این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Journal of Applied Fluid Mechanics، جلد ۱۷، شماره ۹، صفحات ۱۸۴۴-۱۸۵۹
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Experimental and Numerical Investigation for Predicting the Performance of Voluteless Centrifugal Fan Rotors
چکیده انگلیسی مقاله A better understanding of the flow field is crucial for improving the design of a turbomachine. In this work we investigate the performance of voluteless centrifugal fan rotors. The study includes two parts: experiments and numerical simulations through Computational Fluid Dynamics (CFD) techniques. Our test system allows the analysis of the flow behavior of centrifugal fan rotors maintaining the meridional shape without making substantial changes to their internal structure, but with different blade shapes, sizes, and blade numbers. To avoids irregular interference with the rotor flow from external components such as the collector a radial channel composed by two parallel discs was placed concentrically on the rotor axis at its outer periphery with special interest in measuring flow characteristics at the rotor outlet with a reliable accuracy. As an application case a typical centrifugal fan rotor with ten blades of single curvature in the circular arc shape has been investigated. Two types of measuring systems were used: one, with an aerodynamic probe located in the centrifugal rotor outlet and, the other, with a load cell for measuring the rotor shaft power. A comparison of the results by these two measuring arrangements shows some important characteristics, such as the phenomenon of the flow recirculation within the rotor. The experimental performance curves related to non-dimensional flow such as the slip factor, and pressure coefficient, revealed good matching with numerical simulations, highlighting the remarkable reliability of our experimental setup.
کلیدواژه‌های انگلیسی مقاله CFD analysis,Centrifugal rotor,Performance test,Experimental techniques,SST k-w turbulence model
نویسندگان مقاله D. O. Maestre Di Cioccio |
Federal University of Itajubá, Itajubá, Minas Gerais, Zip Code 37500-903, Brazil

W. De Oliveira |
Federal University of Itajubá, Itajubá, Minas Gerais, Zip Code 37500-903, Brazil

R. G. Ramirez Camacho |
Federal University of Itajubá, Itajubá, Minas Gerais, Zip Code 37500-903, Brazil

نشانی اینترنتی https://www.jafmonline.net/article_2460_bb8225b716ba583ecf70f5bd934e5661.pdf
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات