Numerical Simulation of Dynamic Fluid-Structure Interaction with Elastic Structure–Rigid Obstacle Contact

Yakhlef, Othman; Murea, Cornel Marius

doi:10.3390/fluids6020051

Cited by 5 publications

(3 citation statements)

References 37 publications

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“…Nguyen et al [16] used the Navier-Stokes model for three-phase flows and studied the exit process of projectiles and the collapse of a cavity containing entrained water under the effect of the free surface. Moshari et al [17] developed a finite volume discretization to determine the nonlinear free surface deformation during the water exit of a circular cylinder, while Murea et al [18] solved a dynamic fluidstructure problem using the Navier-Stokes equations to compute the free surface force. Masaki et al [19] performed a computational fluid dynamics (CFD) study and experimental work to examine the free decay of a platform.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigation of Cavity Structure Forced Water Exit from Calm Water at Constant Lifting Velocity

Zan

Ding

et al. 2023

JMSE

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In marine engineering, the installation of structures inevitably involves the process of water exit. This paper studies the vertical force, the shape of the free surface, and the evolution of the water entrained in a cavity in the process of lifting a structure, so as to provide guidance for practical engineering operations. Using a 1:8 experimental model, this paper derives the governing equations based on the Reynolds-averaged Navier–Stokes approach and uses the volume of fluid method to capture the shape change of the free surface. The vertical forces obtained at different lifting speeds are found to be in good agreement with the results of previous model tests. The results show that the numerical simulation method and mesh generation described in this paper can simulate the changes in the physical quantities associated with the structure in the process of water exit. The vertical force on the structure increases nonlinearly as the lifting speed rises, and the maximum lifting speed is conservatively estimated to be 0.034 m/s using the Det Norske Veritas recommended method. The maximum vertical force occurs as the whole structure leaves the water. The water entrained in the structure is mainly located at the sides and bottom. The lifting velocity plays an important role in the water exit process. The water exit force first increases and then decreases to a stable value as the lifting velocity increases, while the maximum water exit force increases nonlinearly.

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Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigation of Cavity Structure Forced Water Exit from Calm Water at Constant Lifting Velocity

Zan

Ding

et al. 2023

JMSE

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“…We add also the Nitsche based methods [1], [2]. Updated Lagrangian methods for elasticity with contact are described in [18] and [11].…”

Section: Introductionmentioning

confidence: 99%

Impact/Contact of Elastic Body on a Moving Foundation

Murea

2023

AnnalsARSciMath

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“…In addition, a special MMT was proposed, which uses the idea of a continuous method to solve nonlinear elastic equations effectively. Yakhlef Othman [15] proposed an implicit scheme to solve the dynamic fluid structure interaction problem through a step-by-step program. For fluid equations (Stokes or Navier-Stokes), the virtual domain method with penalty is used.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Simulation Study of Pressure Pulsations during Hose Pump Operation

Wang

Zhang

et al. 2021

Processes

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An adventitious flow field has a great impact on the operational reliability of pumps; therefore, it is important to study pump flow characteristics to reduce the noise, vibration, and cavitation performance of pumps. To study the pressure fluctuation characteristics of the hose pump, a three-dimensional two-way fluid structure coupling model of the hose pump was established. The transient structural module, fluid flow (fluent) module, and system coupling module of ANSYS Workbench 19.0 were used to simulate the unsteady multiple working conditions of the hose pump. The accuracy and reliability of the calculation results from the fluid solid coupling simulation were verified via experimentation. The results show that the roller pass frequency is the main frequency of the pressure fluctuation at the outlet of the hose pump. When the plane of the deformation recovery area is small, the pressure pulsation amplitude is large, and the outlet pressure and speed are large. Due to the irregular backflow of the fluid, stall zones of different sizes form, the outlet pressure is closer to a sinusoid when there is no pressure. The higher the rotating speed is, the faster the pressure roller leaving the hose, the higher the pressure pulsation, and the larger the stall zone. Therefore, the best way to reduce the pressure pulsation in the pump is to optimize the geometry of the pressure roller and change the outlet angle of the hose.

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Numerical Simulation of Dynamic Fluid-Structure Interaction with Elastic Structure–Rigid Obstacle Contact

Cited by 5 publications

References 37 publications

Experimental and Numerical Investigation of Cavity Structure Forced Water Exit from Calm Water at Constant Lifting Velocity

Experimental and Numerical Investigation of Cavity Structure Forced Water Exit from Calm Water at Constant Lifting Velocity

Impact/Contact of Elastic Body on a Moving Foundation

Experimental and Numerical Simulation Study of Pressure Pulsations during Hose Pump Operation

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