Large‐Eddy Simulation of Oil‐Water Annular Flow in Eccentric Vertical Pipes,Chemical Engineering & Technology

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Large‐Eddy Simulation of Oil‐Water Annular Flow in Eccentric Vertical Pipes
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-10-29 , DOI: 10.1002/ceat.202000361
Andhros G. Silva ₁ , Deovaldo de Moraes ₂ , Saleh Al Arni ₃ , Carlo Solisio ₄ , Attilio Converti ₄ , Ricardo P. S. Oliveira ₅ , Ardson S. Vianna ₁

Affiliation

One of the difficulties related to oil exploration is transporting heavy oil since its high viscosity causes high‐pressure drop and energy consumption. In order to save energy, the core annular flow (CAF) can be applied where a two‐phase annular flow occurs, with peripheral water flowing offering a reduction in energy expenditure. The multiphase flow was studied experimentally in a simple purpose‐built unit. To theoretically handle the CAF, computational fluid dynamics simulations were done with the commercial package Ansys Fluent. The flow was considered turbulent, isothermal, incompressible, and 3D, and both stationary and transient cases were evaluated. The volume‐of‐fluid model was adopted for the multiphase system, and water/oil interface and turbulence phenomena were well predicted.

中文翻译：

偏心垂直管中油水环流的大涡模拟

与石油勘探有关的困难之一是运输重油，因为其高粘度会导致高压降和能耗。为了节省能量，可在发生两相环形流的地方应用堆芯环形流（CAF），外围水流可减少能源消耗。在一个简单的专用单元中对多相流进行了实验研究。为了从理论上处理CAF，使用商业软件包Ansys Fluent进行了计算流体动力学模拟。流动被认为是湍流的，等温的，不可压缩的和3D的，并评估了稳态和瞬态情况。多相系统采用了流体体积模型，对水/油界面和湍流现象进行了很好的预测。

更新日期：2020-12-14

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