Effect of Plateau Length on the Transformation of Internal Solitary Waves | |
---|---|
學年 | 105 |
學期 | 2 |
出版(發表)日期 | 2017-04-01 |
作品名稱 | Effect of Plateau Length on the Transformation of Internal Solitary Waves |
作品名稱(其他語言) | |
著者 | Cheng, Ming-Hung; Hsieh, Chih-Min; Hwang, Robert R.; Su, Shih-Feng |
單位 | |
出版者 | |
著錄名稱、卷期、頁數 | International Journal of Engineering and Technology 9(2), p.89-96 |
摘要 | The propagation and dissipation of internal waves over continental shelf bathymetry are complex phenomenon. The waveform would be re-generated while transmitting a submerged deep-shallow-deep topography. To study the effect of the marine topography on the evolution of an internal wave, numerical simulation is utilized to perform the flow evolution and waveform inversion of a large depression internal wave over a trapezoidal obstacle with different plateau. A finite volume based Cartesian grid method is adopted to solve the Reynolds averaged Navier-Stokes equations using a k-ε model for the turbulence closure. Numerical results reveal that the re-generated waveform does not occur due to baroclinic wave. The shorter plateau length would induce strong vortex in back of the obstacle. Moreover, the wave amplitude, vorticity and turbulent kinetic energy are dissipated significantly. However, the level of the phenomenon decreases as the plateau length is larger than the wavelength. |
關鍵字 | Internal solitary wave;RANS equation;k-ε turbulent model;flow field |
語言 | en |
ISSN | 1793-8236 |
期刊性質 | 國外 |
收錄於 | EI |
產學合作 | |
通訊作者 | |
審稿制度 | 否 |
國別 | SGP |
公開徵稿 | |
出版型式 | ,紙本 |
相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/109149 ) |