| タイトル | A thermal NO(x) prediction model - Scalar computation module for CFD codes with fluid and kinetic effects |
| 著者（英） | Chun, Kue; Mcbeath, Giorgio; Ghorashi, Bahman |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1993-06-01 |
| 言語 | eng |
| 内容記述 | A thermal NO(x) prediction model is developed to interface with a CFD, k-epsilon based code. A converged solution from the CFD code is the input to the postprocessing model for prediction of thermal NO(x). The model uses a decoupled analysis to estimate the equilibrium level of (NO(x))e which is the constant rate limit. This value is used to estimate the flame (NO(x)) and in turn predict the rate of formation at each node using a two-step Zeldovich mechanism. The rate is fixed on the NO(x) production rate plot by estimating the time to reach equilibrium by a differential analysis based on the reaction: O + N2 = NO + N. The rate is integrated in the nonequilibrium time space based on the residence time at each node in the computational domain. The sum of all nodal predictions yields the total NO(x) level. |
| NASA分類 | INORGANIC AND PHYSICAL CHEMISTRY |
| レポートNO | 93A50147
AIAA PAPER 93-2378 |
| 権利 | Copyright |
