کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1722024 1014708 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimization of parabolic bars for maximum Bragg resonant reflection of long waves
ترجمه فارسی عنوان
بهینه سازی میلههای پارابولی برای انعکاس رزونانس حداکثر موج امواج طولانی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی دریا (اقیانوس)
چکیده انگلیسی

This paper presents an analytical solution for the problem of the long wave reflection by a series of artificial bars with parabolic configuration in terms of the associated Legendre functions. It is shown that both the reflection and transmission coefficients depend solely upon the number of bars, the dimensionless bar height, the dimensionless bar width and the dimensionless bar distance. Particularly, under the Bragg resonance condition, i.e., the distance between two adjacent bars is about half of the wavelength of the normal incident waves, the analytical solution for the peak Bragg resonant reflection is obtained, which reveals that the peak Bragg resonance depends upon the number of bars, the dimensionless bar height and the dimensionless bar width. Based on this solution, the optimization of the parabolic bars is made to obtain the maximum Bragg resonance and a group of optimal curves, which may be very useful in the design of Bragg breakwaters with parabolic bars.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hydrodynamics, Ser. B - Volume 27, Issue 3, June 2015, Pages 373-382