An oil sloshing study: adaptive fixed-mesh ALE analysis and comparison with experiments

Castillo, Ernesto; Cruchaga, Marcela; Baiges, Joan; Flores, José

doi:10.1007/s00466-018-1633-2

Cited by 10 publications

(4 citation statements)

References 58 publications

(48 reference statements)

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“…The videos were recorded during the periodic time regime of the system. The error in measurements is bounded by ± 1 pix = ±0.2 mm, which is consistent with previous works (Cruchaga et al , 2013; Castillo et al , 2019; Núñez Aedo et al , 2020).…”

Section: Experimental Methodssupporting

confidence: 92%

“…In addition, the measurements obtained with the sensors are confirmed with data provided by the camera using as post process a motioncapturing technique for the interface. Information on the sensors and the verification procedures applied to their measurements can be found in previously reported work (Castillo, 2019;Núñez Aedo et al, 2020;Núñez et al, 2022;Battaglia, 2022). Considering these facts, the sensors were positioned 25 mm away from the tank walls, as shown in Figure 2(d).…”

Section: Problem Layoutmentioning

confidence: 99%

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A numerical and experimental study of a buoy interacting with waves

Núñez Aedo,

Cruchaga,

Storti

2023

HFF

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Purpose This paper aims to report the study of a fluid buoy system that includes wave effects, with particular emphasis on validating the numerical results with experimental data. Design/methodology/approach A fluid–solid coupled algorithm is proposed to describe the motion of a rigid buoy under the effects of waves. The Navier–Stokes equations are solved with the open-source finite volume package Code Saturne, in which a free-surface capture technique and equations of motion for the solid are implemented. An ad hoc experiment on a laboratory scale is built. A buoy is placed into a tank partially filled with water; the tank is mounted into a shake table and subjected to controlled motion that promotes waves. The experiment allows for recording the evolution of the free surface at the control points using the ultrasonic sensors and the movement of the buoy by tracking the markers by postprocessing the recorded videos. The numerical results are validated by comparison with the experimental data. Findings The implemented free-surface technique, developed within the framework of the finite-volume method, is validated. The best-obtained agreement is for small amplitudes compatible with the waves evolving under deep-water conditions. Second, the algorithm proposed to describe rigid-body motion, including wave analysis, is validated. The numerical body motion and wave pattern satisfactorily matched the experimental data. The complete 3D proposed model can realistically describe buoy motions under the effects of stationary waves. Originality/value The novel aspects of this study encompass the implementation of a fluid–structure interaction strategy to describe rigid-body motion, including wave effects in a finite-volume context, and the reported free-surface and buoy position measurements from experiments. To the best of the authors’ knowledge, the numerical strategy, the validation of the computed results and the experimental data are all original contributions of this work.

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Section: Experimental Methodssupporting

confidence: 92%

Section: Problem Layoutmentioning

confidence: 99%

A numerical and experimental study of a buoy interacting with waves

Núñez Aedo,

Cruchaga,

Storti

2023

HFF

Self Cite

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“…Different types of adaptive mesh schemes have been developed and investigated according to the free surface behaviour. The results are verified with experiments [11][12][13]. The mesh resolution plays a critical role in determining the accuracy of the simulation results, but finer meshes can significantly increase the computational cost.…”

Section: Introductionsupporting

confidence: 55%

The CFD Computation and Validation of Effects of Adaptive Mesh Refinement in Sloshing Simulation in A Narrow Tank

Sayak,

Uslu

2023

Proceedings of the 9th World Congress on Mechanical, Chemical, and Material Engineering

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Strong and precise computational methods are necessary to discover and understand undesirable effects in tanks where liquids slosh, known as sloshing. Sloshing is important for many industrial applications, such as fuel tanks in ships, aircraft, and other transport vehicles. Numerical methods are commonly used in modelling sloshing behaviour, and adaptive mesh refinement (AMR) technology is an effective method used to increase numerical accuracy in sloshing simulations. The primary objective of this research is to conduct Computational Fluid Dynamics (CFD) calculations of sloshing phenomena to establish a methodology for observing the undesirable effects on the relevant system and assess the effectiveness of adaptive mesh refinement by comparing the results of surface impact pressures with experimental case results from literature. A 3D model of a rectangular tank partially filled with water is used to simulate the impact pressure caused by roll motion. The roll motion is based on experimental data and occurs at periods close to the tank's internal wave resonance period. The pressure results are observed from a single monitoring point. Numerical studies are performed using Star CCM+ software. The Volume of Fluid (VOF) based Eulerian method is utilised to model the free surface flow. The study demonstrates the ability of AMR to accurately model sloshing behaviour and compares fixed and AMR grids at different levels. Finally, the results of fixed and adaptive cartesian grids are compared and verified with corresponding experimental data. The results showed that the AMR grid provided higher numerical accuracy, lower computational cost and allowed for more accurate modelling of sloshing behaviour. It is emphasised that the importance of AMR for understanding sloshing behaviour and modelling it accurately.

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“…e free surface will move under the gravity, and the profile of interface front changes with time evolution. In recent years, the numerical investigation of this problem has become a research hotspot and received a great deal of attention [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

The Finite Element Numerical Investigation of Free Surface Newtonian and Non-Newtonian Fluid Flows in the Rectangular Tanks

Gao

2020

Mathematical Problems in Engineering

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In this paper, we develop a new computational framework to investigate the sloshing free surface flow of Newtonian and non-Newtonian fluids in the rectangular tanks. We simulate the flow via a two-phase model and employ the fixed unstructured mesh in the computation to avoid the mesh distortion and reconstruction. As for the solution of Navier–Stokes equation, we utilize the SUPG finite element method based on the splitting scheme. The same order interpolation functions are then used for velocity and pressure. Moreover, the moving interface is captured via the concise level set method. We take advantage of the implicit discontinuous Galerkin method to handle the solution of level set and its reinitialization equations. A mass correction technique is also added to ensure the mass conservation property. The dam break-free surface flow is simulated firstly to demonstrate the validity of our mathematical model. In addition, the sloshing Newtonian fluid in the tank with flat and rough bottoms is considered to illustrate the feasibility and robustness of our computational scheme. Finally, the development of free surface for non-Newtonian fluid is also studied in the two tanks, and the influence of power-law index on the sloshing fluid flow is analyzed.

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An oil sloshing study: adaptive fixed-mesh ALE analysis and comparison with experiments

Cited by 10 publications

References 58 publications

A numerical and experimental study of a buoy interacting with waves

A numerical and experimental study of a buoy interacting with waves

The CFD Computation and Validation of Effects of Adaptive Mesh Refinement in Sloshing Simulation in A Narrow Tank

The Finite Element Numerical Investigation of Free Surface Newtonian and Non-Newtonian Fluid Flows in the Rectangular Tanks

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