Numerical and Experimental Analysis of the Flow Field within a Lean NOx Trap for Diesel Engines University of Calabria

Format:

Conference/Event

Author/Creator:

Algieri, Algieri, author.

Contributor:

Bova, Sergio

De Bartolo, Carmine

Nigro, Alessandra

Conference Name:

10th International Conference on Engines & Vehicles (2011-09-11 : Naples, Italy)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2011

Summary:

The present study aims at analyzing the flow field within a Lean NOx Trap (LNT). To this purpose a twofold approach based on the synergic use of numerical and non-intrusive experimental techniques was adopted. The measurements were carried out at a steady flow rig in terms of global performances and local velocity measurements. In particular, mass flow rates and pressure drops were used to define the global fluid dynamic efficiency of the system, while the Laser Doppler Anemometry (LDA) technique was employed to determine the flow field within the aftertreatment apparatus. At the same time, a finite volume CFD code was adopted for the numerical analysis. The comparison between experimental and numerical data displayed a good agreement in terms of global and local quantities. Specifically, the numerical code well-reproduced the main structure within the emission control system. Furthermore, the analysis showed the influence of the trap on the flow field and the pressure drop distribution through the aftertreatment device

Notes:

Vendor supplied data

Publisher Number:

2011-24-0180

Access Restriction:

Restricted for use by site license