前言 盐湖地下卤水一般皆处于近乎停滞状态,属蒸发一开采型地下水,在自然状态下由于重力分异,混合扩散,使其化学组成、密度、粘度等产生空间分布的不均一,加之周边自然条件的差异,更促使地下卤水形成不同的水化学相平衡体系。当开采地下卤水的有用组份时,必然引起不同水化学体系及密度不同的卤水之间的混合流动,称为异重流。对此种异重流体运动规律的研究,将要涉及流体动力学参数,如扩散系 Preface Salt lake underground brine are generally near stagnation, is a type of exploitation of groundwater evaporation, in the natural state due to gravity differentiation, mixed diffusion, the chemical composition, density, viscosity and other spatial distribution of uneven distribution, coupled with the surrounding natural conditions The difference also prompted underground brine to form different water chemical phase equilibrium system. When exploiting the useful components of underground brine, it inevitably causes mixed flows between different hydration systems and densities of different brine, which are called heavy flows. The study of the laws of such heavy-weight fluids will involve hydrodynamic parameters such as diffusion