کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8059322 1520231 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical investigation of vortex-induced vibration of a riser with internal flow
ترجمه فارسی عنوان
بررسی عددی ارتعاش ناشی از گرداب یک رواناب با جریان داخلی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی دریا (اقیانوس)
چکیده انگلیسی
Vortex-induced vibration (VIV) of a riser considering both internal and external flows is investigated numerically. The model is firstly verified based on the comparison of the experimental data and numerical results. Then the internal flow is taken into account while VIV of a riser subjected to external flow in the subcritical regime of the Reynolds number is studied. Correspondingly, typical VIV characteristics such as the dominating mode and frequency in the in-line (IL) and cross-flow (CF) directions are analyzed, as well as the Root Mean Square (RMS) of the amplitudes, standing and traveling waves for the IL and CF responses. The results indicate that the IL and CF dominating modes are obviously influenced by the internal flow while the dominating frequency and RMS in both IL and CF directions are slightly changed during the investigation. The dominating modes for both IL and CF responses increase with the internal flow velocity increasing. Moreover, conspicuous traveling wave response is detected for both IL and CF responses while the internal flow interacts with the external flow for VIV.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Ocean Research - Volume 72, March 2018, Pages 110-121
نویسندگان
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