Fluid flow in fractured rock masses is important for many engineering applications. As fluid moves through the fractures, non-negligible pressure losses occur even at a moderate flow rate where the flow velocity changes. Centrifugal forces arise where fluid flows around bends such as at fracture intersections. These velocity changes consume energy, compromising the linear relationship between flow rate and pressure drop. For the flow in individual fractures, the Forchheimer number, Reynolds number, and critical hydraulic gradients have been used to distinguish between creeping flow, weak inertia, and turbulent flow regimes, but not fracture networks because of their intricate geometry and the erratic flow inside them.

中文翻译：

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惯性对裂隙岩体中流体流动的影响：综合综述

裂隙岩体中的流体流动对于许多工程应用都很重要。当流体流过裂缝时，即使在流速变化的中等流速下也会发生不可忽略的压力损失。当流体围绕弯曲处流动时（例如裂缝交叉处），会产生离心力。这些速度变化会消耗能量，从而损害流量和压降之间的线性关系。对于单个裂缝中的流动，福希海默数、雷诺数和临界水力梯度已用于区分蠕动流、弱惯性和湍流流态，但不能用于区分裂缝网络，因为其复杂的几何形状和内部的不稳定流动。