Numerical Study on Minor Leak for Pressure-Driven Flow in Straight Pipe and 90° Elbow Transporting Different Media
Year: 2026
Type: article
Abstract: Pipeline leakage is a common issue in many pressurized pipeline systems, with significant hazards, making it a current research hotspot. To reveal the fundamental characteristics of leakage in straight pipelines and 90° elbows transporting different media and thereby predict leakage locations, this paper conducts numerical calculations of the internal flow, while also predicting the pipeline leakage location monitoring model. The study finds that under air medium conditions, the nonlinear function model demonstrates excellent prediction accuracy, with R2 > 0.99 for the water3 condition. Under water medium conditions, the model’s fitting performance gradually weakens with increasing inlet pressure, with R2 dropping to 0.77. For a bent pipe, when air is used as the medium, the pressure peak at the large bend angle increases significantly under high inlet pressure. In contrast, when water is the medium, the local pressure reconstruction effect in the bent pipe exhibits a linear strengthening trend as the inlet pressure increases.
Source: Processes
DOI: 10.3390/pr14020304
Authors: Liang-Huai Tong, Yuan-Fan Zhu, Hui-Fan Huang, Yan-Juan Zhao, Yu-Liang Zhang
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,896
OpenAlex ID: W7124272195