Figure 4.18 scour development at time = 360 min and discharge 0.057 m3/sec

이 소개자료는 “SIMULATION OF LOCAL SCOUR AROUND A GROUP OF BRIDGE
PIER USING FLOW-3D SOFTWARE”논문에 대한 소개자료입니다.

Figure 4.18 scour development at time = 360 min and discharge 0.057 m3/sec
Figure 4.18 scour development at time = 360 min and discharge 0.057 m3/sec

연구 목적

  • 본 연구는 FLOW-3D 소프트웨어를 사용하여 교각 그룹 주변의 국부 세굴을 시뮬레이션하는 것을 목적으로 함.

연구 방법:

모델링 설정

  • FLOW-3D 소프트웨어를 사용하여 교각 그룹 주변의 국부 세굴 현상을 수치적으로 모의실험하였음.
  • 교각의 기하학적 형상 및 하천 흐름 조건을 모델에 반영하였음.
  • 다양한 교각 배열 및 흐름 조건에 대한 모델링을 수행하여 세굴 특성을 분석하였음.

모델 검증

  • 수치 모델의 결과를 실험실 데이터 또는 현장 관측 자료와 비교하여 검증하였을 것으로 예상됨.
  • 세굴 깊이, 세굴공의 형태 등 주요 세굴 변수에 대한 모델의 예측 성능을 평가하였을 것으로 예상됨.
  • 모델의 신뢰성을 확보하기 위해 민감도 분석 및 불확실성 분석을 수행하였을 것으로 예상됨.

주요 결과:

흐름 특성 분석

  • 교각 그룹 주변의 유속, 압력 분포 등 흐름 특성을 FLOW-3D 모델을 통해 분석하였을 것으로 예상됨.
  • 교각 배열이 흐름 패턴 및 와류 형성에 미치는 영향을 시각적으로 제시하였을 것으로 예상됨.
  • 세굴 발생 메커니즘과 관련된 흐름 특성을 파악하여 세굴 예측의 정확도를 높였을 것으로 예상됨.

구조물 영향 평가

  • 교각 그룹의 배열 방식이 세굴 깊이 및 세굴공의 크기에 미치는 영향을 평가하였을 것으로 예상됨.
  • 교각 주변의 세굴 특성을 분석하여 교각 기초 설계 시 고려해야 할 중요한 요소를 제시하였을 것으로 예상됨.
  • 수치 모의실험 결과를 바탕으로 교량의 안정성을 평가하고 설계 개선 방안을 제시하였을 것으로 예상됨.

결론 및 시사점:

  • FLOW-3D 소프트웨어를 이용한 수치 모델링은 교각 그룹 주변의 세굴 현상을 분석하고 예측하는 데 효과적인 도구임이 확인되었을 것으로 예상됨.
  • 본 연구 결과는 교각 기초의 안정성을 확보하고 교량 붕괴를 예방하는 데 기여할 수 있을 것으로 기대됨.
  • 향후 다양한 교각 조건 및 하천 흐름 조건에 대한 추가적인 연구를 통해 모델의 적용성을 확대할 필요가 있음.
Figure 3.1 Laboratory layout
Figure 3.1 Laboratory layout
Figure 3.10 Computational domain and mesh setup around the bridge piers model (4-10)
Figure 3.10 Computational domain and mesh setup around the bridge piers model (4-10)
Figure 4.18 scour development at time = 360 min and discharge 0.057 m3/sec
Figure 4.18 scour development at time = 360 min and discharge 0.057 m3/sec

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