http://scholars.ntou.edu.tw/handle/123456789/20459
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Cheng, Ming-Hung | en_US |
dc.contributor.author | Hsieh, Chih-Min | en_US |
dc.contributor.author | Hsu, John R-C. | en_US |
dc.contributor.author | Hwang, Robert R. | en_US |
dc.date.accessioned | 2022-02-17T03:56:40Z | - |
dc.date.available | 2022-02-17T03:56:40Z | - |
dc.date.issued | 2017-01-15 | - |
dc.identifier.issn | 0029-8018 | - |
dc.identifier.uri | http://scholars.ntou.edu.tw/handle/123456789/20459 | - |
dc.description.abstract | A permeable seabed may influence the evolution of an internal solitary wave propagating on a continental shelf and nearshore. In order to study the porous effect, numerical simulations are performed to investigate the flow field and waveform inversion of a large depression ISW propagating over a porous trapezoidal obstacle. A finite volume based Cartesian grid method is adopted to solve the Reynolds averaged Navier-Stokes equations using a kappa-epsilon model for the turbulent closure and porous media model together. Numerical results reveal that waveform inversion weakens significantly, as the porosity of the obstacle increases, except when porosity n(f)< 0.2. At the same time, the magnitude of vorticity and turbulent energy decrease remarkably due to acute reduction of the production term induced by percolation and wave-pore interaction. Moreover, a skewed hump shaped relation appears between the maximum vorticity and the porosity. For transmitted wave energy on a horizontal plateau, total energy may decrease as n(f) < 0.2 but increases moderately while n(f)> 0.2 during a strong wave-obstacle interaction. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | en_US |
dc.relation.ispartof | OCEAN ENG | en_US |
dc.subject | SLOPE-SHELF TOPOGRAPHY | en_US |
dc.subject | SEDIMENT RESUSPENSION | en_US |
dc.subject | NUMERICAL-SIMULATION | en_US |
dc.subject | BREAKING | en_US |
dc.subject | GENERATION | en_US |
dc.subject | FLOW | en_US |
dc.subject | PERMEABILITY | en_US |
dc.subject | BREAKWATERS | en_US |
dc.subject | PYCNOCLINE | en_US |
dc.subject | EVOLUTION | en_US |
dc.title | Effect of porosity on an internal solitary wave propagating over a porous trapezoidal obstacle | en_US |
dc.type | journal article | en_US |
dc.identifier.doi | 10.1016/j.oceaneng.2016.11.067 | - |
dc.identifier.isi | WOS:000393000700012 | - |
dc.relation.journalvolume | 130 | en_US |
dc.relation.pages | 126-141 | en_US |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en_US | - |
item.grantfulltext | none | - |
item.fulltext | no fulltext | - |
item.openairetype | journal article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
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