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research-article

A thin film Fluid Structure Interaction model for the study of flexible structure dynamics in centrifugal pumps

[+] Author and Article Information
Abdulaleem Albadawi

Post-doctorate Researcher, School of Mechanical and Manufacturing Engineering, Dublin City University, Glasnevin, Dublin, Ireland,
abdulaleem.albadawi@sulzer.com

Mathieu Specklin

Irish Research Council PhD scholar, Sulzer Pump Solutions Ireland Ltd, School of Mechanical and Manufacturing Engineering, Dublin City University, Glasnevin, Dublin, Ireland,
mathieu.specklin2@mail.dcu.ie

Robert Connolly

Hydraulic Design Engineer, Global Technology, Pumps Equipment, Sulzer Pump Solutions Ireland Ltd., Clonard Road, Wexford, Ireland,
abdulaleem.albadawi@sulzer.com

Yan Delaure

Dublin City University, Associate Professor, School of Mechanical and Manufacturing Engineering, Dublin City University, Glasnevin, Dublin, Ireland,
yan.delaure@dcu.ie

1Corresponding author.

ASME doi:10.1115/1.4041759 History: Received May 15, 2018; Revised October 15, 2018

Abstract

This article describes a Fluid-Structure Interaction (FSI) model for the study of flexible cloth-like structures or so called rags in flows through centrifugal pumps. The structural model and its coupling to the flow solver are based on the work of Huang and Sung [1] while the new sharp interface IBM of Specklin and Delauré [2] is used to account for moving rigid boundaries. The solution has been implemented in the open-source library OpenFOAM relying in particular on its PIMPLE segregated Navier-Stokes pressure-velocity coupling and its DES turbulence model. The FSI solver is assessed in terms of its capability to generate consistent deformations and transport of the immersed flexible structures. Two benchmark cases are covered and both involve experimental validation with three-dimensional structural deformations of the rag captured using a Digital Image Correlation technique. Simulations of a rag transported in a centrifugal pump confirm the suitability of the model to inform on the dynamic behavior of immersed structures under practical engineering conditions.

Copyright (c) 2018 by ASME
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