Hydrodynamic Analysis of Partially Filled Liquid Tanks Subject to 3D Vehicular Manoeuvring

Han, Mengmeng; Dai, Jian; Wang, Chen; Ang, Kok Keng

doi:10.1155/2019/6943879

Cited by 7 publications

(4 citation statements)

References 29 publications

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“…It also demonstrates that slosh force increases in magnitude as the flexitank's excitation level increase. As stated by Mengmeng Han et al, in his finding, higher filling volume leads to a larger increase in the inertia effect [26]. Hence, the filling volume capacity of +15% is the best because it has the lowest slosh force, 27% (city-suburban), and 14% (freeway) better than the reference slosh force.…”

Section: Sloshing Induced By Driving Cycle Motionmentioning

confidence: 81%

Hydrodynamics Analysis on Liquid Bulk Transportation with Different Driving Cycle Conditions

Hamdan

Darlis

et al. 2022

ARFMTS

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Liquid bulk transport is one of the most important modes of fluid package transport, whether by sea or land. Flexitank has recently attracted the attention of shipment companies as an alternative method of fluid transportation due to the benefits of cost effectiveness, large shipping capacity, environmental friendliness, and quick loading/unloading time. However, the industry reports some cases regarding the leakage of the flexitank during transportation. While the hydrodynamic behaviour of the flexitank during transportation may influence the tank surface leakage issue. Thus, this study aims to determine the suitable filling volume capacity on flexitank by using Computational Fluid Dynamics (CFD). Hydrodynamics performance such as wall shear stress, volume fraction, dynamic pressure, and slosh force will be analyzed on different filling volume capacities and driving cycles. The filling volume capacity analyzed in this study are 5%, 10%, 15% more, or less than the reference capacity, 24000 L, based on different driving cycles: city-suburban and freeway. The results indicate that varying the fill level capacity of the tank affected the liquid sloshing behaviour and hydrodynamic performance of the tank. The highest wall shear stress (WSS) occurs at a filling volume capacity of -15 % because it is increasing the wall shear stress by 80% (city-suburban) and 35% (freeway) than the reference value. Following that, both speed profiles with a +10 % filling volume have the dynamic pressure, reducing it by 60% (city-suburban) and 47% (freeway) compared to the reference value. Thus, the filling volume of +10% is recommended to be suitable for the flexitank. Hence, this study benefits liquid bulk transportation by increasing fill level capacity and optimizing hydrodynamic performance.

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Section: Sloshing Induced By Driving Cycle Motionmentioning

confidence: 81%

Hydrodynamics Analysis on Liquid Bulk Transportation with Different Driving Cycle Conditions

Hamdan

Darlis

et al. 2022

ARFMTS

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“…This sloshing would last for a while even after the external excitation stopped. Indeed, liquid sloshing is often a bad thing that can increase the chance of a rollover and make the car harder to control [9][10][11]. Pandit and Biswal [12] studied the forced shaking of a two-dimensional, rigid, rectangular partially filled tank.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of a Partly Filled Rectangular Tank with Fuel Oil

Farhan Lafta Rashid,

Emad Qasem Hussein,

Mudhar A. Al-Obaidi

et al. 2023

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Sloshing refers to a certain kind of fluid movement that changes as it progresses. It possesses properties that are both nonlinear and exceedingly unpredictable, and these properties affect the tank wall. This effect may lead to structural wear, which in turn can cause the tank to fail. Benzene and gasoil liquids are used to test the effect of sloshing liquid and accompanying pressure on the wall tank caused by the baffles in partially full fluid tanks. To attain this, modeling of the interaction between fluid and structure is justified using the finite element analysis while the ANSYS Fluent is used to do the simulation. Specifically, the analysis enables us to anticipate the pressure that is being exerted on the shield, the influence of sloshing on the grounding point forces, and the size of the sloshing waves. The pressure distribution over time indicates a reduction of pressure on the tank wall as a result of utilising a vertical baffle if compared to the case of a tank wall without a baffle. The usage of vertical shields allows for around 20% of the greatest contact energy to be deflected, which is attributed to the potential of generating turbulence and vortices by the baffle.

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“…Wang et al [16] studied the nonlinear sloshing characteristics of the liquid contained in a tank with a vertical baffle mounted at the bottom of the tank. Han et al [17] concerned with nonlinear sloshing in a partially filled container due to the three-dimensional vehicle motion. The liquid sloshing is described by a set of linear modal equations derived from the potential flow theory, which can be applied to liquid sloshing induced by an arbitrary combination of lateral, longitudinal, and rotational excitations.…”

Section: Introductionmentioning

confidence: 99%

The Equal-Norm Multiple-Scale Trefftz Method for Solving the Nonlinear Sloshing Problem with Baffles

Shih¹,

Chen²,

Chang³

et al. 2021

Computer Modeling in Engineering &Amp; Sciences

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In this paper, the equal-norm multiple-scale Trefftz method combined with the implicit Lie-group scheme is applied to solve the two-dimensional nonlinear sloshing problem with baffles. When considering solving sloshing problems with baffles by using boundary integral methods, degenerate geometry and problems of numerical instability are inevitable. To avoid numerical instability, the multiple-scale characteristic lengths are introduced into T-complete basis functions to efficiently govern the high-order oscillation disturbance. Again, the numerical noise propagation at each time step is eliminated by the vector regularization method and the group-preserving scheme. A weighting factor of the group-preserving scheme is introduced into a linear system and then used in the initial and boundary value problems (IBVPs) at each time step. More importantly, the parameters of the algorithm, namely, the T-complete function, dissipation factor, and time step, can obtain a linear relationship. The boundary noise interference and energy conservation are successfully overcome, and the accuracy of the boundary value problem is also improved. Finally, benchmark cases are used to verify the correctness of the numerical algorithm. The numerical results show that this algorithm is efficient and stable for nonlinear two-dimensional sloshing problems with baffles.

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Hydrodynamic Analysis of Partially Filled Liquid Tanks Subject to 3D Vehicular Manoeuvring

Cited by 7 publications

References 29 publications

Hydrodynamics Analysis on Liquid Bulk Transportation with Different Driving Cycle Conditions

Hydrodynamics Analysis on Liquid Bulk Transportation with Different Driving Cycle Conditions

Numerical Simulation of a Partly Filled Rectangular Tank with Fuel Oil

The Equal-Norm Multiple-Scale Trefftz Method for Solving the Nonlinear Sloshing Problem with Baffles

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