The effects of LNG-tank sloshing on the global motions of LNG carriers

Lee, S.J.; Kim, M.H.; Lee, D.H.; Kim, J.W.; Kim, Yeo Hyung

doi:10.1016/j.oceaneng.2006.02.007

Cited by 96 publications

(32 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…21 Early works focused on sloshing of spacecraft propellent in cylindrical, 22,23 conical 24 or rectangular tanks, 25 while more recent investigations involved the transport of liquids in naval carriers. 26,27 Moreover, swirling and unsteady flow regimes have been observed in linear forced sloshing at shaking frequencies close to the first natural frequency. Extensive study determined the stability regions of those flows, 26,30,31 while the persistence of swirling regime due to orbital shaking has also been investigated.…”

Section: Introductionmentioning

confidence: 99%

Surface wave dynamics in orbital shaken cylindrical containers

et al. 2014

View full text Add to dashboard Cite

Be it to aerate a glass of wine before tasting, to accelerate a chemical reaction, or to cultivate cells in suspension, the "swirling" (or orbital shaking) of a container ensures good mixing and gas exchange in an efficient and simple way. Despite being used in a large range of applications this intuitive motion is far from being understood and presents a richness of patterns and behaviors which has not yet been reported. The present research charts the evolution of the waves with the operating parameters identifying a large variety of patterns, ranging from single and multiple crested waves to breaking waves. Free surface and velocity fields measurements are compared to a potential sloshing model, highlighting the existence of various flow regimes. Our research assesses the importance of the modal response of the shaken liquids, laying the foundations for a rigorous mixing optimization of the orbital agitation in its applications. C 2014 AIP Publishing LLC. [http://dx

show abstract

Section: Introductionmentioning

confidence: 99%

Surface wave dynamics in orbital shaken cylindrical containers

et al. 2014

View full text Add to dashboard Cite

show abstract

“…In addition, the excitation force in the time domain is as follows (Journée [4], Lee [5], Clauss [6], and Kosleck [7]):…”

Section: Time Domain Approachmentioning

confidence: 99%

“…and The next approach is the numerical analysis approach, which includes the calculation of the displacement in the final time domain (Lee [5] and Gilat and Subramaniam [8]). …”

Section: Numerical Approachmentioning

confidence: 99%

Prediction for Irregular Ocean Wave and Floating Body Motion by Regularization: Part 2. Motion Prediction

Yang¹,

Kwon²

2017

T FAMENA

View full text Add to dashboard Cite

SummaryIn the analysis of the motion of a floating body, the domains can broadly be divided into the frequency domain and the time domain. The essence of the frequency domain analysis lies in calculating the hydrodynamic coefficient from the equation of motion, which has six degrees of freedom, by applying several methods. In this research, Bureau Veritas's "HydroStar" software was used, and the comparison and the verification were carried out by experiments. For the time domain analysis, we used an existing method proposed by Cummins and made motion predictions by using deterministic random phases calculated in the time domain calculations of the excitation force. Lastly, the potential of wave and motion predictions was verified through the data obtained from a motion analysis experiment using a tension leg platform in the context of irregular waves.

show abstract

“…This type of timedomain approach is more desirable for accurate evaluation of coupling effects at severe sea states. These efforts can be found, for example, in Kim et al (2003, Kim et al (2005), Cho et al (2007) and Lee et al (2007Lee et al ( , 2008.…”

Section: Introductionmentioning

confidence: 99%

Coupled Seakeeping With Liquid Sloshing in Ship Tanks

Kim

Shin

2008

Volume 6: Nick Newman Symposium on Marine Hydrodynamics; Yoshida and Maeda Special Symposium on Ocean Space Utilization; Specia

View full text Add to dashboard Cite

A three-dimensional forward-speed seakeeping theory is proposed by the inclusion of a tank sloshing flow model. The methodology is based on a coupling model of sloshing and seakeeping in the frequency domain. The fluid forces and moments due to the liquid motion inside tanks are incorporated into the equations of the vessel motion for the coupled seakeeping computations. The classical expression for restoring forces is accordingly modified for the coupled analysis. The global motion responses of a modern LNG carrier at forward speed in beam seas are then calculated to investigate the coupling effects between sloshing and seakeeping. No prominent coupling effect was observed in heave and pitch motions while a significant effect was observed in sway and roll motions. The numerical results show that the proposed theoretical model works well in comparison with experimental results.

show abstract

The effects of LNG-tank sloshing on the global motions of LNG carriers

Cited by 96 publications

References 3 publications

Surface wave dynamics in orbital shaken cylindrical containers

Surface wave dynamics in orbital shaken cylindrical containers

Prediction for Irregular Ocean Wave and Floating Body Motion by Regularization: Part 2. Motion Prediction

Coupled Seakeeping With Liquid Sloshing in Ship Tanks

Contact Info

Product

Resources

About