Modelling of Spray Flames with Doubly Conditional Moment Closure.

Modelling of Spray Flames with Doubly Conditional Moment Closure.
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DOI:
10.1007/s10494-017-9873-3
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发表时间:
2017
期刊:
Flow, turbulence and combustion
影响因子:
--
通讯作者:
Mastorakos E
Mastorakos E
中科院分区:
其他
文献类型:
--
作者:
Sitte MP;Mastorakos E

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Simulations of a pilot-stabilised flame in a uniformly dispersed ethanol spray are performed using a Doubly Conditional Moment Closure (DCMC) model. The DCMC equation for spray combustion is derived, using the mixture fraction and the reaction progress variable as conditioning variables, including droplet evaporation and differential diffusion terms. A set of closure sub-models is suggested to allow for a first, preliminary application of the DCMC model to the test case presented here. In particular, the DCMC model is used to provide complete closure for the Favre-averaged spray terms in the mean and variance equations of the conditioning variables and the present test case is used to assess the importance of each term. Comparison with experimental data shows a promising overall agreement, whilst differences are related to modelling choices.
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