연안매립에 따른 조위변화에 관한 연구

이삼노 전남대학교 수산과학연구소 1994 수산과학연구소논문집 Vol.3 No.-

To investigate variation of tidal currents and tide levels in the Mokpo c얘stal waters due to littoral reclamation, πle numerical model is constructed twc? dimensional simple layer model, and They are analysed by the implicit finite difference method. aJso, The paper investigates the reproducibility and convergence of solution in application of the method to Mokpo coastal waters and, at six station, analyed variation of tidal currents and tidal level due to littora1 reclamation. The folJowing items are clarified; i ) Flow patterns obtined by the numerical experiments approximately coincide with those of the field observation by the Hydrographic office. ii) Numerical experiment results have shown that ti없1 currents during the ebb tide is more 따valent than one during the fl()(녕 tide, and Tidal cycle for converg밍lt soluton are six tidal cycles ili) 까le variation of tidal currents and tidal level due to reclamation, exception nearby reclamation, similary reJπesented

소만의 해안선변형에 의한 유동모델링

이삼노,박진형 여수대학교 2001 論文集 Vol.16 No.-

A two-dimensional numerical analysis is performed for flow modeling of shoreline transformation in Hadong tidal basin. The shallow water equations are selected as a mathematical model and the Leendertse's ADI scheme is used as the corresponding numerical model. In numerical model results, the ebb flow is more prominent than the flood flow. Therefore the direction of residual current is southward in the hadong Bay. These phenomena reflect well the characteristics of tidal flow in situation. Tracks of drogues released in some fixed points of Hadong bay at the flood tides show that they drift eastward with velocities of 45 ㎝/sec on average and ebb tides show westward. Their results are in line with the tidal residual currents confirmed by the tide harmonic analysis. In result, a variation of tidal currents is very small due to shoreline transformation in Hadong tidal basin.

貯溜 函數法의 流出解析에 關한 硏究

李三魯 여수대학교 1988 論文集 Vol.2 No.-

In order to find the runoff appearance of basin. This study applied the storage function method to young San river basin. The results are as allow ; 1. Runoff analysis resulted from the storage function method was shown nearly satisfactory comparing with the existing discharge in this basin. 2. The storage function formular for Young San river basin belong to the general class: S=67.2????? 3. Primary runoff ratio, saturated rainfall and lag time were estimated at f₁=0.62, ???=24.6mm, Tι=4hrs. 4. If the storage parameter of this basin is determinded by applying the storage function method to varied floods, Time method is usable to rumoff analysis of this basin more effectively.

2004년 전남지역 수해피해조사

이삼노,박진형 한국수자원학회 2005 한국수자원학회논문집 Vol.38 No.1

방파제 축조에 따른 조류변화 해석

이삼노,이우범,박진형 國立 麗水大學校 環境問題硏究所 1998 環境硏究論文集 Vol.1 No.-

When we construct some marine structures such as breakwater. we must investigate the influence on water quality environment due to the structure. This paper describes the investigation of tidal current variations in Wando Harbour before and after breakwater construction. For the investigation, A two dimensional hydrodynamical numerical model is presented. An explicit finite difference scheme is used to solve the control equation of the model representing the tidal dynamics of the region. From the results of physical and numerical experiment, Tidal elevation for the four major tidal constituents M_(2), S_(2), K_(1) and O_(1) are reproduced by the model. Tidal currents are promoted far from breakwater and in front of breakwater, but are decreased around the structure.

강진만해역의 해양물리특성

이삼노,조재연,박진형 國立 麗水大學校 環境問題硏究所 2000 環境硏究論文集 Vol.3 No.-

Studying the physical characteristics of flow on the various tidal conditions around the Kangjin Bay, harmonic analysis and tidal currents observations were carried out. Tidal currents observations were carried out around Kangjin Bay, southern coast of Korea in July. 25-26. 2000 during neap tide and July. 31-August. 1.2000 during spring tide. The maximum tide difference is 440㎝ during spring tide at Kangjin Bay and 195㎝ during neap tide. The averaged current speed rang was from 49.54㎝/s to 23.25㎝/s at ST.C1. and from 40.49㎝ to 16.01㎝ at ST.C2 during spring tide and when the neap tide. from 49.54㎝/s to 23.25㎝/s at ST.C1. and from 40.49㎝ to 16.01㎝ at ST.C2. Therefore the direction of residual current is northward inner bay of Kangjin Bay and southward residual current is excellent in Kangjin Bay. Tracks of drogues show that drogues are moved from Station A to the northward thorough the right side of Birae-Do in flood flow and from Station C to the southward in ebb tide. These phenomenon were due to results of the characteristic of tidal flow and coastal topography.

2004년 전남지역 수해피해조사

이삼노,박진형 한국수자원학회 2005 물과 미래(한국수자원학회지) Vol.38 No.1

AR모델에 의한 洪水流出量 豫測에 관한 硏究

鄭炳健,鄭鎰光,李三魯 여수대학교 1992 論文集 Vol.6 No.-

This study shows the comparison between the observations and the AR model on the flood runoff the the Young San River basin. On the ascending curve in hydrograph, AR model hae the same tendency as the observation. However the peak part and the descending curve demonstrate a rather difference. As the results of comparsion correlogram with statistical characteristic of observation, AR model is judged suitable model in prediction by on-line method.

防波提切開시 灣內의 水質變化據測

이삼노 외 전남대학교 수산과학연구소 1999 수산과학연구소논문집 Vol.8 No.-

The objective of this study, is interpretation of current flow pattern and pollutant dispersion by the breakwater incision in a harbor. The reliability of predictions from a pollutant dispersion model depend on how well the model approximates the field situation, the numerical model used here is a two-dimensional simple layer model(ADI). It is investigate the reproduction of phenomena for flow patterns and pollutant dispersion was confined through the comparison between the observed data at Wando Harbor. When the breakwater was cut by 100m at center part, current velocity was larger by max. 0.12mfsec and computation of COD was lower by 0.1 m따 t -0.9m따 t than before breakwater incision. Resultly, we can expected water quality improvement approximate 33% because it is incised.

조류예측을 위한 2차원 수치모형

이삼노 외 전남대학교 수산과학연구소 1992 수산과학연구소논문집 Vol.1 No.-

This paper describes the characteristics of tidal currents in the Mokpo Coastal Waters by using the two-dimensional nonlinear hydrodynamic equation. The basic equations are derived by NavierStokes momentum equation and continuity equation and its characteristics critically are reviewed, and they are analysed by the implicit finite defference method. The numerical model is constructed two-dimensional (depth-averaged) simple layer model. This paper investigates the stability of solution and convergence of solution in application of the method to Mokpo -Coastal Waters, and the reproducibility of the simulation is also discussed in comparison with the results of field survey. The following items are clarified through the numerical investigation; i) The reproducibility of tidal range and currents are quite acceptable, comparing with the results of model tests and field data, and ii) Tidal cycle for convergent solution is six tidal cycle. also, iii) If not provided a special condition on the tidal flow, the frictional coefficient for the flow on the bottom of the bay can be represented by Chezy’s equation which considers the effect of the tide ?epth.