期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
卷号：3
期号：7
页码：14958
出版社：S&S Publications
摘要：Swirling flow is required for controlling and achieve stabilized flames in combustion chamber. Swirlingflow has large effect on flow field for getting stabilised and proper combustion intensity by controlling the mixing ofthe mixture. The core objective of this study is to present the details of the experimental analysis of an axisymmetricswirler model. Swirler with 8 blades at 45° rotating vane is studied experimentally. Also the effect of guide vane atdifferent inlet and outlet angle on the rotating swirler is studied experimentally. An overlap angle of 30° is providedbetween the vanes for the proper guidance of the flow through swirler. A hemi spherical bluff body is attached to thehub in order to overcome the inlet flow field distortion. A five-hole probe has been used with traversing mechanismfor measurement of flow. The recirculation velocities at the centre core and corner regions are well captured with thefive-hole probe. Measurements along the entire length of the model at different stations, allow the determination ofaxial mean velocity component and pressure field parameters, which provide comprehensive information to aid andunderstand such complex recirculation flows. Flow field characteristics downstream of the swirler at different axiallocations are examined in detail. The recirculation length and width are found to be strongly dependent on the amountof turbulence created by the vane swirler. Experimental analysis gives complete visualization of swirl flow with limitsof boundary for mixing of flow.
