지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.1
- 수록면
- 415 - 426 (12page)
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초록· 키워드
오류제보하기
Fluid flow tests were conducted on three artificial rock fracture network models to visually investigate the behaviors of fluid flow and solute transport within the fracture intersections, by using the visualization techniques with a CCD camera. Numerical simulations by solving the Navier-Stokes equations were performed to simulate the fluid flow and solute transport based on the experimental models, and to extensively estimate the effects of fracture intersection and dead-end in fracture networks. The results show that for the crossed fracture models, when the Reynolds number (Re) of the inlet is larger than 1, a nonlinear flow regime starts to appear where the proportion of the flow rates in the two outlets change nonlinearly. When calculating the fluid flow in discrete fracture network (DFN) models, it is found that the critical condition of applying the local cubic law to model fluid flow in each single fracture in DFNs is J ≤ 10–5, where J is the hydraulic gradient. Beyond this value, the deviation of applying the cubic law increases remarkably with increasing hydraulic gradient. The effects of dead-ends of fractures on fluid flow are negligible, however, they have a strong impact on the breakthrough curves of particles in DFNs with the relative time deviation rate in the range of 5–35%.
목차
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참고문헌 (14)
참고문헌 신청
Park, Y.J. / 1999 / Analytical solutions for solute transfer characteristics at continuous fracture junctions / Water Resources Research 35:1531~1537
Reeves, D. M. / 2013 / The use of discrete fracture network simulations in the design of horizontal hillslope drainage networks in fractured rock / Engineering Geology 163:132~143
Stockman, H. W. / 2001 / Mixing at fracture intersections : Influence of channel geometry and the Reynolds and Peclet numbers / Geophysical Research Letters 28:4299~4302
Stockman, H. W. / 1997 / A lattice-gas and lattice Boltzmann study of mixing at continuous fracture Junctions : Importance of boundary conditions / Geophysical Research Letters 24:1515~1518
Wilson, C.R. / 1976 / Flow interference effects at fracture intersections / Water Resources Research 12:102~104
Reeves, D. M. / 2013 / The use of discrete fracture network simulations in the design of horizontal hillslope drainage networks in fractured rock / Engineering Geology 163:132~143
Stockman, H. W. / 2001 / Mixing at fracture intersections : Influence of channel geometry and the Reynolds and Peclet numbers / Geophysical Research Letters 28:4299~4302
Stockman, H. W. / 1997 / A lattice-gas and lattice Boltzmann study of mixing at continuous fracture Junctions : Importance of boundary conditions / Geophysical Research Letters 24:1515~1518
Wilson, C.R. / 1976 / Flow interference effects at fracture intersections / Water Resources Research 12:102~104
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