Title: The multiscale nature of diesel particulate filter simulation

Authors: A.G. Konstandopoulos, M. Kostoglou, N. Vlachos

Addresses: Aerosol and Particle Technology Laboratory, CERTH/CPERI, PO Box 561, 57001 Thermi, Thessaloniki, Greece. ' Aerosol and Particle Technology Laboratory, CERTH/CPERI, PO Box 561, 57001 Thermi, Thessaloniki, Greece. ' Aerosol and Particle Technology Laboratory, CERTH/CPERI, PO Box 561, 57001 Thermi, Thessaloniki, Greece

Abstract: Widespread market application of diesel particulate filters (DPFs) has been accompanied by the introduction of new filter materials and configurations in terms of cell density, wall thickness, pore size, porosity, catalyst coatings etc. Given this state-of-affairs, materials development, DPF design, system integration, regeneration control strategy optimisation and ash ageing assessment, based on a traditional design of experiments approach, become very time consuming and costly, due to the high number of tests required. This provides a privileged window of opportunity for the application of simulation tools. DPF behaviour depends strongly on the coupling of phenomena occurring over widely disparate spatial and temporal scales and the simulation approach must recognise and exploit these facts.

Keywords: ash deposits; computational materials; diesel engines; particulate filters; soot emissions; vehicle emissions; simulation; diesel emission control.

DOI: 10.1504/IJVD.2006.009676

International Journal of Vehicle Design, 2006 Vol.41 No.1/2/3/4, pp.256 - 284

Published online: 04 May 2006 *

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