TITLE:
Theoretical Evaluation of Two-Phase Flow in a Horizontal Duct with Leaks
AUTHORS:
Morgana de Vasconcellos Araújo, Severino Rodrigues de Farias Neto, Antonio Gilson Barbosa de Lima
KEYWORDS:
Two-Phase Flow; Numerical Simulation; Leakage; Pipeline
JOURNAL NAME:
Advances in Chemical Engineering and Science,
Vol.3 No.4A,
September
25,
2013
ABSTRACT: The transport of oil and its derivates are done, mostly, by pipeline. The time to detect leaks has to be short for pre-venting big disasters in the nature and decreasing losses for industries. The techniques available for leak detection vary from visual inspection to the use of computational techniques such as mathematical modeling. This paper aims to study the fluid dynamics of two-phase flow (water-oil) in the pipe with leakage. The equations of the mass and momentum conservation are numerically solved by using the ANSYSCFX commercial code with the aid of a structured mesh of a horizontal pipe with three holes of leaks. The Eulerian-Eulerian model was adopted considering the oil as continuous phase and water as dispersed phase, and constant fluid properties. With profiles of pressure and volume fraction along the time in the pipe, the influence of leakage on the single-phase (oil) and two-phase (water-oil) was evaluated.