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AuthorAbdellatif M., Sadeq
AuthorAhmed, Samer F.
AuthorSleiti, Ahmad K.
Available date2024-03-25T10:14:11Z
Publication Date2021-02-04
Publication NameFuel
Identifierhttp://dx.doi.org/10.1016/j.fuel.2021.120184
CitationSadeq, A. M., Ahmed, S. F., & Sleiti, A. K. (2021). Transient 3D simulations of turbulent premixed flames of gas-to-liquid (GTL) fuel in a fan-stirred combustion vessel. Fuel, 291, 120184.
ISSN0016-2361
URIhttps://www.sciencedirect.com/science/article/pii/S0016236121000600
URIhttp://hdl.handle.net/10576/53456
AbstractThis work aims to conduct turbulent flame studies of GTL fuel and 50/50 diesel-GTLblend and compare them to diesel under a wide range of equivalence ratio (0.7 < Ф < 1.3) and turbulence intensities (0.5 m/s < u′ < 3.0 m/s). For this purpose, Zimont Turbulent Flame Speed Closure (Zimont TFC) model is adapted and implemented into ANSYS Fluent to study the influence of turbulence on premixed combustion. The model is verified against the experimental results of the turbulent flame speeds for methane-air mixture using a cylindrical fan-stirred combustion vessel. Results show that (i) rich diesel and lean GTL fuels are characterized by a faster flame development and higher turbulent flame speeds; (ii) at the same elapsed time, ReT and Da are found to be greater for stoichiometric GTL fuel compared to diesel and 50/50 diesel GTL blend, which indicates that the flame propagates towards the vessel’s wall at a faster rate and the chemistry has dominated turbulence in a shorter time, and (iii) at low turbulence intensity level (u′=0.5 m/s), the flame morphology is defined by a wrinkled flamelet regime in Borghi diagram. However, at moderate and higher turbulence levels (u′=1.5 m/s and u′=3.0 m/s, respectively), the flame structure is defined by the corrugated flamelets regime. Furthermore, the turbulence homogeneity and isotropy have been investigated throughout the combustion vessel by conducting a study for the turbulent kinetic energy balance.
SponsorOpen Access funding provided by the Qatar National Library.
Languageen
PublisherElsevier
SubjectComputational fluid dynamics
Turbulent premixed flames
Fan-stirred combustion vessel
GTL fuel
Zimont TFC model
Turbulent flame speeds
TitleTransient 3D simulations of turbulent premixed flames of gas-to-liquid (GTL) fuel in a fan-stirred combustion vessel
TypeArticle
Volume Number291
Open Access user License http://creativecommons.org/licenses/by/4.0/
ESSN1873-7153
dc.accessType Open Access


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