Visualization of the Gas Flow Field within a Diesel Particulate Filter Using Magnetic Resonance Imaging

A. P. E. York, T. C. Watling, N. P. Ramskill, L. F. Gladden, A. J. Sederman, A. Tsolakis, Jose Martin Herreros, I. Lefort

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Abstract

In recent years magnetic resonance imaging (MRI) has been shown to be an attractive method for fluid flow visualization. In this work, we show how MRI velocimetry techniques can be used to non-invasively investigate and visualize the hydrodynamics of exhaust gas in a diesel particulate filter (DPF), both when clean and after loading with diesel engine exhaust particulate matter. The measurements have been used to directly measure the gas flow in the inlet and outlet channels of the DPF, both axial profiles along the length and profiles across the channel diameter. Further, from this information we show that it is possible to indirectly ascertain the superficial wall-flow gas velocity and the soot loading profiles along the filter channel length.
Original languageEnglish
Article number2015-01-2009
JournalSAE Technical Paper Series
DOIs
Publication statusPublished - 1 Sep 2015

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    York, A. P. E., Watling, T. C., Ramskill, N. P., Gladden, L. F., Sederman, A. J., Tsolakis, A., ... Lefort, I. (2015). Visualization of the Gas Flow Field within a Diesel Particulate Filter Using Magnetic Resonance Imaging. SAE Technical Paper Series, [2015-01-2009]. https://doi.org/10.4271/2015-01-2009