کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1720030 1520261 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Boussinesq modelling of  solitary wave and N-wave runup on coast
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی دریا (اقیانوس)
پیش نمایش صفحه اول مقاله
Boussinesq modelling of  solitary wave and N-wave runup on coast
چکیده انگلیسی


• We developed a shock-capturing Boussinesq-type model.
• Runup of solitary waves and N-waves was simulated and compared.
• Both non-breaking waves and breaking waves were modelled.
• The results generally agree with the analytical runup laws.
• A Navier–Stokes solver was used to assess this model.

A total variation diminishing Lax–Wendroff scheme has been applied to numerically solve the Boussinesq-type equations. The runup processes on a vertical wall and on a uniform slope by various waves, including solitary waves, leading-depression N-waves and leading-elevation N-waves, have been investigated using the developed numerical model. The results agree well with the runup laws derived analytically by other researchers for non-breaking waves. The predictions with respect to breaking solitary waves generally follow the empirical runup relationship established from laboratory experiments, although some degree of over-prediction on the runup heights has been manifested. Such an over-prediction can be attributed to the exaggeration of the short waves in the front of the breaking waves. The study revealed that the leading-depression N-wave produced a higher runup than the solitary wave of the same amplitude, whereas the leading-elevation N-wave produced a slightly lower runup than the solitary wave of the same amplitude. For the runup on a vertical wall, this trend becomes prominent when the wave height-to-depth ratio exceeds 0.01. For the runup on a slope, this trend is prominent before the strong wave breaking occurs.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Ocean Research - Volume 42, August 2013, Pages 144–154
نویسندگان
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