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.-

  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.

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.

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.-

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.

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.-

  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.

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.

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.-

  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.

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.

하천의 계획홍수위 결정에 관한 연구

민병형,민일규,서진호 동아대학교 공과대학 부설 한국자원개발연구소 1994 硏究報告 Vol.18 No.2

Analysis of open-channel flow is needed for the planning, design, and operation of water-resource project. The use of computers and the availability of efficient computational procedures have simplified such analysis as well as making it possible to handle complex and complicated systems. If the flow velocity at a given point does not change with respect to time, then the flow is called steady flow. however, if the velocity at g given location changes with respect to time, then the flow is called unsteady flow And a given instant of time does not change within a given length of channel, then uniform flow, at a time varies with respect to distance, then nonuniform flow, or varied flow. The steady and unsteady flows are characterized by the variation with respect to time at a given location, whereas the uniform and varied flows are characterized by the variation at a given instant of time with respect to distance. Thus, in a steady-uniform flow, the total derivative dv/dt=0. In one-dimensional flow, this means that ∂v=∂t=0, and ∂v/Xx=0. In this study, to analyze the flood flow profile characteristics and to apply in the man-made and the natural channel, uniform flow by slope-area method, nonuniform flow by standard step method(HEC-2 model) and unsteady flow by four point implicit method was investigated in this study. The weighted four point implicit method and Newton-Raphson method were used to solve the finite difference equations corresponding to the St. Venant equations for unsteady flow. The conclusions drawn from this study are: 1. Information about the input for the man-made channel simulation cases such as unsteady, nonuniform and uniform flow, given by defining a goodness of fit criterion D. Their rates were 0%, 13.4% and 18.7%, respectively. The natural channel cases were -3.9%, 0% and -0.8%. 2. The attenuation of the flood peak is getting larger as friction factoris increased. It was also shown that Froude's number is strongly dependant upon the channel slope and frict.

홍도항의 방파제 배치에 따른 정온도에 관한 실험적 연구

민일규,박한기,민병형,이명우 東亞大學校 海洋資源硏究所 1998 硏究論文集 Vol.11 No.1

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 1. In case of proposal 1, if an invaded wave is H₁/₃=8.46m, T₁/₃=13.0sec of an each wave direction the harbor calmness is as follows. 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(H₁/₃=2.0m) is invaded as usual. 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. 3. In case of proposal 4 the harbor calmness is considerable satisfactory at ail direction and the wave height ratio of harbor under 0.1 when the high wave is invaded. 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

Water Front개념이 도입된 부산의 해안역 개발에 관한 연구(Ⅱ)

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

The purpose of this study is to establish the effective direction of development in the coastal zone of Pusan and understand the concept of water front which recently employed to analyze the area of city near the sea. It has been discussed about the present condition, the problem of application of Water-front, and the direction of development in the area of shore using the concept of Water-front. From the results of this study, it can be concluded that Pusan would be the pivot of Asian and Pacific zone with Pusan harbor if the concept of Water-front and the plan of its employment is carefully arranged.