Numerical Computation of Sloshing-Induced Force in Complex Ship Tanks under the Excitation of Ship Rolling Motion Based on the MPS Method

Sun, Xiaofeng; Zhong, Yiping; Bian, Feng; Yin, Yixin

doi:10.3390/app12105130

Cited by 3 publications

(2 citation statements)

References 58 publications

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“…Volume of Fluid (VOF) [32] and Level-set [33] are popular mathematical models for detecting free surface in Euler mesh methods. In recent years, meshless particle methods have become increasingly popular for simulating violent free-surface flows, thanks to their inherent advantage in recognizing free surfaces [34][35][36]. The famous meshless particle methods include Smoothed Particle Hydrodynamics (SPH) [37,38] and the Moving Particle Semi-implicit (MPS) method [39].…”

Section: Of 16mentioning

confidence: 99%

Study on the Damping Effect and Mechanism of Vertical Slotted Screens Based on the BM-MPS Method

Zhang

Wang

2023

JMSE

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Liquid sloshing is a common phenomenon in ocean engineering, and one which not only affects the stability of ship navigation, but also poses a threat to both the marine environment and human life. Ascertaining how best to reduce the amplitude of liquid sloshing has always been a key problem in ocean engineering. In this study, based on an improved moving-particle semi-implicit method, the BM-MPS method, the damping effect of a vertical slotted screen under rotation excitation was simulated and studied, and the influence of baffle porosity and the rotation amplitude on the resonance period and impact pressure was discussed. The results showed that the porosity had an obvious effect on the resonance period. A significant resonance period transformation happened when the porosity was 0.1, but a porosity of 0.15 was the point at which the maximum impact pressure in the resonance was at its minimum. Meanwhile, the impact duration curve was related to porosity. With the increasing of porosity, the impact duration curve changed from having no peak to a single peak, and then to double peak. In addition, the amplitude of rotation excitation was also one of the factors that affected the resonance period.

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Section: Of 16mentioning

confidence: 99%

Study on the Damping Effect and Mechanism of Vertical Slotted Screens Based on the BM-MPS Method

Zhang

Wang

2023

JMSE

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“…Armenio et al [6,7] and Li et al [8] independently developed coupled numerical models based on computational fluid dynamics (CFD) for the coupled effects. After Li et al [8], many studies have been conducted on this topic in recent years (e.g., Huang et al [9], Taskar et al [10], Jiang et al [11], Cercos-Pita et al [12], Ghamari et al [13], Saripilli and Sen [14], Bulian and Cercos-Pita [15], Diebold et al [16], Alujević et al [17], Lyu et al [18], Zhuang and Wan [19], Alujević et al [20], Subramanian et al [21], Wei et al [22], Bernal-Colio et al [23], Liu et al [24], Yao et al [25], He et al [26], Lin et al [27], Liu et al [28], Lyu et al [29], Sun et al [30], Wen et al [31], Yu et al [32], Chen et al [33], Chen et al [34], Ge et al [35], Kapsenberg and Carette [36], Lee et al [37], Lin et al [38], and Wang et al [39]). However, the dynamics of the ships and floating caissons are different.…”

Section: Introductionmentioning

confidence: 99%

Development of Coupled Numerical Model between Floating Caisson and Anti-Oscillation Tanks

Shirai,

Nakamura,

Cho

et al. 2023

JMSE

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Floating caissons can oscillate owing to ocean waves when towed to an installation site. To reduce these oscillations, free-surface anti-oscillation tanks mounted on floating caissons have been proposed. However, no coupled numerical model exists between the motion of the floating caisson and fluid flow in the tanks based on computational fluid dynamics (CFD). In this study, a coupled model is developed and compared to existing physical experiments for validation. In the coupled model, the vertical and rotational motion of the floating caisson are computed as a rigid body, and the motion of the free water in the tank is computed using a CFD model. Numerical results show the predictive capability of the coupled model in terms of the rotational motion (pitch) of the floating caisson within ±20% of experimental data, regardless of the absence or presence of water in the tank. The numerical results also show that the fluid flow with complex air–water interface motion in the tank can be analyzed in detail using the coupled model. This suggests that the coupled model developed in this study is a useful tool for quantitatively assessing the effectiveness of an anti-oscillation tank for reducing the pitch of a floating caisson.

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Numerical Simulations on the Flooding into a Damaged Cabin with a Flexible Bulkhead Based on the Mixed-Mode Function-Modified MPS Method

Zhang

Jiang

et al. 2022

JMSE

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Floodwater entering the damaged cabin and impacting the bulkhead can cause damage to the watertight compartment and affect the survival of the ship. The elastic deformation of the bulkhead can slow down the impact and affect the flow field, which affects the hydrodynamic distribution inside the cabin. In this work, numerical simulations on the flooding phenomena into the damaged cabin with various stiffness, watertight bulkheads are carried out by using the mixed-mode function-modified moving particle semi-implicit (MPS) method, with the objective of investigating the influence of the stiffness of the watertight bulkheads on the structural impact load. Firstly, the numerical model based on the MPS method is set up to predict the dam-break wave impact load on an elastic plate and compared with the experimental measurements to verify the feasibility of the method. Then, the evolution of the flooding process of the damaged cabin with four different stiffnesses are simulated and the impact pressure on the bulkhead is predicted and compared. It is found that the flexible watertight bulkheads not only can reduce the peak pressure acting on it, but also have an effect on the hydrodynamic pressure distribution of the entire cabin. This implies that properly selected stiffness and material properties of watertight bulkheads can mitigate the impact of flooding on the damaged cabin’s bulkheads.

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Numerical Computation of Sloshing-Induced Force in Complex Ship Tanks under the Excitation of Ship Rolling Motion Based on the MPS Method

Cited by 3 publications

References 58 publications

Study on the Damping Effect and Mechanism of Vertical Slotted Screens Based on the BM-MPS Method

Study on the Damping Effect and Mechanism of Vertical Slotted Screens Based on the BM-MPS Method

Development of Coupled Numerical Model between Floating Caisson and Anti-Oscillation Tanks

Numerical Simulations on the Flooding into a Damaged Cabin with a Flexible Bulkhead Based on the Mixed-Mode Function-Modified MPS Method

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