期刊名称：International Journal of Environmental Science and Development
印刷版ISSN：2010-0264
出版年度：2011
卷号：2
期号：3
页码：239-247
DOI：10.7763/IJESD.2011.V2.131
摘要：Stringent emission regulations around the world necessitate the use of high-efficiency catalytic converters in vehicle exhaust systems.Therefore, determining the optimum geometry of the honeycomb monolith structure is necessary.This structure requires a high surface area for treating gases while maintaining a low pressure drop in the engine.In the present paper, an adapted sub-grid scale modeling is used to predict the pressure loss of square- and hexagonal-cell-shaped honeycomb monoliths.This sub-grid scale modeling represents the actual variations in the pressure drop between the inlet and outlet for various combinations of wall thickness and cell density.A comparison is made between the experimental and numerical results established in literature.The present approach is found to provide better and more comprehensive results than the single channel technique.
