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A Study on Hydraulic Characteristics of rollway of Ice-Harbor Type Fishway Using Computational Fluid Dynamics

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A Study on Hydraulic Characteristics of rollway of Ice-Harbor Type Fishway Using Computational Fluid Dynamics

1

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1

(fishway) .

EDISON_CFD

(rollway) . ,

. 2

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Key Words : (Artificial fishway), (Ice harbor type), (Hydraulic characteristics), (Computational fluid dynamics)

1.

.

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, , ( 1).

.

,

.

[1]

,

.

[2]

Baek (2013)

, Lee (2012)

, 2% 5%

.

[3]

Lee (2012)

.

,

.

그림 1 아이스하버형 어도

(2)

2.

2.1

. Clay (1995)

(streaming flow) (plunging flow) ( 2).

,

.

, , , ,

, , .

, .

[2]

2.2

[5]

, .

0.5~1.0m/s (29 1 4 ),

5% (29 3 3 ),

0.1m (29 3 3 )

.

.(29 3 3

) h

0.5m 0.1m 0.2m

0.5m 0.1m ,

0.5m/s 1.0m/s 0.1m/s

.

Rajaratnam

[6]

0.5m .

0.5m/s 1.0m/s 0.1m/s

.

2%, 5%

7%, 10% .

0.1m

(29 3 3 )

0.1m .

.

EDISON_CFD (Solver)

edWAVE2d , (Gridgen)

. , Lee

184 ,

41 7544 ( 3).

inlet ,

outlet .

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.

   SST .

[7]

h .

1 .

2.3 2.3.1

Rajaratnam(1988)

(A) 잠입류 (B) 표면류

그림 2 어도 내 흐름특성

[4]



 ·



표 1 Solver에서 사용한 물리량

월류부

h

중앙 칸

그림 3 분석에 사용한 격자

(3)

2% 5% 10% 15%

. Rajaratnam(1988)

, 15%

.

0.5m/s 2%, 5%, 7%, 10%

( 4).

(Paraview) 4.2.0 RC1

(Glyph) .

. 5

.

2 .

7%

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10% 0.1m/s 0.5m/s

1.0m/s ,

. Rajaratnam(1988) ,

. edWAVE2d

.

. .

,

. 3

, 10%

.

. 7%

0.6m/s

. ,

그림 4 기울기 7% 월류부 높이 h=0.5m 유속 v=0.7m/s 조건에서의 유동

0.0 1.0

그림 5 색상에 따른 체적분율 수치표

2% 5% 7% 10%

표 2 월류부 높이 h=0.5m 유속 v=0.5m/s 일 때 중앙 칸 내 유동

[m/s]

0.5 0.6 0.7 0.8 0.9 1.0

2% 6.3 6.3 6.8 6.0 8.2 8.5

5% 8.6 10.0 11.5 11.6 16.6 17.8

7% 13.3 28.3 30.1 39.9 38.9 39.5

10%

표 3 기울기와 속도에 따른 정상상태도달시간(초)

(4)

.

,

. 2.3.2

h 24

.

,

.

5 .

h .

4 ~ 7 .

h=0.2m

,

0.5m/s ~ 1.0m/s .

1.0m/s

. h=0.3m

0.5      × 

 0.6      × 

 0.7      × 

0.8      × 

 0.9      × 

 1.0      × 

 표 7 h=0.5m일 때 중앙 칸 내 유동

0.5      × 

 0.6      × 

 0.7      × 

0.8      × 

 0.9      × 

 1.0      × 

 표 6 h=0.4m일 때 중앙 칸 내 유동

0.5      × 

 0.6      × 

 0.7      × 

0.8      × 

 0.9      × 

 1.0      × 

 표 5 h=0.3m일 때 중앙 칸 내 유동

0.5      × 

 0.6      × 

 0.7      × 

0.8      × 

 0.9      × 

 1.0      × 

표 4 h=0.2m일 때 중앙 칸 내 유동

(5)

. 1.0m/s

. h=0.3 ,

. ,

. 1.0m/s

. h=0.4m 0.5m

. ,

.

,

,

 × 

∼  × 

,  × 

.

.

(froude

number,  ) .

  

 

 ,

.

[8]

,

.

3.

2 ,

. 2%, 5%, 7%, 10%

0.5m/s, 0.6m/s, 0/7m/s, 0.8m/s, 0.9m/s, 1.0m/s .

0.2m, 0.3m, 0.4m, 0.5m

0.5m/s, 0.6m/s, 0/7m/s, 0.8m/s, 0.9m/s, 1.0m/s

. ,

. (1)

, . (2)

,

,

, .

(3)

, , .

(4)

 × 

∼  × 

 × 

. (5)

.

[1] Choi, S. H., 2009, “Flow analysis in the baffled fishway using FLOW-3D.”, Proc. of Korea Water Resources Association, KWRA, pp. 1847-1840.

[2] Baek, K. O., 2013, “Analysis of Hydraulic Passage Efficiency of Ice-Harbor Type Fishway for Flowrate Change”, Journal of the Korean Society of civil Engineers, Vol.30, No.5, pp. 1841-1850.

[3] Lee, Z. S. and Ahn, S. S., 2012, “Analysis of Hydraulic Characteristics in Ice-Harbor Fishway”, 2013 Korean Geo-Enviromental Society Conference, September 21, Seoul, pp.

295-298.

[4] Clay, C. H., 1995, Design of Fishways and Other Fish Facilities, CRC Press, Florida, pp. 106-111.

[5] , 2009, , ,

.

[6] Rajaratnam N., 1988, “Plunging and Streaming Flows in Pool and Weir Fishways”, Journal of Hydraulic Engineering, Vol.114, No.8, pp. 939-944.

[7] Versteeg, H. K., 2007, “An Introduction to Computational Fluid Dynamics The Finite Volume Method”, Prentice Hall, London, pp. 57-61.

[8] Newman, J. N., 1977, “Marine Hydrodynamics”, Cambridge,

Massachusetts: MIT Press, p. 28.

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