Junepyo Cha
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View article: Effects of skewing collision cells on transport properties in multiparticle collision dynamics simulations
Effects of skewing collision cells on transport properties in multiparticle collision dynamics simulations Open
Multiparticle collision dynamics (MPCD) is a mesoscale simulation technique that uses a simplified solvent to model hydrodynamic interactions. Rather than interact through pairwise forces, MPCD solvent particles undergo momentum-exchanging…
View article: NOx Emission of a Correlation between the PEMS and SEMS over Different Test Modes and Real Driving Emission
NOx Emission of a Correlation between the PEMS and SEMS over Different Test Modes and Real Driving Emission Open
The aim of this study is to verify the reliability of NOx emissions measured using Smart Emissions Measurement System (SEMS) equipment in comparison with the NOx emissions measured using certified Portable Emissions Measurement System (PEM…
View article: Analysis of Driving Dynamics Considering Driving Resistances in On-Road Driving
Analysis of Driving Dynamics Considering Driving Resistances in On-Road Driving Open
Internal combustion engine emissions are a serious worldwide problem. To combat this, emission regulations have become stricter with the goal of reducing the proportion of transportation emissions in global air pollution. In addition, the …
View article: Effects of Supply Power and Environmental Conditions on Urea Coolant Melting Phenomena in Urea Supply Lines in Vehicles
Effects of Supply Power and Environmental Conditions on Urea Coolant Melting Phenomena in Urea Supply Lines in Vehicles Open
Freezing of urea is one of the major barriers to using the urea-SCR technique in vehicles. Therefore, urea melting-time predictions under various environmental conditions are very important. Transient numerical analysis was performed to pr…
View article: Characteristics of Real-Driving CO<sub>2</sub>and NO<sub>x</sub>Emissions Compared to Test Modes on Euro-6 LDVs Equipped with SCR and LNT
Characteristics of Real-Driving CO<sub>2</sub>and NO<sub>x</sub>Emissions Compared to Test Modes on Euro-6 LDVs Equipped with SCR and LNT Open
Recently, the certification procedure for exhaust emission regulation of LDV has tested with the NEDC mode in the laboratory. But the on-road exhaust emissions exceed the standard emission limits. Therefore, it is important to analyze the …