Multiple mapping conditioning of turbulent jet diffusion flames
نویسندگان
چکیده
منابع مشابه
Modeling soot formation in turbulent kerosene/air jet diffusion flames
Soot volume fraction and number density in a turbulent diffusion flame burning kerosene/air were predicted using two approaches. The first used a conventional soot inception model based on the acetylene concentration and is referred to as the acetylene model. The second used a soot inception model based on the formation rate of three and two ring aromatics [1] and is referred to as the PAH ince...
متن کاملUnsteady Flamelet Modeling of Differential Diffusion in Turbulent Jet Diffusion Flames
An unsteady flamelet model, which will be called the Lagrangian Flamelet Model, has been applied to a steady, turbulent CH4/H2/N2–air diffusion flame. The results have been shown to be in reasonable agreement with experimental data for axial velocity, mixture fraction, species mass fractions, and temperature. The application of three different chemical mechanisms leads to the promising conclusi...
متن کاملLES modeling for lifted turbulent jet flames
The LES method is an attractive approach for the simulation of turbulent jet flames. In this method, the effects of large scale structures controlling the mixing process are resolved while small-scale effects such as the leading-edge flames involved in the flame base dynamics are accounted for by the subgrid-scale models. The LES approach is examined in this study with a particular emphasis on ...
متن کاملCharacteristics of Turbulent Nonpremixed Jet-flames and Jet-flames in Crossflow in Normal- and Low-gravity
It is well known that buoyancy has a major influence on the flow structure of turbulent nonpremixed jet flames. For example, previous studies have shown that transitional and turbulent jet flames exhibit flame lengths that are as much as a factor of two longer in microgravity than in normal gravity. The objective of this study is to extend these previous studies by investigating both mean and f...
متن کاملA generalised multiple mapping conditioning approach for turbulent combustion
This paper follows the evolution in understanding of the multiple mapping monditioning (MMC) approach for turbulent combustion and reviews different implementations of MMC models. As the MMC name suggests, the original version represents a consistent combination of CMC-type conditional equations (conditional moment closure) and generalised mapping closure. It seems that the strength of the MMC ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the Combustion Institute
سال: 2009
ISSN: 1540-7489
DOI: 10.1016/j.proci.2008.06.164