本文针对单管外压式反渗透装置,在被处理溶液处于层流状态下,提出了其流动的数学模型,结合具体边界条件,应用Runge—Kutta数值解法,通过电子计算机获得了在该装置内溶液的速度分布表达式。与此同时,应用速度测针测量了装置内不同位置上的轴向速度分布。结果表明,数学模型与实验数据有很好的一致性。 In this paper, a single tube external pressure reverse osmosis device, the solution under the laminar flow state, put forward the mathematical model of its flow, combined with the specific boundary conditions, the application of Runge-Kutta numerical solution, obtained by electronic computer within the device Solution velocity distribution expression. At the same time, the axial velocity distribution at different positions in the device was measured using a speed stylus. The results show that the mathematical model is in good agreement with the experimental data.