SAE Technical Paper Series 2003
DOI: 10.4271/2003-01-0008
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Improved Modelling of DI Diesel Engines Using Sub-grid Descriptions of Spray and Combustion

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Cited by 40 publications
(21 citation statements)
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“…The success of AMR depends largely on the accurate modeling of liquid-to-gas and gas-to-liquid couplings. In practical applications, a sufficiently fine mesh that has a grid size of 0.5-1 mm is often required for accurate engine spray simulation [15,30]. This study used two-level refinement to achieve reasonable grid resolution for engine spray application.…”
Section: Spray Simulations In a Cylindrical Combustion Chambermentioning
confidence: 99%
“…The success of AMR depends largely on the accurate modeling of liquid-to-gas and gas-to-liquid couplings. In practical applications, a sufficiently fine mesh that has a grid size of 0.5-1 mm is often required for accurate engine spray simulation [15,30]. This study used two-level refinement to achieve reasonable grid resolution for engine spray application.…”
Section: Spray Simulations In a Cylindrical Combustion Chambermentioning
confidence: 99%
“…where V y and V z are the perpendicular components of the surrounding gas phase velocity obtained from the CFD solution, and the axial component (considered as the x-direction here) is given by gas-jet theory as [9,19] Here U inj is the injection velocity of the liquid-jet which is also assumed to be the injection velocity of the gas-jet. x is the axial distance of the droplet parcel from the injector tip and r is the radial distance of the parcel from the spray axis.…”
Section: Gas-jet Modelmentioning
confidence: 99%
“…The ECFM3Z model, coupled with the spray model has proven quite effective for the simulation of conventional DI combustion systems [18]. However, due to the growing interest in HCCI combustion as an effective way to reduce raw emissions, tests were performed and showed that the existing AI model was unfit for such situations.…”
Section: Ecfm3z Combustion Modelmentioning
confidence: 99%