کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1720939 1520386 2012 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Accurate solution to diffraction around a modified V-shaped breakwater
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی دریا (اقیانوس)
پیش نمایش صفحه اول مقاله
Accurate solution to diffraction around a modified V-shaped breakwater
چکیده انگلیسی

In 1999, the U.S. Army has launched a revolutionary concept in V-shaped breakwaters to reduce the impact of elevated sea states during humanitarian (or military) operations. Barriers of this type provide a sheltered region in the interior of the V. Herein a modified V-shaped model, intended as a supplement to the original concept, is presented. The corresponding linearized diffraction problem is solved by an effective technique and then an improved series solution is newly derived. Appropriate basis functions are selected to correctly capture the singular behaviors in velocity fields near the salient corners and cusped edges of the breakwater. Comparisons with the results of the usual eigenfunction expansion method reveal the efficiency and accuracy of the present approach. Influences of associated parameters on the waveheight distributions are illustrated and discussed. The quickly convergent method proposed herein not only provides a reliable benchmark for assessing the results of other numerical methods, but also has a promising potential to attack problems implicating troublesome tip and corner singularities.


► A modified V-shaped breakwater is presented conceptually.
► Application of a rapidly convergent technique to wave diffraction problems.
► Employment of singular basis functions capturing tip and corner singularities.
► Improvement in the computing efficiency of conventional eigenfunction methods.
► Results obtained herein can serve as a supplementary testbed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Coastal Engineering - Volume 68, October 2012, Pages 56–66
نویسندگان
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