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- W2352182115 abstract "Large eddy simulation (LES) turbulence model and several droplet breakup models have been implemented into the KIVA-3V code to investigate the atomization and evaporation processes of diesel spray. Based on the experimental results under different conditions,four breakup models,including Taylor Analogy Breakup (TAB) ,Modified TAB (MTAB) ,Cascade Atomization and Drop Breakup (CAB) and Kelvin-Helmholtz Rayleigh-Taylor (KH-RT) ,were compared in terms of liquid and vapor distributions. Results show that KH-RT model gives better performance in prediction of liquid and vapor penetration and shape of vapor distribution than other three models. Liquid penetration is under-estimated and evaporation rate is significantly over-estimated by TAB model due to the smaller droplet diameter after breakup. Compared to KH-RT model,similar liquid penetration are obtained by MTAB and CAB models, but the equivalence ratio is under-predicted by MTAB and CAB models. When KH-RT model is used,the comparison between Reynolds-averaged Navier-Stokes (RANS) model and LES model shows that RANS model obviously under-estimates vapor penetration length and hardly predict the intermittency and irregular vortical structure in the spray periphery. However,these features can be well captured by LES model." @default.
- W2352182115 created "2016-06-24" @default.
- W2352182115 creator A5038776919 @default.
- W2352182115 date "2010-01-01" @default.
- W2352182115 modified "2023-10-17" @default.
- W2352182115 title "Influence of Breakup Model on Modeling Diesel Spray with Large Eddy Simulation" @default.
- W2352182115 hasPublicationYear "2010" @default.
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