Abstract
The tailing phenomenon in refined oil pipelines leads to an increase in the amount of mixed oil, resulting in significant economic losses. Therefore, it is of great significance to identify the factors that affect tailing, clarify the development rules of tailing oil, and manage the operation of refined oil pipelines. This article proposes a method to modify a one-dimensional (1D) oil mixing model, which takes into account the influence of wall-attached oil detachment rate and trailing oil concentration on tailing. A theoretical model that can describe the asymmetric development of the mixing interface is presented, and the development of the mixing interface under different detachment rates is discussed based on this model. The results show that this model can describe the tailing phenomenon in oil mixing. As the wall-attached oil detachment rate decreases, the length of the mixing zone gradually increases, the amount of mixed oil increases, and the asymmetry of the mixing interface increases.
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