کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8058647 1520082 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development of the ball-spine inverse design algorithm to swirling viscous flow for performance improvement of an axisymmetric bend duct
ترجمه فارسی عنوان
الگوریتم طراحی الگوریتم معکوس توپ و ستون فقرات به چرخش جریان چسبناک برای بهبود عملکرد یک مجرای خم محوری
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
چکیده انگلیسی
In the present study, the ball-spine inverse design algorithm is developed for swirling viscous flow regime to improve the performance of an axisymmetric 90-degree bend duct between the radial and axial diffuser of a centrifugal compressor. Performance improvement of the 90-degree bend duct is accomplished to increase its pressure recovery without separation. First, the effects of geometric parameters on flow separation are numerically studied and a safe margin is obtained for prevention of flow separation and stall. Then, the safe margin is enlarged to reach a higher pressure recovery via the shape modification of duct walls. The shape modification process integrates the BSA as shape modification algorithm and an axisymmetric flow analysis code as flow solver. Shape modification process is carried out by improving the current wall pressure distribution and applying it to the inverse design algorithm. Results show merits and robustness of the BSA for duct design in swirling viscous flow regime whereby the pressure recovery coefficient of the 90-degree bend duct increases up to 7%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aerospace Science and Technology - Volume 52, May 2016, Pages 181-188
نویسندگان
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