Non-Linear Water Wave Transformation Model
Journal Title: International Journal of engineering Research and Applications - Year 2018, Vol 8, Issue 3
Abstract
This Research Develops One Dimension Shoaling And Breaking Model And Refraction-Diffraction Water Wave Model Using Non-Linear Potential Flow Water Wave That Are Formulated In Non-Linear Condition, I.E. The Formulations Were Done Without Assumptions Small Wave Amplitude And Deep Water Conditions. Also The Formulations Were Done For Sloping Bottom So That The Potential Flow Contains Shoaling Phenomenon. Breaking Phenomenon Also Exists At The Potential Flow That Can Be Stated With An Equation Similar In The Form To Miche’s Breaking Criteria. The Effect Of Non-Linearity In Wave Amplitude Is Showed In The Wave Length, Where Wave Length Is Not Only Affected By Wave Period And Water Depth But Also By It’s Amplitude. The Result Of Shoaling And Breaking Model Shows Conformity With The Result Of A Number Of Researchers Connecting Initial Waves Height And Wave Length In Deep Water With Breaking Wave Height.Based On The One Dimension Shoaling And Breaking Model, The Refraction-Diffraction Model Is Developed. The Execution Of Refraction-Diffraction Model In A Bay Shaped Bathymetry Shows A Phenomenon Of Wave Energy Spread, Whereas Execution Over Submerged Island Bathymetry Shows A Concentration Of Wave Energy At The Island Center. Those Two Phenomena Show That RefractionDiffraction, Shoaling And Breaking Phenomena Can Be Simulated Well By The Model. Index Terms: Nonlinear Water Wave Potential Flow, Shoaling And Breaking Water Wave Model , Reffraction, Diffraction And Breaking Of Water Wave Model
Authors and Affiliations
Syawaluddin Hutahaean
Keywords
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