کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8066479 1520718 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental study of the hydrodynamic force on a pipeline subjected to vertical seabed movement
ترجمه فارسی عنوان
مطالعه تجربی نیروی هیدرودینامیکی بر روی یک خط لوله تحت حرکت عمودی دریایی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی دریا (اقیانوس)
چکیده انگلیسی
Using an underwater shaking table, model tests of a free-spanning flexible submarine pipe subjected to vertical seabed movement were carried out. The fluid field adjacent to the pipe and the hydrodynamic force exerted on the pipe were measured. Based on Morison's equation, the hydrodynamic force coefficients related to earthquake, such as the drag coefficient CD and the added mass coefficient CA, were obtained by the least squares method. The effects of the Reynolds number Re, the Keulegan-Carpenter number Kc, the water depth d, and the span height e on the hydrodynamic coefficients were analyzed. The experimental results illustrate that Re and Kc have a strong effect on the hydrodynamic forces imposed on the pipeline under vertical earthquakes. The variation of the hydrodynamic coefficients with Re and Kc is fitted by a regression analysis. The calculated results from the hydrodynamic force model suitable for vertical earthquakes are in good agreement with the measured data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ocean Engineering - Volume 72, 1 November 2013, Pages 66-76
نویسندگان
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