این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Journal of Applied Fluid Mechanics، جلد ۷، شماره ۱، صفحات ۱۵۵-۱۶۷
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Numerical Solution of Three-Dimensional Flow over Angled Backward-Facing Step with Raised Upper Wall
چکیده انگلیسی مقاله In the present study, results obtained from three-dimensional incompressible flow over backward-facing step in a rectangular duct using Realizable k- turbulence model are reported. Effects of step inclination angle have been investigated for =30, 45, 90 while upper wall of duct kept parallel to the bottom wall and then rose to =6. Reynolds number based on freestream velocity and step height is examined by varying its magnitude in the range of 15,000-64,000. Simulated results are presented for revealing the general flow features and reattachment lengths after a successful validation of the present work with the experimental data of Driver and Seegmiller (1985). It is found that turbulence kinetic energy increases suddenly after the step for both straight and raised upper walls and reaches its maximum at x/h=5 that consistent with the published literature. The size of reattachment lengths increases with the step inclination angle, i.e., maximum reattachment length occurs at 90 for both straight and raised upper walls. It is seen that raising the upper wall leads to longer reattachment lengths.
کلیدواژه‌های انگلیسی مقاله Backward, Reynolds, Averaged Navier, facing step, Turbulent flow, Computational fluid dynamics, Stokes
نویسندگان مقاله S. Bayraktar |
Yildiz Technical University, Department of Naval Architecture & Marine Engineering, Istanbul, 34349, Turkey

نشانی اینترنتی https://www.jafmonline.net/article_1424_8ebdfddeaf606527a8c16bb6c07070bd.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