Abstract
A computational model for nonpremixed turbulent flames is presented. It is based on the conserved scalar approach and on a convenient specification of the probability density function, which allows the mean density to be recovered in closed (algebraic) form. The k-ε1 model is adopted for turbulence, and the resulting equations for parabolic flows are solved via a block implicit algorithm. The computed results are compared with experimental data and other authors' predictions.
Sommario
Si propone un modello per fiamme turbolente nonpremiscelate. Esso si basa sull'approccio dello scalare conservato e su una conveniente specificazione della funzione densità di probabilità, che permette di ottenere la densità media in forma chiusa (algebrica). Per la turbolenza si adotta il modello k-ε1, ed il sistema di equazioni risultante per flussi parabolici è risolto attraverso un algoritmo implicito a blocchi. I risultati calcolati sono confrontati con dati sperimentali e previsioni di altri autori.
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Lentini, D. Modelling and simulation of nonpremixed turbulent flames. Meccanica 27, 55–61 (1992). https://doi.org/10.1007/BF00453003
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DOI: https://doi.org/10.1007/BF00453003