کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8060250 | 1520421 | 2016 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evaluation of the swirl characteristics of a tidal stream turbine wake
ترجمه فارسی عنوان
ارزیابی ویژگی های چرخشی از وقوع توربین جزر و مدی
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کلمات کلیدی
چرخش ویژگی های جریان، توربین های توربین،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
چکیده انگلیسی
Using computational fluid dynamics the paper describes the characteristics of velocities, pressure drop, viscosity and swirl number of 2, 3 and 4 bladed TSTs. To provide confidence in the results the characteristics are compared to the findings in the literature for a set of generic swirl generators. The swirl numbers for the TSTs in a 3.08Â m/s tidal (plug) flow were found to be between 0.14 and 0.28, which describes a weak or very weak swirl flow. Whilst the characteristics are in agreement with theory it also means that the swirl component of the wake is not coupled with the axial component and cannot be used to estimate the wake length. However, peak swirl number for the 4 bladed turbine is close to the threshold of 0.3 at which axial velocity starts to become coupled with tangential velocity and therefore wake recovery may be related to S for some turbine designs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Marine Energy - Volume 14, June 2016, Pages 198-214
Journal: International Journal of Marine Energy - Volume 14, June 2016, Pages 198-214
نویسندگان
C.E. Morris, D.M. O'Doherty, A. Mason-Jones, T. O'Doherty,