| タイトル | Fast algorithm for calculating chemical kinetics in turbulent reacting flow |
| 著者（英） | Radhakrishnan, K.; Pratt, D. T. |
| 著者所属（英） | NASA Lewis Research Center|Aerojet Strategic Propulsion Co. |
| 発行日 | 1986-01-01 |
| 言語 | eng |
| 内容記述 | This paper addresses the need for a fast batch chemistry solver to perform the kinetics part of a split operator formulation of turbulent reacting flows, with special attention focused on the solution of the ordinary differential equations governing a homogeneous gas-phase chemical reaction. For this purpose, a two-part predictor-corrector algorithm which incorporates an exponentially fitted trapezoidal method was developed. The algorithm performs filtering of ill-posed initial conditions, automatic step-size selection, and automatic selection of Jacobi-Newton or Newton-Raphson iteration for convergence to achieve maximum computational efficiency while observing a prescribed error tolerance. The new algorithm, termed CREK1D (combustion reaction kinetics, one-dimensional), compared favorably with the code LSODE when tested on two representative problems drawn from combustion kinetics, and is faster than LSODE. |
| NASA分類 | INORGANIC AND PHYSICAL CHEMISTRY |
| レポートNO | 87A38958 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/377883 |
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