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유공벽에 의한 파의 반사율 산정에 있어서 경험공식의 타당성Validity of Empirical Formulas for Estimation of Reflection Coefficient of Waves Due to Perforated Wall

Other Titles
Validity of Empirical Formulas for Estimation of Reflection Coefficient of Waves Due to Perforated Wall
Authors
윤성범이종인한상철
Issue Date
Nov-2006
Publisher
대한토목학회
Keywords
유공벽 두께; 반사율; 수리실험; 에너지손실계수; 관성저항길이; perforated wall; reflection coefficient; hydraulic experiment; energy loss cofficient; length of inertia resistance; perforated wall; reflection coefficient; hydraulic experiment; energy loss cofficient; length of inertia resistance
Citation
대한토목학회 논문집B, v.26, no.6B, pp 633 - 639
Pages
7
Indexed
KCI
Journal Title
대한토목학회 논문집B
Volume
26
Number
6B
Start Page
633
End Page
639
URI
https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/45132
ISSN
1015-6348
Abstract
여러 가지 두께의 유공벽을 이용하여 다양한 파 조건에 대한 반사율 실험을 실시하고 기존 이론식의 타당성을 검토하였다. 그 결과 유공벽의 두께가 두꺼우면 에너지손실계수가 기존 이론식에 사용된 예연오리피스 공식의 약 62% 정도로 감소하며, 관성저항길이는 벽의 두께가 증가함에 따라 선형적으로 증가하는 것으로 나타났다. 관성저항의 길이가 증가할수록 최소반사율을 주는 유수실 폭이 감소한다. 그러므로 본 연구에서 얻어진 결과는 유공벽 설계시 유용하게 사용될 수 있을 것으로 판단된다.
The validity of the existing formulas for the estimation of reflection coefficient of waves due to perforated wall is investigated using the result of hydraulic experiments conducted with perforated walls of various thickness. The result shows that, when the wall is thick, the energy loss coefficient is reduced to 62% of the value evaluated using the existing formula for sharp-crested orifice. The result also shows that the length of inertia resistance increases linearly as the thickness of the wall increases. The width of chamber to achieve the minimum reflection of waves decreases as the length of inertia resistance increases. Thus, the result found in the present study can be usful for the design of perforated wall.
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COLLEGE OF ENGINEERING SCIENCES > DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING > 1. Journal Articles

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