THERMAL SCIENCE

International Scientific Journal

Qirong Yang

,

Tiechen Zhang

,

Menghan Li

,

Xiaori Liu

SIMULATING FLOW AND HEAT TRANSFER IN A VARIETY OF DIESEL PARTICULATE FILTER POROUS STRUCTURES USING LATTICE BOLTZMANN METHOD

ABSTRACT
Particulate matter has important influences on premature human mortality. Diesel particulate filter is one of the most effective means to reduce particulate matter in exhaust gas. In order to study the 3-D flow characteristics of diesel particulate filter porous structure, lattice Boltzmann method is used to study the flow and heat transfer characteristics of different structures. In some software, the spherical structure is used as diesel particulate filter porous structure. In paper, the spherical structure, the quartet structure generation set structure, and the computer tomography technique structure are constructed. The computer tomography technique structure is constructed by the serial sections of diesel particulate filter porous structure. The flow and heat transfer characteristics in different structures were simulated by lattice Boltzmann method. The 3-D computer tomography technique structure is constructed by superposing the serial section data of diesel particulate filter. The results show that the pressure gradient and temperature gradient of structures are greatly affected by the structure. The pressure gradient and temperature gradient of the spherical structure is the lowest. The spherical structure and the quartet structure generation set structure are different from the porous structure of diesel particulate filter in pressure gradient and temperature gradient. By comparing different structures, it can be seen that although the pressure gradients of the computer tomography technique structure and the quartet structure generation set structure are similar, the temperature gradient of the two structures are more different.
KEYWORDS
Lattice Boltzmann Method, diesel particulate filter, porous structure, Flow and heat characteristics, three-dimensional
PAPER SUBMITTED: 2021-11-15
PAPER REVISED: 2022-03-02
PAPER ACCEPTED: 2022-03-16
PUBLISHED ONLINE: 2022-04-09
DOI REFERENCE: https://doi.org/10.2298/TSCI211115043Y
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2022, VOLUME 26, ISSUE Issue 6, PAGES [4583 - 4593]
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Simulating flow and heat transfer in a variety of diesel particulate filter porous structures using lattice Boltzmann method

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence