کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7216705 | 1470221 | 2016 | 39 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Prediction of regular wave loads on a fixed offshore oscillating water column-wave energy converter using CFD
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Prediction of regular wave loads on a fixed offshore oscillating water column-wave energy converter using CFD Prediction of regular wave loads on a fixed offshore oscillating water column-wave energy converter using CFD](/preview/png/7216705.png)
چکیده انگلیسی
In this paper, hydrodynamic wave loads on an offshore stationary-floating oscillating water column (OWC) are investigated via a 2D and 3D computational fluid dynamics (CFD) modeling based on the RANS equations and the VOF surface capturing scheme. The CFD model is validated against previous experiments for nonlinear regular wave interactions with a surface-piercing stationary barge. Following the validation stage, the numerical model is modified to consider the pneumatic damping effect, and an extensive campaign of numerical tests is carried out to study the wave-OWC interactions for different wave periods, wave heights and pneumatic damping factors. It is found that the horizontal wave force is usually larger than the vertical one. Also, there a direct relationship between the pneumatic and hydrodynamic vertical forces with a maximum vertical force almost at the device natural frequency, whereas the pneumatic damping has a little effect on the horizontal force. Additionally, simulating the turbine damping with an orifice plate induces higher vertical loads than utilizing a slot opening. Furthermore, 3D modeling significantly escalates and declines the predicted hydrodynamic vertical and horizontal wave loads, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Ocean Engineering and Science - Volume 1, Issue 4, December 2016, Pages 268-283
Journal: Journal of Ocean Engineering and Science - Volume 1, Issue 4, December 2016, Pages 268-283
نویسندگان
Ahmed Elhanafi,