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Introduction- Water circulation system facility in newly developing urban area
is popular in Korea.
- It is important to analyze flow patterns and water quality
distribution because most of the water circulation systems hasvery low velocities and depth in the inland navigation.
- The reference site of this study is composed of artificial lake andwaterways in urban area developing residence complex- The purpose of this study is to review the velocity distribution,
flow trace and water quality in the lake and navigation waterways.

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The 9th International Forum on Waterfront and Watershed Restoration(2012/11/24)

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Bridges

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SystemIntake/Distribution Pump, Distribution Pipes 5.7km
2 Pond, 㥶㧛㣿㑮 㑮ἓ㔲㍺

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Facilities

Central Lake, Q = 16,100຿/day

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Facilities

Path Bridge

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Fountain, Self Purification Plants, Water Corridor

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6 in S-N Canal

Improvement ofWater Quality

Initial Rainfall Treatment(12), Aeration(20)Measurements

Rainfall, Water Stage, Water Qualty, CCTV

Water Proofing

Bed of Canalway 97,162້

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http://www.a-rr.net/

The 9th International Forum on Waterfront and Watershed Restoration(2012/11/24)

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http://www.a-rr.net/

The 9th International Forum on Waterfront and Watershed Restoration(2012/11/24)yGGGzG G~hzwGtjGGjvkGGGGG
割把΀ΣΚΘΚΟΒΝ͑΁ΝΒΟͲΝΥΖΣΟΒΥΚΧΖ͑͢ͲΝΥΖΣΟΒΥΚΧΖ͑ͣͲΝΥΖΣΟΒΥΚΧΖ͑ͤͲΟΟΦΒΝ͑ͲΧΖΣΒΘΖ

4.37

4.37

4.35

4.40

ΈΠΣΤΥ͑ΔΒΤΖ

6.74

6.74

6.86

8.74

͵ΒΪ͑ΤΒΥΚΤΗΚΖΕ͑ΨΚΥΙ͑ΥΒΣΘΖΥ͑Έ΂

274274283

283

ͲΟΟΦΒΝ͑ͲΧΖΣΒΘΖ

4.41

4.41

4.44

4.43

ΈΠΣΤΥ͑ΔΒΤΖ

9.22

9.23

9.71

10.65

͵ΒΪ͑ΤΒΥΚΤΗΚΖΕ͑ΨΚΥΙ͑ΥΒΣΘΖΥ͑Έ΂

285

283

282

286

ͲΟΟΦΒΝ͑ͲΧΖΣΒΘΖ

4.46

4.46

4.47

4.47

ΈΠΣΤΥ͑ʹΒΤΖ

10.31

10.34

10.38

10.50

͵ΒΪ͑ΤΒΥΚΤΗΚΖΕ͑ΨΚΥΙ͑ΥΒΣΘΖΥ͑Έ΂

276

274

273

273

ͲΟΟΦΒΝ͑ͲΧΖΣΒΘΖ

4.46

4.48

4.48

4.49

ΈΠΣΤΥ͑ʹΒΤΖ

8.50

8.54

8.55

8.66

͵ΒΪ͑ΤΒΥΚΤΗΚΖΕ͑ΨΚΥΙ͑ΥΒΣΘΖΥ͑Έ΂

284

282

282

281

΁ΠΚΟΥ ͔͢΁ΠΚΟΥ ͔ͣ΁ΠΚΟΥ ͔ͤ΁ΠΚΟΥ ͔ͥyGGGzG G~hzwGtjGG{TwGGGGG
割΁ΠΚΟΥ ͔͢΁ΠΚΟΥ ͔ͣ΁ΠΚΟΥ ͔ͤ΁ΠΚΟΥ ͔ͥ把΀ΣΚΘΚΟΒΝ͑΁ΝΒΟͲΝΥΖΣΟΒΥΚΧΖ͑͢ͲΝΥΖΣΟΒΥΚΧΖ͑ͣͲΝΥΖΣΟΒΥΚΧΖ͑ͤͲΟΟΦΒΝ͑ͲΧΖΣΒΘΖ

0.025

0.025

0.0250.027

ΈΠΣΤΥ͑ΔΒΤΖ

0.030

0.030

0.030

0.034

͵ΒΪΤ͑ΤΒΥΚΤΗΚΖΕ͑ΨΚΥΙ͑ΥΒΣΘΖΥ͑Έ͟΂

357

357

358

334

ͲΟΟΦΒΝ͑ͲΧΖΣΒΘΖ

0.029

0.029

0.029

0.030

ΈΠΣΤΥ͑ΔΒΤΖ

0.040

0.040

0.042

0.046

͵ΒΪΤ͑ΤΒΥΚΤΗΚΖΕ͑ΨΚΥΙ͑ΥΒΣΘΖΥ͑Έ͟΂

292

293

281

239

ͲΟΟΦΒΝ͑ͲΧΖΣΒΘΖ

0.029

0.029

0.029

0.029

ΈΠΣΤΥ͑ΔΒΤΖ

0.044

0.044

0.044

0.045

͵ΒΪΤ͑ΤΒΥΚΤΗΚΖΕ͑ΨΚΥΙ͑ΥΒΣΘΖΥ͑Έ͟΂

283

285

286

273

ͲΟΟΦΒΝ͑ͲΧΖΣΒΘΖ

0.027

0.027

0.026

0.027

ΈΠΣΤΥ͑ΔΒΤΖ

0.032

0.032

0.032

0.033

͵ΒΪΤ͑ΤΒΥΚΤΗΚΖΕ͑ΨΚΥΙ͑ΥΒΣΘΖΥ͑Έ͟΂

344

346

346

339

Asian River Restoration Network (ARRN)

http://www.a-rr.net/

The 9th International Forum on Waterfront and Watershed Restoration(2012/11/24)yGGGzG G~hzwGtjGGjTGGGGG
割滆洖 ͔͢滆洖 ͔ͣ滆洖 ͔ͤ滆洖 ͔ͥ把΀ΣΚΘΚΟΒΝ͑΁ΝΒΟͲΝΥΖΣΟΒΥΚΧΖ͑͢ͲΝΥΖΣΟΒΥΚΧΖ͑ͣͲΝΥΖΣΟΒΥΚΧΖ͑ͤͲΟΟΦΒΝ͑ͲΧΖΣΒΘΖ

4.2

4.2

4.2

4.5

ΈΠΣΤΥ͑ΔΒΤΖ

6.4

6.4

6.3

8.6

͵ΒΪΤ͑ΤΒΥΚΤΗΚΖΕ͑ΨΚΥΙ͑ΥΒΣΘΖΥ͑Έ͟΂

365

365

365

365

ͲΟΟΦΒΝ͑ͲΧΖΣΒΘΖ

4.5

4.5

4.6

4.6

ΈΠΣΤΥ͑ΔΒΤΖ

9.7

9.7

10.1

11.1

͵ΒΪΤ͑ΤΒΥΚΤΗΚΖΕ͑ΨΚΥΙ͑ΥΒΣΘΖΥ͑Έ͟΂

365

365

365

365

ͲΟΟΦΒΝ͑ͲΧΖΣΒΘΖ

4.8

4.8

4.8

4.8

ΈΠΣΤΥ͑ΔΒΤΖ

10.7

10.8

10.8

11.0

͵ΒΪΤ͑ΤΒΥΚΤΗΚΖΕ͑ΨΚΥΙ͑ΥΒΣΘΖΥ͑Έ͟΂

365

365

365365ͲΟΟΦΒΝ͑ͲΧΖΣΒΘΖ

4.9

4.9

4.9

4.9

ΈΠΣΤΥ͑ΔΒΤΖ

9.0

8.9

8.9

9.0

͵ΒΪΤ͑ΤΒΥΚΤΗΚΖΕ͑ΨΚΥΙ͑ΥΒΣΘΖΥ͑Έ͟΂

365

365

365

365

z GGmGh GG~Gx GG~GjGz Flow Analysis
1. For the original plan, the circulation water discharges directly
to near intake facility
൯ Short cut phenomenon and bad mixing circulation
൯ Vortex and dead zone appear in the North and South area

2. Among alternatives, the 3rd one , Separation of the Bed near the North
Intake Structure , Improved Vortex and Mixing Condition in the lakecirculation
3. In the review of dilution rate and detention time, the alternative 3 issuperior to original plan.
Asian River Restoration Network (ARRN)

http://www.a-rr.net/

The 9th International Forum on Waterfront and Watershed Restoration(2012/11/24)

z GGmGh GG~Gx GG~GjGz Water Quality Analysis
1. For water quality control in terms of BOD, COD, SS, T-P, T-N and Chl-a,WASP7 model is used for the 2-D simulation
2. Point 2 and 3 show a little higher than point 1 and 4 because
nonpoint pollutant transported from the waterways in the rainy season.
3. Annual Average water quality satisfies target water quality
except rainy season in each plan

We are still Concerning ;1.Water Quality Control
2. Water Quantity Control
3. Canal Operation Rules

Due to Rare References

Asian River Restoration Network (ARRN)

http://www.a-rr.net/

The 9th International Forum on Waterfront and Watershed Restoration(2012/11/24)

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Asian River Restoration Network (ARRN)

http://www.a-rr.net/