1995}
}