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- 저자 : 민일규(Min Il-Kyu) (검색결과 10 건)
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조성만(Cho Seong-Man),유상호(Yu Sang-Ho),박병선(Park Byung-Sun),민일규(Min Il-Kyu),민병형(Min Byung-Hyung) 동아대학교 해양자원연구소 2002 동아대학교 해양자원연구소 연구논문집 Vol.14 No.-
As the roughness coefficient by existing Manning table is used by technician"s experience and judgement, it isn"t always correct.<BR> This study as a try to make quantitative roughness coefficient is to suggest a new application mode computerizing roughness coefficient by surveying the velocity and hydraulic condition of small rivers.<BR> The bound of roughness coefficient was 0.027~0.180 and its values distribute uniformly. This means that the roughness coefficient adapt value by Manning table cannot fill up the transformed value when the small rivers are low.<BR> The roughness coefficient computation mode in this study with hydraulic radius(R), channel slope(I), average grain diameter(D) as subject factors presents as follows.<BR> n´ = 5.97 R<SUP>0.671</SUP> I<SUP>0.452</SUP> D<SUP>0.059</SUP>
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이상구(Lee Sang-Gu),유상호(Yu Sang-Ho),오상용(Oh Sang-Yong),민일규(Min Il-Kyu),민병형(Min Beung-Hyeung) 동아대학교 해양자원연구소 2002 동아대학교 해양자원연구소 연구논문집 Vol.14 No.-
To stand river capital planning, flow situation like low-flow in small rivers used to be calculated as the ratio of area by flow situation in other large rivers. Which is because the small rivers don"t have a survey about the small watershed area water-level and discharge. Therefore, this study has examined the low-flow estimation computerizing the dearth water discharge amount in small rivers.<BR> The low-flow statistics which is calculated by independent variables of the watershed area(A), the average basin slope(S), the void ratio(V), the volume of pores(V<SUB>f</SUB>), the mountain ratio(M) and the year average amount of rainfall(R) is as follows.<BR> Q = 0.00245 A<SUP>0.516</SUP> S<SUP>-0.024</SUP> V<SUB>f</SUB><SUP>0.014</SUP> M<SUP>-0.061</SUP> R<SUP>0.079</SUP>
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민일규,김원규,최병습,박상길,김가현 釜山大學校生産技術硏究所 1996 生産技術硏究所論文集 Vol.51 No.-
波浪과 흐름이 共存하는 大河川 河口部인 洛東江 河口域에서 洛東江 河口둑을 基点으로 波浪, 흐름, 地形變動, 潮流, 洪水位等을 評價基準으로 하여 災害에 대한 基本的인 評價를 實施했다. 波浪, 潮流, 洪水位等이 水位上昇을 透發시켜 周邊地域을 浸水시킬 수 있는 危險性의 與否를 實測과 數値計算을 통하여 實施하였다. 地形變動은 實測만을 통하여 地形變動率을 調査하였다. 資料를 分析한 結果 洛東江 河口地域은 波浪, 흐름과 波浪이 共存하는 領域으로 區分된다. 數値計算結果에 의하면 河口部에서의 來襲波高가 直接 河口둑 水門과 주변構造物에 미치는 影響은 크지 않았다. 또한, 3次元 波高分布를 볼 때 河口 水路를 따라서 거슬러 올라오는 波浪의 影響은 거의 없었다. 洪水位와 流速은 災害를 透發시키는 主要因子로 評價되었다. 波浪에 의한 異常高潮와 漲潮流와 潮汐의 滿潮時間 및 最大洪水量이 時間적으로 一致되는 境遇, 河口둑 周邊地域의 水位 上昇과 流速의 停滯現狀으로 浸水狀態가 發生한다. For the investigation of inundation disasters by wave setup in the Nakdong Estuary of the Large River which waves and currents are coexist, the wave surveying data was analyzed and the numerical model was applied to the Estuary. In this study, the result of surveying data analysis shows that waves have little effect on the surroundings. As the result of numerical computation, waves have seldom direct influence upon the barrage and its gates. Also, according to three dimension distribution of waves, it is found that coming up waves along the Estuary channel and the setup of waves have seldom effect barrage structures.
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조성만,유상호,박병선,민일규,민병형 東亞大學校 海洋資源硏究所 2002 硏究論文集 Vol.14 No.1
As the roughness coefficient by existing manning table is used by technician's experience and judgement, it isn't always correct. This study as a try to make quantitative roughness coefficient is to suggest a new application mode computerizing roughness coefficient by surveying the velocity and hydraulic condition of small rivers. The bound of roughness coefficient was 0.027∼0.180 and its values distribute uniformly. This means that the roughness coefficient adapt value Manning table cannot fill up the transformed value when the small rivers are low. The roughness coefficient computation mode in this study with hydraulic radius(R), channel slope(I), average grain diameter(D) as subject factors presents as follows. n = 5.97R^0.671 l^0.452 D^0.059
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이상구,유상호,오상용,민일규,민병형 東亞大學校 海洋資源硏究所 2002 硏究論文集 Vol.14 No.1
To strand river capital planning, flow situation like low-flow in small rivers used to be calculated as the ratio of area by flow situation in other large rivers. Which is because the small rivers don't have a survey about the small watershed area water-level and discharge. Therefore, this study has examined the low-flow estimation computerizing the dearth water discharge amount in small rivers. The low-flow statistics which is calculated by independent variables of the watershed area(A), the average basin slope(S), the void ratio(V), the volume of pores(V_f), the mountain ratio(M) and the year average amount of rainfall(R) is as follows. Q=0.00245 A^0.516 S^-0.024 V^0.014_f M^-0.061 R^0.079
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민일규,이정환,민병형,이영일 東亞大學校 海洋資源硏究所 1997 硏究論文集 Vol.10 No.1
Recently, by rapid growth of economic development, the guantity of ship movement is more increasing. The premier function of harbor is safe comming and going ancoring of the ship. Thus, provide efficient loading and unloading. To achive this role, the one of the most important things is to get calmness. The factor of influence the calmness is wave, wind and mooring condition. The most influenced thing of calmness is wave which is appear wave ratios. In this a treatise is to study the merits and demerits of the habor wave calculation method by numerical model and investigate wave character. The purpose of this treatise is to develope calculation algorithm to be used calmness calculation that is proposed by Watanabe and Maruyama. And to investigate the application, we applicated to Pusan harbor, compared and considerated with the data of Hydraulic model test(N.T.C., 1984) After this, I expected this model is so helpful to the analysis of calmness.
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김인철,민일규,민병형 東亞大學校 海洋資源硏究所 1993 硏究論文集 Vol.6 No.1
Recently Jin-ha beach has experienced the intence erosion phenomena. The cause of erosion is examined throughout the field observation and the effects of wave and wave induced current on that phenomena are numerically experimented. In this study wave model is used Ebersole model(1985) solving elliptic mild slope equation and wave induced model is used the depth-integrated equation with continuity equation and momentum equation. The results that these models are applied to Jin-ha beach, as fallows, 1) When the wave of SE system is excellent, we can see the wave concentration phenomena toward the Myeong-sun isle and when wave of E system is excellent, we can see that phenomena toward Jin-ha beach. 2) The shole that exists in the 1.7km forward of Jin-ha beach greatly has effects on the distributions of the wave height and wave direction. 3) The wave of E system develops the largest wave induced current in Jin-ha beach. 4) The wave of SE and NE system develops wave induced current toward river mouth in Jin-ha beach and the wave of E system is in the develops wave induced current in the opposite direction.
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김가현,이영대,서진호,민일규 한국환경과학회 2001 한국환경과학회지 Vol.10 No.3
Where no records are available at a site, a preliminary estimate may be made from relations between floods and catchment characteristics. A number of these characteristics were chosen for testing and were measured for those catchments where mean annual flood estimates were available. Although the improvement using extended data in regression of flood estimates on catchment characteristics was small, this may be due to the limitations of the regression model. When an individual short term record is to be extended, more detailed attention can be given; an example is presented of the technique which should be adopted in practice, particularly when a short term record covers a period which is known to be biassed. A method of extending the peaks over a threshold series is presented with a numerical example. The extension of records directly from rainfall by means of a conceptual model is discussed, although the application of such methods is likely to be limited by lack of recording raingauge information. Methods of combining information from various sources are discussed in terms of information from catchment characteristics supplemented by records. but are generally applicable to different sources of information. The application of this technique to estimating the probable maximum flood requires more conservative assumptions about the antecedent condition, storm profile and unit hydrograph. It is suggested that the profile and catchment wetness index at the start of the design duration should be based on the assumption that the estimated maximum rainfall occurs in all durations centered on the storm peak.
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