About Finite Element Analysis of Fluid – Structure Interaction Problems

Belostosky, Alexander M.; Akimov, Pavel A.; Kaytukov, Taymuraz B.; Afanasyeva, Irina N.; Usmanov, Anton R.; Scherbina, Sergey V.; Vershinin, Vladislav V.

doi:10.1016/j.proeng.2014.12.008

Cited by 17 publications

(5 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The algorithm is based on swarm intelligence evolved from the social behavior and social interaction of birds, and birds share information among groups through foraging behavior, alert behavior and flying behavior in their living habits 18 , 19 . Studying these social behaviors and interactions can effectively optimize the problem, and has the advantages of fast convergence and avoiding falling into local optimum 20 , 21 . Simplify the social behavior of birds into the following rules.…”

Section: Methodsmentioning

confidence: 99%

Structure improvement and parameter optimization of micro flow control valve

Chen

et al. 2023

Sci Rep

View full text Add to dashboard Cite

Aiming at the sticking phenomenon between the valve core and the valve sleeve when the valve core moves, and to solve the problem that the torque required to drive the valve core to rotate is large, the fluid–solid coupling simulation analysis of the valve core is carried out in this study, and then the valve core structure of the valve core is improved and its parameters are optimized based on the bird colony algorithm. The combination structure of the valve sleeve and valve core is studied, and the fluid–solid coupling model is established by Ansys WorkBench, and the static structure simulation analysis of valve sleeve and valve core before and after structural improvement and parameter optimization is performed. The mathematical models of triangular buffer tank, U-shaped buffer tank and combined buffer tank are established, and the structural parameters of the combined buffer tank are optimized by bird swarm optimization. The results demonstrate the triangular buffer tank has good depressurization effect but great impact, the pressure of the U-shaped buffer tank is stable and gentle but the depressurization effect is not ideal, while the combined buffer tank has obvious depressurization effect and good stability. At the same time, the optimal structural parameters of the combined buffer tank are cut-in angle of 72, plane angle of 60 and depth of 1.65 mm. The excellent structure and parameters of the combined buffer groove are obtained, so that the pressure buffer of the regulating valve at the key position of the valve port achieves the best effect, and an effective solution is provided for solving the sticking problem of the valve core of the regulating valve when working.

show abstract

Section: Methodsmentioning

confidence: 99%

Structure improvement and parameter optimization of micro flow control valve

Chen

et al. 2023

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Therefore, the upper part of the model was set as a permeable layer, while the sides and bottom were set as impermeable layers. For the mechanical boundary, fixed constraint boundary conditions were applied to the bottom of the excavation, no boundary conditions were applied to the top, and normal stress constraint boundary conditions were applied to the other four sides [ 37 , 38 ].…”

Section: Modelingmentioning

confidence: 99%

Research on the Deformation Law of Foundation Excavation and Support Based on Fluid–Solid Coupling Theory

Xia,

Zhao,

Wang

et al. 2024

Sensors

View full text Add to dashboard Cite

To investigate the impact of underground water seepage and soil stress fields on the deformation of excavation and support structures, this study initially identified the key influencing factors on excavation deformation. Subsequently, through a finite element simulation analysis using Plaxis, this study explored the effects of critical factors, such as the excavation support form, groundwater lowering depth, permeability coefficient, excavation layer, and sequence on excavation deformation. Furthermore, a comprehensive consideration of various adverse factors was integrated to establish excavation support early warning thresholds, and optimal dewatering strategies. Finally, this study validated the simulation analysis through an on-site in situ testing with wireless sensors in the context of a physical construction site. The research results indicate that the internal support system within the excavation piles exhibited better stability compared to the external anchor support system, resulting in a 34.5% reduction in the overall deformation. Within the internal support system, the factors influencing the excavation deformation were ranked in the following order: water level (35.5%) > permeability coefficient (17.62%) > excavation layer (11.4%). High water levels, high permeability coefficients, and multi-layered soils were identified as the most unfavorable factors for excavation deformation. The maximum deformation under the coupled effect of these factors was established as the excavation support early warning threshold, and the optimal dewatering strategy involved lowering the water level at the excavation to 0.5 m below the excavation face. The on-site in situ monitoring data obtained through wireless sensors exhibited low discrepancies compared to the finite element simulation data, indicating the high precision of the finite element model for considering the fluid–structure interaction.

show abstract

“…Bell et al, simulated the granular materials of sand and grains by modelling the particles as discrete elements and had verified experimentally [9]. One of the significant advantages of this method is that dynamic phenomena, like splashes and avalanches, can be generated by particles' interaction with high physical accuracy [10]. This simulation technique is based on the molecular dynamics method which involve handling the constant forces efficiently.…”

Section: Introductionmentioning

confidence: 99%

Discrete Particle Method Numerical Simulation on The Distributions of Suspended Particles in The Flow of Ogee Spillway Structure

Zahari

Zawawi

Sidek

et al. 2022

ARFMTS

View full text Add to dashboard Cite

Dam failure is undeniably catastrophic and one of its major causes is the soil erosion near the dam structure. In this paper, the characteristics and compositions of soil sediment in dam spillway structure were investigated to determine its impact on the occurrence of erosion. Four suspended samples were taken from the vicinity of Ogee dam spillway. Sediment analysis using scanning electron microscope revealed that the soils consist of relative high metal contents of aluminium, iron and magnesium. These metals will attribute to the erosion of dam wall, which subsequently reduce the durability of wall against high hydrostatic pressure exerted by the reservoir. Nonetheless, as the average sizing of suspended particles at each sampling location were capped at 4.55 μm, the damages incurred to the dam were minimal. Additionally, the suspended particles around the dam spillway was numerically simulated with the inclusion of discrete phase model. The numerical data were in great consensus with the corresponding finding attained from the particle image velocimetry experimental of a scaled-down dam model, with the discrepancy not more than 4.89 %. The movement of suspended particles due to the water flow can be tracked numerically and it is found the sediment prone to accumulate at the vicinity of dam spillway.

show abstract

About Finite Element Analysis of Fluid – Structure Interaction Problems

Cited by 17 publications

References 12 publications

Structure improvement and parameter optimization of micro flow control valve

Structure improvement and parameter optimization of micro flow control valve

Research on the Deformation Law of Foundation Excavation and Support Based on Fluid–Solid Coupling Theory

Discrete Particle Method Numerical Simulation on The Distributions of Suspended Particles in The Flow of Ogee Spillway Structure

Contact Info

Product

Resources

About