Analytical and CFD analysis investigation of fluid-structure interaction during water hammer for straight pipe line

2021 ◽  
Vol 194 ◽  
pp. 104528
Author(s):  
M. Kandil ◽  
A. Kamel ◽  
M. El-Sayed
Keyword(s):  
Fluid Structure Interaction ◽  
Water Hammer ◽  
Cfd Analysis ◽  
Straight Pipe ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Pipe Line

Offshore Platform Fluid Structure Interaction Simulation

2012 ◽  
Author(s):  
Ali Marzban ◽  
Murthy Lakshmiraju ◽  
Nigel Richardson ◽  
Mike Henneke ◽  
Guangyu Wu ◽  
...  
Keyword(s):  
Fluid Structure Interaction ◽  
Offshore Platform ◽  
Material Behavior ◽  
Nonlinear Material ◽  
Structural Deformation ◽  
Fe Model ◽  
Cfd Analysis ◽  
Time Step ◽  
Fluid Structure ◽  
Structure Interaction

In this study a one-way coupled fluid-structure interaction (FSI) between ocean waves and a simplified offshore platform deck structure was modeled. The FSI model consists of a Volume of Fluid (VOF) based hydrodynamics model, a structural model and an interface to synchronize data between these two. A Computational Fluid Dynamics (CFD) analysis was used to capture the breaking wave and impact behavior of the fluid on the structure using commercially available software STAR-CCM+. A 3D Finite Element (FE) model of the platform deck developed in ABAQUS was used to determine the deflection of the structure due to hydrodynamic loads. Nonlinear material behavior was used for all structural parts in the FE model. Transient dynamic structural analysis and CFD analysis were coupled by transferring the CFD-predicted pressure distribution to the structural part in each time step using the co-simulation capabilities of STAR-CCM+ and ABAQUS. The one-way FSI model was applied to investigate the possible physical causes of observed wave damage of an offshore platform deck during a hurricane. It was demonstrated that with proper physical conditions/configurations, the FSI model could reproduce a structural deformation comparable to field measurement and provide valuable insight for forensic analysis.

Numerical Simulation of Fluid-Structure Interaction with Water Hammer in a Vertical Penstock Subjected to High Water Head

2013 ◽  
Vol 860-863 ◽  
pp. 1530-1534
Author(s):  
Hong Ming Zhang ◽  
Li Xiang Zhang
Keyword(s):  
Interaction Analysis ◽  
Fluid Structure Interaction ◽  
Shell Element ◽  
Water Source ◽  
High Water ◽  
Water Hammer ◽  
Curvilinear Coordinates ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Weakly Compressible

The theoretical model of weakly compressible coupling water hammer was established and a FSI program code was developed for coupled weakly compressible water with penstock movement. It combines the weakly compressible water source CFD code and FEM shell element code. The shell element based on orthogonal curvilinear coordinates was completed in FEAP. Meanwhile, the turbulence model in OpenFoam class library was called by using object-oriented technology. This code takes into account both the weak compressibility of water and fluid turbulence characteristics. Using this code, a fluid structure interaction analysis with water hammer was completed. The numerical results agree well with the field test results.

Analysis of Coupled Water Hammer Vibration Equation of Improvement

2014 ◽  
Vol 926-930 ◽  
pp. 2986-2991
Author(s):  
Jian Bing Zhu ◽  
Zhi Min Su ◽  
Zhi Fang Tian ◽  
Xue Lu ◽  
Cheng Jie Jiang
Keyword(s):  
Continuity Equation ◽  
Fluid Structure Interaction ◽  
Water Hammer ◽  
Coupling Vibration ◽  
Fluid Structure ◽  
Vibration Equation ◽  
Structure Interaction ◽  
Continuity Equations

This paper further analyzes some existent problems of coupling vibration equations of water hammer, based on the improved continuity equation, it is derived simply for calculating coupled water hammer vibration, comparison with continuity equation that is to be used widely, the new continuity equation is basically consistent with commonly used continuity equations, so, the improved continuity equation can be used to calculate water hammer based on fluid-structure interaction (FSI).

scholarly journals One-Way Fluid Structure Interaction of a Go-Kart Spoiler Using CFD Analysis

Proceedings ◽  
2020 ◽  
Vol 49 (1) ◽  
pp. 51
Author(s):  
Mohammad AL-Rawi ◽  
Abderrahmane Oumssount
Keyword(s):  
Fuel Economy ◽  
Fluid Structure Interaction ◽  
Cfd Analysis ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Recreational Vehicles ◽  
Rear Spoiler ◽  
Applied Forces ◽  
Air Flow Velocity ◽  
Velocity Pressure

The spoiler on a go-kart is required to prevent the vehicle becoming airborne at speeds of 80 km/h or more. An optimal spoiler design balances this safety aspect with speed and fuel economy. This paper reports the results of a project to improve the aerodynamic aspects of a go-kart spoiler design using CFD Analysis. We investigated the design of a rear spoiler with three proposed angles (θ1 = 9.5°, θ2 = 19.5°, θ3 = 29.5°). The drag force produced by each of the three designs is compared. Different computational results are discussed such as the air flow velocity, pressure and the applied forces in terms of CFD analysis using one-way fluid structure interaction (one-way FSI) to determine the spoiler stress, strain and drag coefficient. The findings of this paper have implications for the leisure and tourism industries, and may be applicable to other recreational vehicles’ spoilers.

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