Browse Publications Technical Papers 2005-01-0689
2005-04-11

Thermo-Fluid Dynamic Modeling and Experimental Investigation of a Turbocharged Common Rail DI Diesel Engine 2005-01-0689

The paper describes the results of a parallel 1D thermo-fluid dynamic simulation and experimental investigation of a DI turbocharged Diesel engine. The attention has been focused on the overall engine performances (air flow, torque, power, fuel consumption) as well as on the emissions (NO and particulate) along the after-treatment system, which presents a particulate filter.
The 1D research code GASDYN for the simulation of the whole engine system has been enhanced by the introduction of a multi-zone quasi-dimensional combustion model for direct injection Diesel engines. The effect of multiple injections is taken into account (pilot and main injection). The prediction of NO and soot has been carried out respectively by means of a super-extended Zeldovich mechanism and by the Hiroyasu kinetic approach.
Moreover, a 1D model for the calculation of the filtration process occurring in the particulate trap has been embedded in the numerical model, to predict the fluid dynamic behavior of the DPF. The fluid-dynamic model for the trap is based on the assumption that the pressure drop, due to the Darcian flow, can be described one-dimensionally by an equivalent friction process.
An experimental investigation has been carried out on a 1.9L JTD Fiat-GM Powertrain Diesel engine, to study the behavior of the DPF under different operating conditions, in order to provide a large set of experimental data for the simulation code validation.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Optimization of a Large Diesel Engine via Spin Spray Combustion*

2005-01-0916

View Details

TECHNICAL PAPER

Development of a Mixing and Combustion Zero-Dimensional Model for Diesel Engines

2006-01-1382

View Details

TECHNICAL PAPER

CFD Modeling of Gas Exchange, Fuel-Air Mixing and Combustion in Gasoline Direct-Injection Engines

2019-24-0095

View Details

X