Assessment of the Predictive Capabilities of a Combustion Model for a Modern Common Rail Automotive Diesel Engine

Piano, Andrea; Millo, Federico; Boccardo, Giulio; Rafigh, Mahsa; Gallone, Alessandro; Rimondi, Marcello

doi:10.4271/2016-01-0547

Cited by 36 publications

(15 citation statements)

References 12 publications

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“…The 1D model of the entire engine runs separately respect to the two steps of the 3D simulations, to properly characterize the in-cylinder multidimensional simulation with suitable time dependent BCs in terms of pressure, temperature and species concentration. The entire engine cycle is simulated by means of a 1D complete engine model; in this work, a commercially available software GT-SUITE was selected and the validation results have been already presented in [22,23]. Results from this preliminary phase are used to initialize the first step of the 3D numerical analysis: a so-called full cylinder "cold flow" simulation.…”

Section: Methodsmentioning

confidence: 99%

Development and Assessment of an Integrated 1D-3D CFD Codes Coupling Methodology for Diesel Engine Combustion Simulation and Optimization

et al. 2020

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In this paper, an integrated and automated methodology for the coupling between 1D- and 3D-CFD simulation codes is presented, which has been developed to support the design and calibration of new diesel engines. The aim of the proposed methodology is to couple 1D engine models, which may be available in the early stage engine development phases, with 3D predictive combustion simulations, in order to obtain reliable estimates of engine performance and emissions for newly designed automotive diesel engines. The coupling procedure features simulations performed in 1D-CFD by means of GT-SUITE and in 3D-CFD by means of Converge, executed within a specifically designed calculation methodology. An assessment of the coupling procedure has been performed by comparing its results with experimental data acquired on an automotive diesel engine, considering different working points, including both part load and full load conditions. Different multiple injection schedules have been evaluated for part-load operation, including pre and post injections. The proposed methodology, featuring detailed 3D chemistry modeling, was proven to be capable assessing pollutant formation properly, specifically to estimate NOx concentrations. Soot formation trends were also well-matched for most of the explored working points. The proposed procedure can therefore be considered as a suitable methodology to support the design and calibration of new diesel engines, due to its ability to provide reliable engine performance and emissions estimations from the early stage of a new engine development.

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Section: Methodsmentioning

confidence: 99%

Development and Assessment of an Integrated 1D-3D CFD Codes Coupling Methodology for Diesel Engine Combustion Simulation and Optimization

et al. 2020

Self Cite

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show abstract

“…To address those requirements a coupled 1D and 3D approach was used, and the adopted methodology is summarized in the block diagram of Figure 3. The first step is a simulation of the entire engine cycle with a 1D complete engine model: in this work, a commercially available software GT-SUITE was selected and the validation results have been already validated in [15,16]. Results from this preliminary phase are used to initialize the first step of the 3D numerical analysis: a so-called full cylinder "cold flow" simulation.…”

Section: Introductionmentioning

confidence: 99%

Development and Assessment of an Integrated 1D-3D CFD Codes Coupling Methodology for Diesel Engine Combustion Simulation and Optimization

Millo¹,

Piano²,

Paradisi³

et al. 2019

Preprint

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In this paper an integrated methodology for the coupling between 1D- and 3D-CFD simulation codes is presented, which has been developed to support the design and calibration of new diesel engines. The aim of the proposed methodology is to couple 1D engine models, which may be available in the early-stage engine development phases, with 3D predictive combustion simulations, in order to obtain reliable estimates of engine performance and emissions for newly designed automotive diesel engines. The coupling procedure features simulations performed in 1D-CFD by means of GT-SUITE and in 3D-CFD by means of Converge, executed within a specifically designed calculation methodology. An assessment of the coupling procedure has been performed by comparing its results with experimental data acquired on an automotive Diesel engine, considering different working points including both part load and full load conditions. Different multiple injection schedules have been evaluated for part-load operation, including pre and post injections. The proposed methodology, featuring detailed 3D chemistry modeling, was proven to be capable to properly assess pollutant formation, specifically to estimate NOx concentrations. Soot formation trend was also well-matched for most of the explored working points. The proposed procedure can therefore be considered as a suitable methodology to support the design and calibration of new Diesel engines, thanks to its ability to provide reliable engine performance and emissions estimations from the early-stage of a new engine development.

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“…[12] Considering the high computational cost demands for 3D modeling, efficient and reliable simulation models need to be developed and calibrated. [4] Gamma Technologies has been developing simulation tools for engine and vehicle simulation. GT-Suite software, developed by Gamma Technologies is one of the leading simulation tools used for prediction of engine performance, emissions and acoustic characteristics.…”

Section: Introductionmentioning

confidence: 99%

“…Simulation study is one of the approaches to investigate the extent and effects of gas charging and EGR on the performance of the engine. With the rapid improvements over the past decade in the field of engine simulation and modeling, it has become an efficient, economical and reliable approach[4].GT-Suite, one of the widely-used Vehicle and Engine Simulation tools in the industries, provides the capabilities to calculate the combustion rate in Internal combustion engines for conventional as well as dual-fuel engines. Current research work uses GT-Suite software to study the effect of gas charging and EGR on a Cummins 2010 ISB 6.7 L engine in dual-fuel mode.…”

mentioning

confidence: 99%

Simulation Study on Effect of Gas Charging and Egr in a Dual-Fuel Engine

Gorthy¹

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Assessment of the Predictive Capabilities of a Combustion Model for a Modern Common Rail Automotive Diesel Engine

Cited by 36 publications

References 12 publications

Development and Assessment of an Integrated 1D-3D CFD Codes Coupling Methodology for Diesel Engine Combustion Simulation and Optimization

Development and Assessment of an Integrated 1D-3D CFD Codes Coupling Methodology for Diesel Engine Combustion Simulation and Optimization

Development and Assessment of an Integrated 1D-3D CFD Codes Coupling Methodology for Diesel Engine Combustion Simulation and Optimization

Simulation Study on Effect of Gas Charging and Egr in a Dual-Fuel Engine

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