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The Analysis of Hydrological Property with Curved-channel Type

하도만곡형상에 따른 수리특성분석

  • Ahn, Seung-Seop (School of Construction Engineering, Kyungil University) ;
  • Lee, Sang-Il (Department of Civil Engineering, Kyungil University) ;
  • Park, Dong-Il (Department of Civil Engineering, Kyungil University) ;
  • Kim, Wi-Seok (Department of Civil Engineering, Kyungil University)
  • Received : 2011.07.28
  • Accepted : 2011.09.26
  • Published : 2011.10.31

Abstract

This study selected 6 river reach, which have various curved-channel, included in an object of study as making the Nakdong River, which is a real nature river, as a point of an object of study by using SMS RMA-2 model, a 2D numerical analysis model, and applied project flood and analyzed and examined characteristic of hydrological property and super-elevation, which includes characteristic of the velocity of a moving fluid. As a result, in a river reach, whose width is wide, angle of curved-channel has impact on the velocity of a moving fluid of inside of curved-channel and in a river reach, whose width is narrow, the radius of curvature and width of the river have impact on the velocity of a moving fluid of inside of curved-channel. Also it found out that the ratio of reduction in water-level of inside of curved-channel is more bigger than ratio of increasing in water-level of outside of curved-channel when project flood is increasing and angle of curve is increasing. Based on this, this study would be used as a expectation of danger and preliminary data in planning real river or a business, that creates an environment.

Keywords

RMA-2;Curved channel;Hydrological property;Super elevation

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