کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1720338 | 1014248 | 2011 | 11 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Numerical investigation on the performance of Wells turbine with non-uniform tip clearance for wave energy conversion Numerical investigation on the performance of Wells turbine with non-uniform tip clearance for wave energy conversion](/preview/png/1720338.png)
The performance of a Wells turbine with various non-uniform tip clearances was investigated using computational fluid dynamics (CFD). The investigation was performed on numerical models of a NACA0020 blade profile under steady flow conditions. The performance of turbines with uniform and non-uniform tip clearances was compared. The results were also compared with experimental results in literature. It was shown that the performance of turbine with non-uniform tip clearance is similar with that of turbine with uniform one in terms of torque coefficient, input power coefficient, and efficiency. However, the turbine with non-uniform tip clearance seems to have a preferable overall performance. An investigation on the flow-field around the turbine blade was performed in order to explain the phenomena.
Journal: Applied Ocean Research - Volume 33, Issue 4, October 2011, Pages 321–331