Abstract
This study focused on gas/Newtonian and gas/non-Newtonian two-phase horizontal fluid flow behavior by analyzing their flow regime identification and flow structural analysis on a horizontal flow loop apparatus. This involved the recognition of two-phase flow regimes for this flow loop and validation with existing flow maps in the literature. In addition, the study included flow pattern identification via wavelet analysis for gas/Newtonian and gas/non-Newtonian two-phase fluid flow in a horizontal flow loop apparatus. Furthermore, the study was extended to the detailed examination of slug frequency in the presence of air/Newtonian and air/non-Newtonian fluid flow, and the predicted slug frequency model was applied to the studied systems. The obtained results suggest that the flow regime maps and slug frequency analysis have a significant impact. The obtained pressure sensor results indicate that the experimental setup could not provide high-frequency and high-resolution data; nevertheless, wavelet decomposition and wavelet norm entropy were calculated. It offered recognizable flow characteristics for bubble, bubble-elongated bubble, and slug flow patterns. Therefore, this study can provide deep insight into intricate multiphase flow patterns, and the wavelet could potentially be applied for flow analysis in oil and gas pipelines.
Highlights
Multiphase flows are considered as complicated flow phenomena compared to a single flow [1].There are essential features of multiphase flows whose modeling outcome is contentious and structural explanation is still unexplored
In the Taitel & Dukler [7] flow map for a horizontal pipe in Figure 6, most of the experimental data points fall in the respective flow regime area
The flow maps of both systems were established, and the type of flow regimes were determined for both air/Newtonian air/non-Newtonian fluid flow were conditions
Summary
Multiphase flows are considered as complicated flow phenomena compared to a single flow [1].There are essential features of multiphase flows whose modeling outcome is contentious and structural explanation is still unexplored. Multiphase flows are considered as complicated flow phenomena compared to a single flow [1]. The most common type of multiphase flow in almost all chemical, petroleum, and production industries is the two-phase gas/liquid flow [2,3]. Different forms of flow patterns may be observed when two or more phases flow simultaneously [2]. In pipe cross-sections, unpredictable turbulent flow structures generating highly asymmetric volume distribution are a challenge in experiential investigations [4,5]. This kind of unstable flow condition complicates the measurement process and may create difficulties in capturing actual flow conditions. There are instances where the existing theoretical solution or experimental results cannot describe specific physical properties [1,6]
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