부산대학교 도서관

In automobile exhaust systems, catalytic converters have become essential in reducing environmental pollutions and contaminations. The goal of our research is to simultaneously reduce the pressure loss and improve the flow distribution under spatial constraints. In our past studies, the possibilities of two types of flow deflectors with shell structures, were investigated. These deflectors can reduce the pressure loss and improve the flow distribution in steady flow and pulsation flow. However, in these studies, we have not revealed the effect of fluctuation component of pulsating flow. So, in this study, we find out flow distribution and wave forms at each instantaneous time of pulsating flow by visualization of the flow passing through the monolith and using PIV technique at the behind of catalytic monolith.