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Published by way of the yank Geophysical Union as a part of the Geophysical Monograph Series.

how one can signify fluid circulation, warmth, and chemical shipping in geologic media is still a crucial problem for geo-scientists and engineers around the globe. Investigations of fluid stream and shipping inside of rock relate to such basic and utilized difficulties as environmental remediation; nonaqueous section liquid (NAPL) shipping; exploitation of oil, fuel, and geothermal assets; disposal of spent nuclear gasoline; and geotechnical engineering. it's broadly stated that fractures in unsaturated-saturated rock can play a huge position in solute shipping from the land floor to underlying aquifers. it's also obtrusive that basic matters referring to circulate and delivery predictions in subsurface fractured zones might be resolved in a realistic demeanour through integrating investigations into the actual nature of stream in fractures, constructing correct mathematical types and modeling ways, and accumulating website characterization information. a result of complexity of circulation and delivery methods in so much fractured rock circulation difficulties, it's not but attainable to improve versions at once from first rules. One cause of this is often the presence of episodic, preferential water seepage and solute delivery, which generally continue extra speedily than anticipated from volume-averaged and time-averaged versions. besides the fact that, the physics of those procedures continues to be known.Content:

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Additional resources for Dynamics of Fluids and Transport in Fractured Rock

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The straight broken line is the Snow equation Eq. (18). The solid curve is Eq. (21). The broken curve is the prediction of Eq. (20). 3 m 3 c (23) We assume that the hydraulic properties of a fracture can be characterized by two effective coefficients, namely a fracture permeability a [L ] and a cross resistance co[L~ ]. The flow rate j per unit width of the fracture is related to the surface pressure gradient V P by the two-dimensional Darcy's law of Equation (14). The seepage velocity v nor­ mal to the fracture induces a pressure drop VP given by 3 1 s S ± ADLER ET AL.

Chen, H. Scher, and B. Berkowitz, Quantitative char­ acterization of pore-scale disorder effects on transport in "homo­ geneous" granular media, Phys. Rev. 041, 108, 2004a. , C. Gallo, H. Scher, and B. Berkowitz, Numerical simu­ lation of non-Fickian transport in geological formations with multiple-scale heterogeneities, Water Resour. 1029/2003WR002, 750, 2004b. , C. Gallo, H. Scher, and B. Berkowitz, Computing 'anom­ alous' contaminant transport in porous media: The CTRW Matlab toolbox, Ground Water, 2005, in press.

C. Gallo, H. Scher, and B. Berkowitz, Computing 'anom­ alous' contaminant transport in porous media: The CTRW Matlab toolbox, Ground Water, 2005, in press. BERKOWITZ AND SCHER 31 Dentz, M , A. Cortis, H. Scher, and B. Berkowitz, Time behavior of solute transport in heterogeneous media: transition from anom­ alous to normal transport, Adv. 002, 2004. , Vol. 13, Springer, New York, 2004. , C. R. Rehfeldt, A critical review of data on field-scale dispersion in aquifers, Water Resour. , 28, 1955-1974, 1992.

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