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针对求解顺序输送管道混油浓度的问题 ,简要分析了管道在不同流态下的混油机理。根据紊流扩散理论 ,考虑到沿管长方向油品温度的变化将引起油品黏度的改变 ,从而将导致管截面局部流速分布和油品扩散系数的改变 ,采用数值积分方法 ,编制了用于求解顺序输送管道动态运行混油段内混油浓度分布 ,以及管道终点截面混油浓度的计算程序。为顺序输送管道混油浓度的计算提供了一个实用可靠的方法
In order to solve the problem of oil mixed concentration of pipeline in order of solution, the oil mixing mechanism of pipeline in different flow regimes is briefly analyzed. According to the theory of turbulent diffusion, taking into account changes in the temperature of the oil along the length of the tube will cause changes in the viscosity of the oil, which will lead to changes in the local velocity distribution of the tube cross section and the oil diffusion coefficient, numerical integration method, Solve the sequence of transmission pipe dynamic mixing section of the mixed oil concentration distribution, as well as the end of the pipeline cross section of the oil concentration calculation program. It provides a practical and reliable method for the calculation of mixed oil concentration in pipeline