کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8256871 | 1534264 | 2016 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A new two-layer Boussinesq model for coastal waves from deep to shallow water: Derivation and analysis
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
We derive a new two-layer Boussinesq model with high accuracy in linear and nonlinear properties and in interior kinematic property from deep to shallow water. This model is formulated in terms of computational horizontal and vertical velocities defined in each layer. The highest derivative in the equations is limited to three, which is convenient for numerical discretization. Stokes-type expansions are used to theoretically analyze the linear and nonlinear properties of the new two-layer Boussinesq model. The dispersive coefficients involved in the governing equations are determined by minimizing the integral error between the linear wave celerity of the Boussinesq model and the analytical solution. Shoaling coefficients are also optimized to expand the application range of the model to the mildly varying bathymetries. The most attractive aspect of this work is that the newly developed two-layer model exhibits high accuracy in linear, nonlinear, shoaling, and kinematic properties from extremely deep to shallow water. The analyses show that the resultant model is applicable to up to khâ 53 in linear dispersion, up to khâ 30 in the second nonlinear property within 1% error, and up to 0
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Wave Motion - Volume 67, December 2016, Pages 1-14
Journal: Wave Motion - Volume 67, December 2016, Pages 1-14
نویسندگان
Zhongbo Liu, Kezhao Fang,