RISS 검색 - 국내학술지논문

1
조류예측을 위한 2차원 수치모형

이삼노 외 전남대학교 수산과학연구소 1992 수산과학연구소논문집 Vol.1 No.-
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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.
2
防波提切開시 灣內의 水質變化據測

이삼노 외 전남대학교 수산과학연구소 1999 수산과학연구소논문집 Vol.8 No.-
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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.
3
하구언 방류가 만내의 해수유동에 미치는 영향

이삼노 외 전남대학교 수산과학연구소 1995 수산과학연구소논문집 Vol.4 No.-
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In order to inv않tigate variation of ti뼈 ClUTents and tide levels due to E~t뼈 Weir disc때.ge in the Mokpo Bay, the 뻐nerical mαlel is c011structed two-dimensional simple layer rr때el , and they are analysed by the implicite finite difference meth떼. 까lis paper invδstigates the re?πoducivility and convergence of soluti011 in application of t뼈 meth여 to Mokpo castal waters, and at three stations analysed variati011 of tidal ClUTents and tidal level c1ue to Estury Weir discharge. The result of the paper is clarifiecl i ) 씨1hen the amourrt of flowing water is maximum the variation of velκity have a rise of 2c찌sec at t뼈 front of f성tury 011 spring tic\e. ii) W뼈n the an1?urrt of flowing water is maximum(l32cm.,>), t뼈 V따iation of tic\a\ c\epth have a rise of 2cm at the three station. iii) Resiclual currents is impact of the fr011t of Estury in spring ticle.
4
하구언 방류가 만내의 오염물질확산에 미치는 영향

이삼노 외 전남대학교 수산과학연구소 1996 수산과학연구소논문집 Vol.5 No.-
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This paper has examined about the effect of the flow and pollutant dispersion by the discharge control at the estuary weir in Mokpo Bay, using a field survey data and results of numerical experiment. For this paper, using the numerical model is constructed two-dimensional simple layer model, and its analysed the imp!icit finite difference method(ADI). The results of the paper is clarified, 1) The flow pattern of the numerical experiments is similar to the others. 2) When the flow is the maximum discharge, the variation of velocity has a 2 cm/sec rise at the front of th estuary on spring tide. 3) It’s showed that the tide level is 2cm rise at Tl, T2, 1'3 of 8km around from the entrance. 4) The variation of COD is distributed 1.5mg/ Q -1.0mg/ Q in lkm from the estuaη, entrance, it is showed 1.0 -0.5mg/ Q at Kohado around

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