Large eddy simulation of n-dodecane spray flame: Effects of injection pressure on spray combustion characteristics at low ambient temperature

Autor: Jiun Cai Ong, Yan Zhang, Shijie Xu, Jens Honore Walther, Xue-Song Bai, Kar Mun Pang

Publikováno v: Proceedings of the Combustion Institute, 39 (2)
Ong, J C, Zhang, Y, Xu, S, Walther, J H, Bai, X-S & Pang, K M 2023, ' Large eddy simulation of n-dodecane spray flame: Effects of injection pressure on spray combustion characteristics at low ambient temperature ', Proceedings of the Combustion Institute, vol. 39, no. 2, pp. 2631-2642 . https://doi.org/10.1016/j.proci.2022.07.139

The present study uses large-eddy simulations (LES) to identify the underlying mechanism that governs the ignition and stabilization mechanisms of ECN Spray A flame for different injection pressures (Pinj) and ambient temperatures (Tam). Two Pinj of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6945c3613371f7124e1fa7807f25117b
https://hdl.handle.net/20.500.11850/617180

Numerical Study of the Influence of Turbulence–Chemistry Interaction on URANS Simulations of Diesel Spray Flame Structures under Marine Engine-like Conditions

Autor: Jens Honore Walther, Xue-Song Bai, Jiun Cai Ong, Kar Mun Pang, Mehdi Jangi

Publikováno v: Ong, J C, Pang, K M, Jangi, M, Bai, X-S & Walther, J H 2021, ' Numerical Study of the Influence of Turbulence–Chemistry Interaction on URANS Simulations of Diesel Spray Flame Structures under Marine Engine-like Conditions ', Energy Fuels, vol. 35, no. 14, pp. 11457–11467 . https://doi.org/10.1021/acs.energyfuels.1c01091

The present work performs unsteady Reynolds-averaged Navier–Stokes simulations to study the effect of turbulence–chemistry interaction (TCI) on diesel spray flames. Three nozzle diameters (d0) of 100, 180, and 363 μm are considered in the presen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96919c08ff5ea62221a9b60f3aa11efd
https://doi.org/10.1021/acs.energyfuels.1c01091

A numerical study of the influence of pilot fuel injection timing on combustion and emission formation under two-stroke dual-fuel marine engine-like conditions

Autor: Arash Nemati, Jiun Cai Ong, Kar Mun Pang, Stefan Mayer, Jens Honoré Walther

Publikováno v: Fuel, 312
Nemati, A, Ong, J C, Pang, K M, Mayer, S & Walther, J H 2022, ' A numerical study of the influence of pilot fuel injection timing on combustion and emission formation under two-stroke dual-fuel marine engine-like conditions ', Fuel, vol. 312, 122651 . https://doi.org/10.1016/j.fuel.2021.122651

Stricter regulations imposed on emissions are motivating the scientific community to consider studying alternative fuels to achieve low emission, high efficient dual-fuel (DF) marine engines. In this context, three dimensional computational fluid dyn

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::002ce3fda4010bf9032e3fa5e612bdb2
https://hdl.handle.net/20.500.11850/522325

Large eddy simulation of soot formation and oxidation for different ambient temperatures and oxygen levels

Autor: Min Zhang, Jens Honore Walther, Jiun Cai Ong, Xue-Song Bai, Kar Mun Pang

Publikováno v: Zhang, M, Ong, J C, Pang, K M, Bai, X-S & Walther, J H 2022, ' Large eddy simulation of soot formation and oxidation for different ambient temperatures and oxygen levels ', Applied Energy, vol. 306, 118094 . https://doi.org/10.1016/j.apenergy.2021.118094

This paper presents the numerical study of soot formation and oxidation processes across different ambient temperatures (900, 1000, and 1100) and oxygen levels (15% and 21% O2) using large eddy simulation coupled with a two-equation soot model. The p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb798f63691d0291668de40162acee01
https://orbit.dtu.dk/en/publications/fd910cff-c395-478c-b248-26a0ce253058

Effects of Ambient Oxygen and Density on Primary Soot Size under Diesel-Like Conditions Using a Lagrangian Soot Tracking Model

Autor: Jee-Hou Ho, Jens Honore Walther, Hoon Kiat Ng, Jiun Cai Ong, Kar Mun Pang

Publikováno v: Ong, J C, Pang, K M, Walther, J H, Ho, J-H & Ng, H K 2021, ' Effects of Ambient Oxygen and Density on Primary Soot Size under Diesel-Like Conditions Using a Lagrangian Soot Tracking Model ', S A E International Journal of Engines, vol. 14, no. 2, pp. 301-315 . https://doi.org/10.4271/03-14-02-0018

This article investigates the effect of ambient oxygen (O2) levels and ambient density on the primary soot size under diesel engine-like conditions via the Lagrangian soot tracking (LST) method. The numerical studies and soot analysis are carried out

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53ef02d20f589000728abbfdc95f1a01
https://doi.org/10.4271/03-14-02-0018