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      • 홍도항의 방파제 배치에 따른 정온도에 관한 실험적 연구

        민병형(Byung-hyung Min),민일규(ILL-kyu Min),박한기(Han-ki Park),이명우(Myung-Woo Lee) 동아대학교 해양자원연구소 1998 동아대학교 해양자원연구소 연구논문집 Vol.11 No.-

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

          Through a study as hydraulic model test that applied a calmness test to the coast of Hongdo harbor as an optimal surface arrangement we could reach the following conclusion<BR>  1. In case of proposal 1, if an invaded wave is H<SUB>1/3</SUB> = 8.46m, T<SUB>1/3</SUB> = 13.0sec of an each wave direction the harbor calmness is as follows.<BR>  The wave height ratio is about 0.6 at the entrance of a harbor 0.2~0.3 anchor area in general and the value under 0.1 when the wave(H<SUB>1/3</SUB>=2.0m) is invaded as usual.<BR>  2. The calmness effect is more favorable by breakwater extension as proposal 2 & 3, but if the high wave is assaulted the wave height ratio of anchor area is 0.1~0.2 owing to the diffraction wave at a SSE, SE direction.<BR>  3. In case of proposal 4 the harbor calmness is considerable satisfactory at all direction and the wave height ratio of harbor under 0.1 when the high wave is invaded.<BR>  Thereafter, a study that analyze and compare with the hydraulic model test by numerical analysis about the problem of harbor calmness that a short period wave has superiority will be continued.

      • KCI등재

        파랑변형 모형의 예측에 관한 연구

        옥치율(Chi-Yul Ok),민일규(Ill-Kyu Min) 한국해양공학회 1995 韓國海洋工學會誌 Vol.9 No.2

        The necessity of development of the Nearshore greatly emphasis recent year. In the wave deformation model, we can get the wave height and wave direction using the hyperbolic mild equation considered the reflection wave.<br/> Radiation Stress the driving force of flow was calculated by the Watanabe and Maruyama who proposed on the partial standing wave.<br/> In the surf zone, applying the Izumiya and Horikawa's turbulent model considered the bottom friction and energy dissipation, we compared and examined with the Numerical model and Hydraulic test result of Watanabe and Maruyanma.<br/> This model results obtained for Jin-ha Beach agreed well with the Numerical results. This model is expected so helpful to solve the prediction of the wave deformation problems in the development of the Nearshore zone in the future.

      • KCI등재

        회야강 하구 및 진하해수욕장의 지형변화에 관한 연구

        민병형(Byung-Hyung Min),민일규(Ill-Kyu Min),이동수(Dong-Soo Lee) 한국해양공학회 1994 韓國海洋工學會誌 Vol.8 No.1

        In recent years Jin-ha Beach and Hyeya River mouth have experienced severe erosion phenomena. The cause of erosion is examined using a 3-dimensional numerical sediment transport model.<br/> The model is composed of three components : wave model, wave-induced current model and 3-dimensional sediment transport model.<br/> In the wave analysis component we consider refraction, diffraction and reflection based on Maruyama and Kajima method. For the wave-induced current model we use depth-integrated continuty equation and momentum equations. For the 3-dimensional sediment transport model we consider bed load and suspended load simutaneously.<br/> Model results obtained for Jin-ha Beach and Hyeya River mouth agreed well with experimental results.

      • 호안단면의 안정성 검토에 관한 연구

        민병형(Byung-hyung Min),민일규(ILL-kyu Min),이정환(Jeong-Hwan Lee),김창동(Chang-dong Kim) 동아대학교 해양자원연구소 1998 동아대학교 해양자원연구소 연구논문집 Vol.11 No.-

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

          The necessity of development of the Nearshore zone and land reclamation has greatly emphasis in resent years.<BR>  In this study, I investigated on the overtopping in the frontside of the reclamation and distance from revetment when dredging operations.<BR>  Obtained results are summarized as follows.<BR>  1. In the result of the wave deformation model application, a significant wave height is 1.0m at reclamation the front revetment.<BR>  2. Experiment result of revetment section overtopping is in the permitted range of HUKUDA.<BR>  3. In the purpose of decision safety of revetment, I have been discovered the highest effect at 25m~40m distance.

      • 삼랑진 지점의 수위-유량곡선식 개발에 관한 연구

        강대석(Dae-Seok Kang),민일규(ILL-kyu Min),이승휘(Sung-Hee Lee),옥치율(Chi-Yool Ok) 동아대학교 해양자원연구소 2003 동아대학교 해양자원연구소 연구논문집 Vol.15 No.-

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

        In this study, Development The Rating-Curve Formula through to enforce the discharge investigator on Samrangjin Point. As use the result, We earning rationality, Economical irrigation and establishment a water control project, the basic material of determines hydraulic capacity to design water resources structure. At the same time, We can use The Rating-curve for a high efficient Flood warnning forecast in Nak-Dong River. The result and opinion of the discharge investigator is as follow: 1. The Rating-Curve Formula is Q=(-1065.91941)+1137.237287H+4.671360913H³(1.27<H<9.57) 2. A periodical and continuously management make a routine check over a watermark. 3. When enforce the discharge inverstigator, it require many time, person and equipment. So we can get accuracy and safety working conditions by assist a new system equipment to amount of flowing water measurement. 4. We must sublate to prepare the river bed or collect aggregate as possible, for the upper and downstream section in the established point of a watermark.

      • 준설수심에 따른 사천만의 해수유동 특성에 관한 연구

        강대석(Dae-Seok Kang),유상호(Sang-Ho Yoo),민일규(ILL-kyu Min),이동수(Dong-soo Lee),민병형(Byung-hyung Min) 동아대학교 해양자원연구소 2003 동아대학교 해양자원연구소 연구논문집 Vol.15 No.-

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 9시까지 원문보기가 가능합니다.

          This study on the characteristics of the tidal current at the half closed bay selected Sach?n Bay located in the western Kyung-nam area as the object location of the study.<BR>  Then, I analyzed the current with the varying dredging depth after the depth integral of the three Dimensional continuous equation and Navier-stokes equation.<BR>  The study would get the follwing results, and the results could be used meamingfully as the analysis material about the dredging depth"s influnce on the surrounding ocean when developing the coastal port.<BR>  1. When measuring the tidal current, there is a bit dispersion in the current direction of the observed object, but it is the wind effect at the bay. Considering that the calculated result is the shallow-water equation integranted in depth, the results can be concluded to in accored with my expectancy.<BR>  2. In case of reclaiming and dredging, the flow velocity and direciton change constantly, compared with the present condition.<BR>  3. At the wide bay dredge depth does not arrect the level of the ocean, but in case of inflow from the flood, the increase of the inflow of the river water affects the level of the ocean.<BR>  4. As the dredge depth grows deep, the maximum flood tidal current and obb tidal current at the front coast of the reclaimed decreases a little. However, the wide area Pc-7 ~ Pc-9 doesn"t show any change.<BR>  As we saw in the above result, feacturcs of the tidal current as the level of the ocean and the current velocity don"t change in the aspect of the ocean engineering, even if we increase the degree of the dredge depth up to 6m in Sach?n Bay.

      • 洪水追跡方法의 比較硏究

        서진호,민일규 東亞大學校 海洋資源硏究所 1994 硏究論文集 Vol.7 No.2

        The nonlinear relationship between storage and discharge exists in most actual river systems, making the use of the linear model inappropriate. This paper is to present a procedure that enables the nonlinear model or Characteristic Grid Method to deal effectively with the latter type of boundary condition and to compare the accuracy between hydrologic model and hydraulic mode. The conclusions drawn from this study are: 1. The hydrologic methods are less accurate than the hydraulic mode, namely, characteristic method. 2. Results of input for the simulation cases such as Muskingum Method, S.F.M and Characteristic Method, Characteristic Method was showed promising, and it was approved to be used for prediction of the basins.

      • 방파제 평면 배치에 따른 항내 정온도에 관한 연구

        민병형,민일규,이정환,강성기 동아대학교 건설기술연구소 1999 硏究報告 Vol.22 No.2

        The harbor Calmness decides is hydraulic and numerical medel test. The study is Hongdo harbor building of accompany that hydraulic and numerical motel test as breakwater plan arrangement for analysis of in harbor clmness and The harbor operate rate as invsetigates is result as numerical model test. This summarize shoes the following result 1. The analysis result is nearly agreed of hydraulic and numerical model test. 2. The analysis result is case.4 is very calmness of hydraulic and numerical model test and case.1 is failed, case.2, case.3 of campared as case.3 of judged that more calmness of arrangement all borken course. 3. The analysis test results of the harbor operate rate case.1 is samall then another cases that critical wave height of anchor area but the calmness of anchor area of the case.1 that is much broarder than Hongdo anchor area therefor case.1 was decided no problme that ship is used harbor. This study result will be used of Hongdo harbor in the future for plan building of breatwater. The future for hardof high exactly as hydraulic and numerical model test especially, the will be studied numerical model test for beach reflection, breaking wave height, submerged friction.

      • 감조하천의 유로단면변화에 따른 유황해석

        민병형,민일규,이승휘,박한기,박홍준 동아대학교 건설기술연구소 1997 硏究報告 Vol.21 No.2

        The subject of this study apply to KyungSangNamDo Sachun-Si Sachun-bay sea area for builds up a industrial complex, and inquire into the .phenomenon in compared after with before reclamation. I investigated, how to remove these harmful influence and make a estimate that a water-level, flow direction and river-bed evolution by inflow of river, wave's attack. So we have come to the conclusion as follow. 1. Water Level After reclamation, the water-level is ascended, but the water-level is stable after dredging and changing water-course. 2. Velocity of Flow : After reclamation, back water broke out, the velocity of flow was faster after dredging and changing water-course, but the velocity of flow came to be stable in the downstream. 3. River-bed Evolution : After reclamation, the severe erosion occured in the front of revetment, but after d]:edging and changing the water-course as the new stable water-course constituted, river bed evolution decreased and the flood wave flow smoothly. 4. After reclamation, the water-level remarkablely increased, but the velocity of flow was nearly the same.

      • 쌍곡선형 완경사방정식을 이용한 비스듬한 입사파에 대한 연구

        민병형,김인철,민일규,허상기 東亞大學校 海洋資源硏究所 1992 硏究論文集 Vol.5 No.1

        Various kinds of calculation method for wave field have been proposed but some problems remain with regard to the accuracy of the shoaling coefficient(Tanimoto and kobune, 1975) or to the boundary conditions(Berkhoff, 1976). Thus, a hyperbolic mild slope equation was based on the flow rates and the wave surface elevation by Maruyama and Kijima(1985) but this model could not be calculated for waves moving obliquely into a wave field. In this study the fault of the hyperbolic mild slope equation is elliminated by treating lateral boundary condition as incident boundary condition. The result that the modified model is applied to a simple wave field agrees to the exact solutions.

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