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首页> 外文期刊>American Journal of Engineering Research >A Validation Method of Computational Fluid Dynamics (CFD) Simulation against Experimental Data of Transient Flow In Pipes System
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A Validation Method of Computational Fluid Dynamics (CFD) Simulation against Experimental Data of Transient Flow In Pipes System

机译：针对管道系统瞬态流动实验数据的计算流体力学（CFD）仿真验证方法

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摘要

Computational fluid dynamics (CFD) has become a significant engineering and technology design tool for modelling and analysis of incompressible and compressible flows in pipes. CFD has gained relevancy by providing cost-effective means of simulating real flows by the numerical solu tions of the governing equations of fluid dynamics. CFD is largely depended on currently in taking decisions in fluids flows scenarios either closed or opened channels. Transients flow phenomena occurrence in oil, gas and water pipelines is inevitable due to some complex pipes network set-up, the sudden closure of control valves or unexpected failure of mechanical systems such as pumps or compressors as the case may be. Using CFD software to simulate transient's flow in pipeline could be demanding for effective and efficient predictions. This research paper is aimed at a method of CFD simulation results validation against published experimental transient data. CFD software such as applied flow technology (AFT) Impulse 4.0 was adopted as a case study for this research paper. The experimental data and boundary conditions were closely maintained to perform the transient's simulation on AFT Impulse 4.0 workspace. Results obtained from the CFD simulation of two transients' flows scenarios were validated with reasonable convergence with some published experimental data from the Hydraulic Engineering Research Institute (Institute cerceteriHidrotehnice – I.C.H.). It was a novelty that validation of published experimental data against CFD simulated results establishes cost -effectiveness and significant time reduction in testing and evaluation flow predictions in pipe systems at the design stage. Thus, this CFD software validation method against experimental results showca sesthe practicability, applicability and accep tability of estimating the credibility of fluid modelling commercial software.
机译：计算流体动力学（CFD）已成为一种重要的工程和技术设计工具，用于建模和分析管道中不可压缩和可压缩的流动。 CFD通过提供经济有效的方法来模拟实际流量，从而获得了相关性，该方法通过流体动力学控制方程的数值解来模拟实际流量。 CFD在很大程度上取决于当前在封闭或开放通道的流体流动场景中的决策。由于某些复杂的管网设置，控制阀的突然关闭或机械系统（如泵或压缩机）的意外故障，不可避免地会在石油，天然气和水的管道中发生瞬态流动现象。使用CFD软件模拟管道中的瞬态流量可能需要有效的预测。本文旨在针对已发布的实验瞬态数据进行CFD仿真结果验证的方法。本文采用CFD软件（例如应用流量技术（AFT）脉冲4.0）作为案例研究。紧密保持实验数据和边界条件，以在AFT Impulse 4.0工作区上进行瞬态仿真。从两个瞬态流量情景的CFD模拟获得的结果已通过合理的收敛性得到了验证，并与水利工程研究所（Institute cerceteriHidrotehnice – I.C.H.）发布的一些实验数据进行了合理的收敛。新颖的是，根据CFD模拟结果验证已发布的实验数据可在设计阶段在管道系统的测试和评估流量预测中建立成本效益并显着减少时间。因此，这种针对实验结果的CFD软件验证方法显示了评估流体建模商业软件信誉的实用性，适用性和可接受性。

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