... the use of computational fluid dynamics (CFD) for the simulation and scaling of practical ammonia systems, evaluating the performance of different numerical models for NH 3 combustion. In this study, large eddy simulation (LES) is utilized to predict a series of NH 3 / H 2 / N 2 nonpremixed flames...

... 19 05 2022 30 08 2022 28 11 2022 RCCI tri-fuel optical engine large eddy simulation combustion At present, although the clean energy vehicle market is developing rapidly, internal combustion engine (ICE), as one of the most important power systems, still occupies...

...Zixiang Sun; Feng Gao; John W. Chew; Dario Amirante Flow and heat transfer in axial compressor disk cavities involve strong interaction of axial throughflow at the disk bores with centrifugal buoyant flow in the cavities. This paper presents large eddy simulation (LES) of flow and heat transfer...

...Wanhui Zhao; Ting Sun; Lei Zhou; Haiqiao Wei The ignition process of spray flame in a methane environment was studied using large eddy simulation. By comparing the combustion process of n-dodecane spray (single fuel, SF) and n-dodecane/methane dual fuels (DF), the effect of methane addition...

...Wenjin Qin; Dengbiao Lu; Lihui Xu In this research, n-dodecane and world-average jet fuel (JW) are selected as single and multicomponent surrogate fuel of aviation kerosene to study the Jet-A spray combustion characteristics. The spray combustion phenomena are simulated using large eddy simulation...

...Wanhui Zhao; Lei Zhou; Wenjin Qin; Haiqiao Wei Large eddy simulation of n-heptane spray flames is conducted to investigate the multiple-stage ignition process under extreme (low-temperature, low oxygen, and high-temperature, high-density) conditions. At low oxygen concentrations, the first-stage...

...Usman Allauddin; Michael Pfitzner Recently, a fractal-based algebraic flame surface density (FSD) premixed combustion model has been derived and validated in the context of large eddy simulation (LES). The fractal parameters in the model, namely the cut-off scales and the fractal dimension were...

... Simulation of Turbulent Flows ,” New J. Phys. , 6 , pp. 35 – 58 . 10.1088/1367-2630/6/1/035 [29] Celik , I. , Yavuz , I. , and Smirnov , A. , 2001 , “ Large Eddy Simulations of In-Cylinder Turbulence for Internal Combustion Engines: A Review ,” Int. J. Engine Res. , 2 ( 2 ), pp. 119...

.../0894-1777(94)00071-F [22] Moffat , R. J. , 1988 , “ Describing the Uncertainties in Experimental Results ,” Exp. Therm. Fluid Sci. , 1 , pp. 3 – 17 . 10.1016/0894-1777(88)90043-X [23] Murata , A. , and Mochizuki , S. , 2001 , “ Large Eddy Simulation of Turbulent Heat...

...C. Fureby Present-day demands on combustion equipment are increasing the need for improved understanding and prediction of turbulent combustion. Large eddy simulation (LES), in which the large-scale flow is resolved on the grid, leaving only the small-scale flow to be modeled, provides a natural...

...Ashoke De; Shengrong Zhu; Sumanta Acharya An unconfined strongly swirled flow is investigated for different Reynolds numbers using particle image velocimetry (PIV) and large eddy simulation (LES) with a thickened-flame (TF) model. Both reacting and nonreacting flow results are presented. In the LES...

...Peiqing Guo; Shusheng Zang; Bing Ge The objective of the current work is to shed light on simulating the flow features of nonpremixed flame stabilized by a circular-disk bluff-body with large eddy simulation technique. Two subgrid scale (SGS) models (Smagorinsky and Germano), combined...

...Ashoke De; Sumanta Acharya A thickened-flame (TF) modeling approach is combined with a large eddy simulation (LES) methodology to model premixed combustion, and the accuracy of these model predictions is evaluated by comparing with the piloted premixed stoichiometric methane-air flame data of Chen...