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http://dx.doi.org/10.3795/KSME-B.2004.28.9.1133

About the Shape Optimization of Ex-Manifold Diffuser  

Jo, Sok-Hyun (현대자동차 선행해석팀)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.28, no.9, 2004 , pp. 1133-1138 More about this Journal
Abstract
Shape optimization method was coupled with a conventional CFD analysis to find the optimal shape of ex-manifold diffuser which decreases the maldistribution of flow above the catalyst. Shape optimization results show that flow uniformity above the catalyst was increased about 28% fur the axi-symmetric case and about 18% for the asymmetric case. The axi-symmetric type can be applied to the diffuser of under floor catalyst and the asymmetric type can be applied to the diffuser of close coupled catalyst.
Keywords
Shape Optimization; Flow Uniformity;
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