Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
NUMERICAL AND EXPERIMENTAL STUDY OF FREE SURFACE FLOWS IN A ROCK-FLOW CELL
Submission Author:
Alex Vinicius Lopes Machado , PR
Co-Authors:
Fábio Schneider, PAULO HENRIQUE DIAS DOS SANTOS, Rigoberto Morales, Xianwei Zhang, Amadeu Sum, Alex Vinicius Lopes Machado
Presenter: Alex Vinicius Lopes Machado
doi://10.26678/ABCM.COBEM2017.COB17-1718
Abstract
In this paper is proposed a new algorithm using the OpenFOAM® C++ library which solves the volume-of-fluid equations in moving meshes using isoAdvector, a recently published approach to geometrically reconstruct and advect fluid interfaces. The motivation for addressing this problem is to numerically simulate the free surface in rock-flow cells, a benchtop testing used to study hydrates kinetics formation. Hydrates particles agglomeration and blockage is one of the most concerns in deep-sea petroleum production. Rock-flow cell rig experiments have been shown to be suitable to capture most of the hydrates formation related phenomena. However, a vast issue in all studies conducted so far is how to correlate the data observed experimentally with real flow pipelines. Computational fluid dynamics methods can play a crucial role in given detailed information and deepen the understanding of the flow behavior in rock-flow cells, once the method is validated by experimental results. In order to ensure the reliability of our new algorithm, experiments were carried out with water and air in a rock-flow cell with different liquid loadings and rotational speeds. Flow patterns which usually occur in multiphase flows were observed in the results, such as stratified and slug flow patterns. The numerical approach was capable of simulating the experimental results with good agreement.
Keywords
Hydrates, multiphase flow, rock -flow cells, VOF, isoAdvector
