Fluid‐structure interaction in two‐phase flow using a discrete forcing method

Fluid-structure interaction (FSI) is the interaction of some movable or deformable structure with an internal or surrounding fluid flow. Therefore, fluid-structure interaction problems are too complex to solve analytically and so they have to be analysed by means of experiments or numerical simulation. This paper provides an overview of numerical methods for fluid-structure interaction evaluation in an draft IAEA technical guideline: large eddy simulation (LES), direct numerical simulation (DNS), Lattice-Boltzmann method (LBM), finite element method (FEM) and computational fluid dynamics (CFD) method. In addition to providing general applications of numerical methods for fluid-structure interaction evaluation, the paper also describes some cases applied for problems associated with single-phase flow and two-phase flow in nuclear power plants.

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A hybrid level set–front tracking finite element approach for fluid–structure interaction and two-phase flow applications

Journal of Computational Physics ◽

10.1016/j.jcp.2013.08.018 ◽

2013 ◽

Vol 255 ◽

pp. 228-244 ◽

Cited By ~ 17

Author(s):

Steffen Basting ◽

Martin Weismann

Keyword(s):

Finite Element ◽

Level Set ◽

Two Phase Flow ◽

Fluid Structure Interaction ◽

Front Tracking ◽

Phase Flow ◽

Two Phase ◽

Finite Element Approach ◽

Structure Interaction ◽

Element Approach

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Coupling Analysis of Fluid-Structure Interaction and Flow Erosion of Gas-Solid Flow in Elbow Pipe

Advances in Mechanical Engineering ◽

10.1155/2014/815945 ◽

2014 ◽

Vol 6 ◽

pp. 815945 ◽

Cited By ~ 3

Author(s):

Hongjun Zhu ◽

Hongnan Zhao ◽

Qian Pan ◽

Xue Li

Keyword(s):

Erosion Rate ◽

Structural Changes ◽

Fluid Structure Interaction ◽

Fluid Phase ◽

Diameter Ratio ◽

Pipe Diameter ◽

Discrete Phase Model ◽

Two Phase ◽

Fluid Structure ◽

Structure Interaction

A numerical simulation has been conducted to investigate flow erosion and pipe deformation of elbow in gas-solid two-phase flow. The motion of the continuous fluid phase is captured based on calculating three-dimensional Reynolds-averaged-Navier-Stokes (RANS) equations, while the kinematics and trajectory of the discrete particles are evaluated by discrete phase model (DPM), and a fluid-structure interaction (FSI) computational model is adopted to calculate the pipe deformation. The effects of inlet velocity, pipe diameter, and the ratio of curvature and diameter on flow feature, erosion rate, and deformation of elbow are analyzed based on a series of numerical simulations. The numerical results show that flow field, erosion rate, and deformation of elbow are all sensitive to the structural changes and inlet condition changes. Higher inlet rate, smaller curvature diameter ratio, or smaller pipe diameter leads to greater deformation, while slower inlet rate, larger curvature diameter ratio, and larger pipe diameter can weaken flow erosion.

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Fluid structure behaviour in gas-oil two-phase flow in a moderately large diameter vertical pipe

Chemical Engineering Science ◽

10.1016/j.ces.2018.04.075 ◽

2018 ◽

Vol 187 ◽

pp. 377-390 ◽

Cited By ~ 6

Author(s):

Rajab Omar ◽

Buddhika Hewakandamby ◽

Abdelwahid Azzi ◽

Barry Azzopardi

Keyword(s):

Two Phase Flow ◽

Large Diameter ◽

Phase Flow ◽

Gas Oil ◽

Vertical Pipe ◽

Two Phase ◽

Fluid Structure

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Strength Analysis of Oil Tanker Under Numerical Wave

Volume 2: Development and Applications in Computational Fluid Dynamics; Industrial and Environmental Applications of Fluid Mechanics; Fluid Measurement and Instrumentation; Cavitation and Phase Change ◽

10.1115/fedsm2018-83436 ◽

2018 ◽

Author(s):

Cheng Shu ◽

Li Hong ◽

Zhang Dongxu

Keyword(s):

Structural Strength ◽

Fluid Structure Interaction ◽

Ocean Waves ◽

Wave Action ◽

Stokes Wave ◽

Strength Analysis ◽

Two Phase ◽

Fluid Structure ◽

Structure Interaction ◽

Equivalent Load

The strength of an oil carrier is generally checked using static load or equivalent load of wave action in accordance with relevant specifications. In order to accurately calculate the stress and the deformation of an oil carrier under wave action, the fluid-structure interaction system in the platform Workbench is used in this work. And, the pressure-based solver, the two-phase flow model and UDF (User Defined Function) in the software FLUENT are used to compile the three-order Stokes Wave so as to simulate ocean waves. Forces acting on the surface of the oil carrier are obtained by calculating the flow field, and the structural strength of the carrier is then investigated under sagging and hogging conditions. The results show that: the three-order Stokes Wave matches well with the theoretical result, and it is feasible to research the strength of the oil carrier by generating waves using this numerical method. In addition, the method of fluid-structure interaction is applied to investigate the structural strength of the fully-loaded carrier under sagging and hogging conditions.

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FLUID-STRUCTURE INTERACTION ANALYSIS APPLIED TO OIL CONTAINMENT BOOMS

International Oil Spill Conference Proceedings ◽

10.7901/2169-3358-2005-1-585 ◽

2005 ◽

Vol 2005 (1) ◽

pp. 585-588 ◽

Cited By ~ 1

Author(s):

Azin Amini ◽

Maziar Mahzari ◽

Erik Bollaert ◽

Anton Schleiss

Keyword(s):

Interaction Analysis ◽

Fluid Structure Interaction ◽

Flow Characteristics ◽

Two Phase ◽

Ongoing Research ◽

Fluid Structure ◽

Structure Interaction ◽

Oil Slick ◽

Flexible Barrier ◽

Waves And Currents

ABSTRACT The most important aspect of the ongoing research project is to develop numerical coupled hydraulic-structural analysis models of oil containment booms. This should be later applicable for investigation of the efficiency limits of a new system of oil spill containment booms called Cavalli system. This system consists of surrounding the oil slick with a special boom and protecting it against waves and currents. It provides the possibility to divide the encircled area in several smaller circles and to increase the thickness of the oil slick inside. The whole system consists of a two-phase fluid (oil and water) and a boom that should be structurally stable for the pressure loads imposed by the fluids. It is finally important to evaluate the behaviour of the flexible skirt under different wave and current conditions, as almost all of existing research in the field have been undertaken for rigid barriers. To assess the behaviour of a flexible barrier fluid-structure interaction analysis is to be conducted. The problem is considered as a fluid-structure interaction problem as the boom usually undergoes large deformations and rotations, which modifies the flow characteristics during operation that is not the case for a rigid boom.

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