| Item type |
デフォルトアイテムタイプ（フル）(1) |
| 公開日 |
2007-10-28 |
| タイトル |
|
|
タイトル |
強風により発生する砕波波列に関する実験的研究 |
|
言語 |
ja |
| タイトル |
|
|
タイトル |
Experimental Studies on Breaking Wave Trains generated by Strong Winds on Shallow Water |
|
言語 |
en |
| 作成者 |
筒井, 茂明
土屋, 義人
Tsutsui, Shigeaki
Tsuchiya, Yoshito
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Breaking wave trains |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Wind waves |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Wind-induced currents |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
When strong winds blow over shallow water for a long duration, wind induced currents are generated. At the same time wind waves are evolved on them untill the waves break such as white cups. The heigher the wind wave heights evolve, the more the breaking of waves of particular wave heights and periods resonant with the wind speed may become predominant. At this circumstance the wind acts on the waves as a driving force. As the result of these interaction between winds and waves, we may often observe progressive breaking waves without deformation of their profiles, The breaking phenomena are named the 'Breaking wave trains', The waves are vitally important in studying shore processes, as they deeply concern with near - shore currents and sand drifts in a surf zone.\nHydraulic experiments, as the first step to find out properties of the breaking wave trains, were carried out with a recirculating wind wave tank which can reproduce wind - generated random waves accompanied with currents. Wave periods and heights of breaking wave trains correspond to those obtained from the peak frequencies of wind wave power spectra and significant wave heights. The wind - induced currents have an important role in the mass transport in the wave trains. Because of the strong currents, the wave field may be considered as a unidirectional flow, and there exists a critical depth which is nearly equal to the mean depth of the breaking wave trains in a reference frame moving with the wave trains at a speed of the wave celerity. The phase of the wave crest is, hydraulically speaking, subcritical, and that of the wave trough is supercritical in this steady flow system. |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
紀要論文 |
| 出版者 |
|
|
出版者 |
琉球大学工学部 |
|
言語 |
ja |
| 言語 |
|
|
言語 |
jpn |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
departmental bulletin paper |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 識別子 |
|
|
識別子 |
http://hdl.handle.net/20.500.12000/2209 |
|
識別子タイプ |
HDL |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0389-102X |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AN0025048X |
| 収録物名 |
|
|
収録物名 |
琉球大学工学部紀要 |
|
言語 |
ja |
| 書誌情報 |
号 23,
p. 21-33
|
No23p21.pdf
