کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1725312 | 1520685 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A precise computation method of transient free surface Green function
ترجمه فارسی عنوان
یک روش محاسبه دقیق از سطح آزاد موقت عملکرد سبز
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی دریا (اقیانوس)
چکیده انگلیسی
The transient free surface Green function (TFSGF) is of great importance in the prediction of unsteady ship motions with forward speed. In this numerical approach, the wave part of the TFSGF and its spatial derivatives are obtained by solving the fourth-order ordinary differential equations (ODEs) based on the semi-analytical Precise Integration Method (PIM). Theoretical derivations show that in fact the horizontal and vertical derivatives can be expressed by TFSGF, which means only one ODE needs to be solved. The stability and accuracy of this method is demonstrated by the comparison with other method as well as the analytical solutions. Additionally, the proposed method is applied to solve the radiation problem of a floating hemisphere at zero speed using the time domain Rankine-Green method. The numerical hydrodynamic coefficients show good agreement with the analytical solutions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ocean Engineering - Volume 105, 1 September 2015, Pages 318-326
Journal: Ocean Engineering - Volume 105, 1 September 2015, Pages 318-326
نویسندگان
Zhi-Fu Li, Hui-Long Ren, Xiao-Wang Tong, Hui Li,