非线性渗流区域井流问题渗流速度的分区研究

Research on unsteady well flow of the specific discharge of the nonlinear regime

为了精确求解两种流态并存区域上井流问题的渗流速度,在非线性渗流区域内对渗流规律中的非线性指数进行了分区研究,通过对水均衡方程用Boltzmann变换进行求解,推导出了线性与非线性渗流区域内渗流速度的解析表达式。

Nonequtlibrium analytical solutions are presented for full penetrating well by incorporating the concept of the existence of a non-Darcy flow regime around the pumping well and a Darcy flow regime away from the well. In order to research the two-regime well flow problems more accurately,the nonlinear exponent has been discussed in details according to the separations of nonlinear domain and the analytical solutions to the problem have been derived in the literature.