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首页> 外文会议>Offshore Technology Conference >Effect of Boundary Conditions, Flow Rate, Slug Length, and Slug Frequency on Slug Flow Induced Vibration in a Pipeline Span
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Effect of Boundary Conditions, Flow Rate, Slug Length, and Slug Frequency on Slug Flow Induced Vibration in a Pipeline Span

机译：边界条件，流量，段塞长度和段塞频率对管道跨段段塞引起的振动的影响

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This paper expands on the work described in OTC 22935 (Slug Flow Induced Vibration in a Pipeline Span, a Jumper, and aRiser Section [1]). Different boundary conditions of the pipeline span, flow rates, slug lengths, and slug frequencies areinvestigated for slug flow induced vibration of the pipeline span using the methodology proposed in OTC 22935. Coupledthree-dimensional CFD of multiphase flow and transient nonlinear Computational Structural Dynamics (CSD) areimplemented in fluid domain and structural domain. Recommended guidelines for reducing slug flow induced vibration inpipeline spans are generated from this investigation. Recommended guidelines for slug flow analysis using CFD alone orusing coupled CFD with CSD are also presented.This paper has important and practical applications in designing pipeline spans and field operation of flow assurance to resistand reduce slug flow induced vibrations and fatigue damage due to slug flows in pipelines.The results illustrate the process of slug formation and decay inside the pipe, and the dynamic response of the pipe, includingdynamic stresses and frequencies for different boundary conditions of the pipeline span, flow rates, slug lengths, and slugfrequencies. The effect of above variables on slug flow induced vibration of the pipeline span has been quantified in detail.This paper quantifies slug formation and decay in a pipe while the pipe is also vibrating in response to this slug flow,accounting for the interaction between the two domains, for different boundary conditions of the pipeline span, flow rates,slug lengths, and slug frequencies. This paper provides a practical and very realistic tool for analyzing slug flow inducedvibration and its induced fatigue damage and potential resonance response in pipeline spans. Important guidelines for betterdesigns of pipeline spans and better management of flow assurance in field operation to resist and reduce slug flow inducedvibration are proposed.
机译：本文扩展了OTC 22935（管道跨度，跳线和管道中的塞流引起的振动）中描述的工作。 立管部分[1]）。管道跨度，流速，段塞长度和段塞频率的不同边界条件为 使用OTC 22935中提出的方法研究了塞子流引起的管道跨度振动。 多相流的三维CFD和瞬态非线性计算结构动力学（CSD） 在流体域和结构域中实现。推荐的准则，用于减少弹药流引起的振动。 管道跨度是根据此调查生成的。单独或使用CFD进行团状流分析的建议指南 还介绍了将CFD与CSD结合使用的方法。 本文在设计管道跨度和现场保证流量保证方面具有重要的实际应用。 并减少由于弹丸在管道中的流动而引起的弹丸流动引起的振动和疲劳损伤。 结果说明了在管道内部的团状形成和腐烂的过程，以及管道的动态响应，包括 管道跨度，流速，段塞长度和段塞的不同边界条件的动态应力和频率 频率。以上变量对由塞流引起的管道跨度振动的影响已得到详细量化。 本文量化了在管道还响应于这种团状流而振动的同时，在管道中团状物的形成和衰变， 考虑到两个域之间的相互作用，对于管道跨度的不同边界条件，流量， 弹头的长度和弹头的频率。本文提供了一种实用且非常现实的工具来分析所产生的团状流 振动及其在管道跨度中引起的疲劳损伤和潜在的共振响应。更好的重要准则 管道跨度的设计和现场操作中的流量保证的更好管理，以防止和减少所产生的团状流 提出了振动。

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