Low Pressure Experimental Validation of Low-Dimensional Analytical Model for Air–Water Two-Phase Transient Flow in Horizontal Pipelines
| Autor: | Amine Meziou, Wai Lam Loh, Karolos M. Grigoriadis, Taoufik Wassar, Nguyen Dinh Tam, Yingjie Tang, Matthew A. Franchek, Hamdi Mnasri, Thiam Teik Wan |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0209 industrial biotechnology
multiphase flow Flow (psychology) 02 engineering and technology 01 natural sciences 010305 fluids & plasmas Physics::Fluid Dynamics 020901 industrial engineering & automation experimental validation 0103 physical sciences Fluid Flow and Transfer Processes QC120-168.85 Mechanical Engineering Multiphase flow Mechanics Condensed Matter Physics reduced-order modeling Volumetric flow rate Pipeline transport Descriptive and experimental mechanics OLGA Compressibility Dissipative system Thermodynamics Environmental science Transient (oscillation) QC310.15-319 Bar (unit) |
| Zdroj: | Fluids Volume 6 Issue 6 Fluids, Vol 6, Iss 220, p 220 (2021) |
| ISSN: | 2311-5521 |
| Popis: | This paper presents a low-pressure experimental validation of a two-phase transient pipeline flow model. Measured pressure and flow rate data are collected for slug and froth flow patterns at the low pressure of 6 bar at the National University of Singapore Multiphase Flow Loop facility. The analyzed low-dimensional model proposed in comprises a steady-state multiphase flow model in series with a linear dynamic model capturing the flow transients. The model is based on a dissipative distributed parameter model for transient flow in transmission lines employing equivalent fluid properties. These parameters are based solely on the flowing conditions, fluid properties and pipeline geometry. OLGA simulations are employed as an independent method to validate the low-dimension model. Both low-dimensional and OLGA models are evaluated based on the estimated two-phase pressure transients for varying gas volume fraction (GVF). Both models estimated the two-phase flow transient pressure within 5% mean absolute percent error of the laboratory data. Additionally, an unavoidable presence of entrained air within a pipeline is confirmed for the case of 0% GVF as evidenced by the pressure transient estimation. Thus, dampened oscillations in the simulated 0% GVF case exists owing to an increase in the fluid compressibility. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|