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오늘 본 자료
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Comparison of Exact and Asymptotic Results for the Focusing of Electromagnetic Waves through a Plane Interface
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GPS와 USN을 이용한 크레인 위치제어 시스템 설계
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Antioxidative and Skin-Whitening Effect of an Aqueous Extract of Salicornia herbacea
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동물해원 관점에서의 동물복지
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물류센터 출고 lead time 개선(A사 사례)
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건물에너지시스템의 디지털 트윈을 위한 실물센서와 가상센서의 지속적인 동시보정 방법
- 검색키워드
- 저자 : Ira Didenkulova (검색결과 3 건)
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Narcisse Zahibo,Ira Didenkulova,Efim Pelinovsky 한국해안,해양공학회 2007 한국해안해양공학회 논문집 Vol.19 No.4
The process of the nonlinear shallow water wave transformation in a basin of a constant depth is studied. Characteristics of the first breaking of the wave are analyzed in details. The Fourier spectrum and steepness of the nonlinear wave are calculated. It is shown that the spectral amplitudes can be expressed using the wave front steepness, which allows the practical estimations. 본 논문에서는 수심이 일정한 수조에서의 비선형 천해파의 변형 과정에 대한 연구를 수행하였다. 파랑의 최초 쇄파에 대한 특성을 자세히 분석하고, 비선형파의 경사 및 퓨리에 스펙트럼을 산정하였다. 분석결과 스펙트럼의 진폭은 실용적으로 추산이 가능한 파랑 경사를 이용하여 표현할 수 있다.
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나르시세자히보(Zahibo, Narcisse),이라디덴쿠로바(Didenkulova, Ira),에핌페리높스키(Pelinovsky, Efim) 한국해안해양공학회 2007 한국해안해양공학회 논문집 Vol.19 No.4
본 논문에서는 수심이 일정한 수조에서의 비선형 천해파의 변형 과정에 대한 연구를 수행하였다. 파랑의 최초 쇄파에 대한 특성을 자세히 분석하고, 비선형파의 경사 및 퓨리에 스펙트럼을 산정하였다. 분석결과 스펙트럼의 진폭은 실용적으로 추산이 가능한 파랑 경사를 이용하여 표현할 수 있다. The process of the nonlinear shallow water wave transformation in a basin of a constant depth is studied. Characteristics of the first breaking of the wave are analyzed in details. The Fourier spectrum and steepness of the nonlinear wave are calculated. It is shown that the spectral amplitudes can be expressed using the wave front steepness, which allows the practical estimations.
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Three-dimensional tsunami runup simulation for the port of Koborinai on the Sanriku coast of Japan
Kim, Dong Chule,Kim, Kyeong Ok,Pelinovsky, Efim,Didenkulova, Ira,Choi, Byung Ho BioOne (Coastal Education and Research Foundation) 2013 JOURNAL OF COASTAL RESEARCH Vol.65 No.-
<P>The huge tsunami generated by the earthquake that occurred off the Pacific coast of Japan at 14:46 JST (05:46 UTC) on Friday, 11 March 2011 produced a maximum runup of 40 m on the east coast of Japan. The earthquake triggered extremely destructive tsunami waves up to 37.9 m in height that struck Japan minutes after the quake. Koborinai is a tiny fishery port located north of Miyako City in the Iwate Prefecture. A survey team from the University of Tokyo Earthquake Research Institute (ERI) found high water marks and other evidence of a gigantic wave at the port of Koborinai. The port is on low land sandwiched between two mountains. A joint survey team from ERI-Sungkyunkwan University (SKKU) and Korea Ocean Research & Development Institute (KORDI) visited again and surveyed the site in detail. The 3D Princeton Ocean Model was applied to describe the propagation and runup of the tsunami on the Japanese coast. The numerical simulation results obtained were in satisfactory agreement with observations made in the general area, except those made in many v-shaped valleys along the northern Iwate coast. The extremely high runup of tsunami waves at the port at Koborinai were successfully reproduced by numerical simulation through stepwise refinement of the spatial scale using multi-nesting and consideration of the vertical acceleration of flow along steep slopes using a CFD model to solve the Reynolds-averaged Navier-Stokes (RANS) equations. The velocity field was also computed, and the simulation results show that the water flow that climbed the coast possessed a strong vertical velocity component.</P>
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