Study on sloshing simulation in the independent tank for an ice-breaking LNG carrier

Ding, Shifeng; Wang, Gang; Luo, Qing

doi:10.1016/j.ijnaoe.2020.03.002

Cited by 12 publications

(3 citation statements)

References 26 publications

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“…Establishing an optimal learning environment is a crucial element in garnering undivided attention from kids. A suitable classroom climate can prevent students from experiencing boredom, lack of focus on the teacher, drowsiness, and engaging in conversations with their peers (Ding, 2020;Gu, 2022;Li, 2023;Peng, 2019). Consequently, educators may require assistance in comprehending the subject matter in order to effectively convey it to students, despite the fact that the content has already been presented.…”

Section: Introductionmentioning

confidence: 99%

Clap-Breathe-Count: Using Ice-Breaking Ma-Te-Ma-Ti-Ka to Increase High School Students' Learning Motivation

Gunawan,

Darmayanti,

In'am

et al. 2023

DPJPM

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Creating a conducive learning atmosphere is an important factor in getting full attention from students. Suppose the atmosphere in the classroom could be more conducive. In that case, it will cause students to feel bored, tired, not focused on the teacher, sleepy, and even talk to their classmates, especially when students appear to show anxiety about learning. Ice Breaking is an exciting learning media that prioritizes innovative, creative, and futuristic elements. This research aims to determine the use of the icebreaker method to increase student motivation in class XI high school mathematics subjects. The research design used was pre-experimental, namely a one-group design with pre-test and post-test (single-group pre-test and post-test design). The subjects of this research were 36 students using random quota data collection techniques. The data analysis used in this research is the product-time correlation test. The statistical technique used is Pearson product-moment correlation. The data collection tool used was the icebreaker questionnaire. The research results show that icebreaking learning significantly affects students' mathematics motivation.

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Section: Introductionmentioning

confidence: 99%

Clap-Breathe-Count: Using Ice-Breaking Ma-Te-Ma-Ti-Ka to Increase High School Students' Learning Motivation

Gunawan,

Darmayanti,

In'am

et al. 2023

DPJPM

View full text Add to dashboard Cite

show abstract

“…They applied some modifications to the porous material and discussed the effect on wave mitigation using their simulations. Ding et al 22 investigated the liquid sloshing effect on LNG tanks under ice-breaking loads. Lee et al 23 investigated the sloshing effect on type-C tanks with internal structural members.…”

Section: Introductionmentioning

confidence: 99%

Wave impact on a rigid and flexible wall using various viscous fluids during sloshing

Korkmaz

2022

Proceedings of the Institution of Mechanical Engineers, Part M:

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This paper addresses a study of wave impacts on the chamfered shape of a structure during sloshing, using two different fluids through experimental analysis. Horizontal oscillations are carried out on the tank under various excitation frequencies at a fixed amplitude. Rigid and relatively flexible walls are considered for measuring pressure impact and structural deformation from the wave impacts. Various wave impulses are directed at the sidewall, and the structural deformations are discussed in detail. Wave impacts for various fluids are carried out, from which the pressure-time history, strain values, and free-surface deformation measurements are highlighted. Through the analysis, the breaking wave gets distorted by bottom chamfer at around the vertical portion of the wall. Therefore, physical results are changed likely to having with the wave strike the wall. The impact from more viscous fluids have also been found to reduce both the dynamic pressure and structural strain at practically the same rates in comparison with less viscous fluids.

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“…Recently, studies on sloshing have increased for the application of LNG fuel tanks [2][3][4]. The most popular methods of sloshing studies are model tests and numerical simulations.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on the Tank Heel Determination Using Smoothed Particle Hydrodynamics

Park

Luong

Choung

2021

JMSE

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Tank heel minimization is a significant issue in the design of LNG fuel tanks because it is associated with stable suction pump operation and thermal shock requirements during LNG bunkering. This study examined how the LNG tank heel is minimized, maintaining a suction pump fully submerged in LNG during dynamic vessel motion. The study assumed two LNG fuel tanks mounted on the forward deck of a 50,000 deadweight class oil product carrier. Information on the dimensions and shape of the LNG fuel tank was determined from Wartsila’s brochure, and the specifications of Vanzetti’s suction pump were referred to. The LNG fuel tank and LNG heel were modeled as rigid elements and hydrodynamically smoothed-particles, respectively. The number of particles could be determined by performing even keel analyzes by adding or subtracting particles until the target head was satisfied under the gravity load. To simulate the motion of the LNG fuel tank, the pitch and roll periods and amplitudes of the ship were calculated using the DNV classification rules. Visual observations of the dynamic flow during the pitch and roll motions with respect to the ship’s center of mass showed that the roll motion was more critical from the viewpoint of the LNG heel than the pitch motion. After performing the simulations for three cycles of roll and pitch motions, the suction pump submergence was reviewed in the last cycle. Under the conditions assumed in this study, a filling ratio of 15% was determined as the minimum LNG tank heel. Although the LNG heel has customarily been determined, the LNG heel needs to be determined through hydrodynamic analyses of each vessel because it depends on the shape of the fuel tank and the vessel motion characteristics.

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Study on sloshing simulation in the independent tank for an ice-breaking LNG carrier

Cited by 12 publications

References 26 publications

Clap-Breathe-Count: Using Ice-Breaking Ma-Te-Ma-Ti-Ka to Increase High School Students' Learning Motivation

Clap-Breathe-Count: Using Ice-Breaking Ma-Te-Ma-Ti-Ka to Increase High School Students' Learning Motivation

Wave impact on a rigid and flexible wall using various viscous fluids during sloshing

Numerical Study on the Tank Heel Determination Using Smoothed Particle Hydrodynamics

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