| タイトル | Computations of spray, fuel-air mixing, and combustion in a lean-premixed-prevaporized combustor |
| 著者（英） | Dasgupta, A.; Deur, J. M.; Shih, T. I.-P.; Li, Z.; Kundu, K. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1993-06-01 |
| 言語 | eng |
| 内容記述 | A code was developed for computing the multidimensional flow, spray, combustion, and pollutant formation inside gas turbine combustors. The code developed is based on a Lagrangian-Eulerian formulation and utilizes an implicit finite-volume method. The focus of this paper is on the spray part of the code (both formulation and algorithm), and a number of issues related to the computation of sprays and fuel-air mixing in a lean-premixed-prevaporized combustor. The issues addressed include: (1) how grid spacings affect the diffusion of evaporated fuel, and (2) how spurious modes can arise through modelling of the spray in the Lagrangian computations. An upwind interpolation scheme is proposed to account for some effects of grid spacing on the artificial diffusion of the evaporated fuel. Also, some guidelines are presented to minimize errors associated with the spurious modes. |
| NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
| レポートNO | 93A49901
AIAA PAPER 93-2069 |
| 権利 | Copyright |
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