The key challenge faced by engineers is how to design a subsea pipeline to ensure that the production fluid is safely and economically transported from the reservoir all the way downstream to the processing plants. Transient thermal analysis is essential for flow assurance design and operating strategies of deepwater subsea pipelines. This work presents a numerical analysis of heat transport in sandwich pipes. The mathematical models governing the heat energy diffusion-convection transport in the fluid flow and the heat diffusion in the multilayered composite pipeline were solved by means of a boundary element method based on the use of appropriate Green’s functions.

中文翻译：

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多层复合管传热的数值模拟

工程师面临的关键挑战是如何设计海底管道，以确保将生产液安全，经济地从油藏一直输送到下游到加工厂。瞬态热分析对于深水海底管道的流量保证设计和操作策略至关重要。这项工作提出了夹层管传热的数值分析。在适当的格林函数的基础上，采用边界元法求解了控制流体中热能扩散-对流输运和多层复合管道中热扩散的数学模型。