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DIRECTIONAL WAVEMAKER: THEORY AND E...

WU, YUNG-CHAO.

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DIRECTIONAL WAVEMAKER: THEORY AND EXPERIMENT.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	DIRECTIONAL WAVEMAKER: THEORY AND EXPERIMENT./
作者:	WU, YUNG-CHAO.
面頁冊數:	169 p.
附註:	Source: Dissertation Abstracts International, Volume: 46-09, Section: B, page: 2991.
Contained By:	Dissertation Abstracts International46-09B.
標題:	Physical Oceanography. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=8525295

DIRECTIONAL WAVEMAKER: THEORY AND EXPERIMENT.
WU, YUNG-CHAO.

DIRECTIONAL WAVEMAKER: THEORY AND EXPERIMENT. - 169 p.

Source: Dissertation Abstracts International, Volume: 46-09, Section: B, page: 2991.

Thesis (Ph.D.)--University of Delaware, 1985.

The three-dimensional structure of linear and nonlinear waves generated by infinite length and the finite length three-dimensional wavemakers is developed theoretically. The analytic solution of the wave field generated by a finite length wavemaker is very complex, therefore, a parabolic model is introduced to solve this problem.Subjects--Topical Terms:

1019163
Physical Oceanography.

DIRECTIONAL WAVEMAKER: THEORY AND EXPERIMENT.
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100 1 $a WU, YUNG-CHAO. $3 1270370
245 1 0 $a DIRECTIONAL WAVEMAKER: THEORY AND EXPERIMENT.
300 $a 169 p.
500 $a Source: Dissertation Abstracts International, Volume: 46-09, Section: B, page: 2991.
502 $a Thesis (Ph.D.)--University of Delaware, 1985.
520 $a The three-dimensional structure of linear and nonlinear waves generated by infinite length and the finite length three-dimensional wavemakers is developed theoretically. The analytic solution of the wave field generated by a finite length wavemaker is very complex, therefore, a parabolic model is introduced to solve this problem.
520 $a A three-dimensional wavemaker can exist only in theory. To generate directional waves in a wave tank, we use a multi-element wavemaker; therefore, the multi-element wavemaker theory and the relation between three-dimensional wavemaker and multi-element wavemaker is presented. The effect due to the finite length of elements (paddles) was examined theoretically.
520 $a A wavemaker moving in simple-harmonic motion produces wave trains both at the frequency of the wavemaker and its harmonics. These waves consist of the Stokes waves as well as higher harmonic free waves due to the finite displacement of the paddles; a physical model was used at the Ocean Engineering Laboratory in the University of Delaware to detect the waves by the techniques of the wavenumber-frequency spectral analysis.
520 $a Because the phase lag between the second order Stokes waves and the second harmonic free waves is not random, the standard methods for estimating the wavenumber-frequency spectrum are not applicable (Jeffery, et al. 1981; Goda, 1981; Isobe and Kondo 1984); therefore, a modified MLM (Maximum Likelihood Method) was developed. The modified MLM can be used to resolve the wave spectrum of second order waves generated by a directional wavemaker as well as the wave spectrum in the incident and reflected wave field.
590 $a School code: 0060.
650 4 $a Physical Oceanography. $3 1019163
650 4 $a Physics, General. $3 1018488
690 $a 0415
690 $a 0605
710 2 $a University of Delaware. $3 1017826
773 0 $t Dissertation Abstracts International $g 46-09B.
790 $a 0060
791 $a Ph.D.
792 $a 1985
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=8525295