Liquid Sloshing Dynamics

Ibrahim, Raouf A.

doi:10.1017/cbo9780511536656

Cited by 658 publications

(292 citation statements)

References 1,367 publications

Supporting

Mentioning

235

Contrasting

Unclassified

Order By: Relevance

“…The sloshing phenomenon affects the performance of the control system and so it is desirable to avoid a vibration at a liquid free surface eigenvalue in the container. The usual sloshing problem is sometimes handled with the potential flow theory of the small amplitude (see, for instance, Ibrahim 1) ). The velocity potential must satisfy the 3D Laplace equation with the boundary conditions of zero normal derivative on a wetted wall and the linearlized free surface condition.…”

Section: Introductionmentioning

confidence: 99%

Self-Induced Rotary Sloshing Caused by an Upward Off-Centered Jet in a Cylindrical Container

et al. 2008

View full text Add to dashboard Cite

Self-induced rotary sloshing caused by an upward off-centered jet in a cylindrical container is numerically and experimentally investigated. Unlike the regular jet-induced rotary sloshing, the present off-centered case could contain components of higher fluctuation in the surface wave and the amplitude exhibits different values in various view angles. A simple geometrical model for the amplitude is established, by assuming the conservation of the angular momentum of the sloshing wave, and the predicted amplitude is tested against the experimental and computational results. Some results for the flow pattern, sloshing period, possible occurrence regime and trajectory of the peak point of the free surface swell due to the inlet jet are given.

show abstract

Section: Introductionmentioning

confidence: 99%

Self-Induced Rotary Sloshing Caused by an Upward Off-Centered Jet in a Cylindrical Container

et al. 2008

View full text Add to dashboard Cite

show abstract

“…The works by Moiseyev and Rumyantsev (1968), Ibrahim (2005) and Faltinsen and Timokha (2009), and the references herein, highlight the problems in these areas. The problem of coupled dynamics adds an additional layer of complexity to this problem because it allows for the potential enhancement or destabilization of fluid dynamics due to the motion of the vessel.…”

Section: Introductionmentioning

confidence: 87%

Instability of sloshing motion in a vessel undergoing pivoted oscillations

Turner

Ardakani

Bridges

2015

Journal of Fluids and Structures

View full text Add to dashboard Cite

-AbstractSuspending a rectangular vessel partially filled with an inviscid fluid from a single rigid pivoting rod produces an interesting physical model for investigating the dynamic coupling between the fluid and vessel motion. The fluid motion is governed by the Euler equations relative to the moving frame of the vessel, and the vessel motion is given by a modified forced pendulum equation. The fully nonlinear, two-dimensional, equations of motion are derived and linearized for small-amplitude vessel and free-surface motions, and the natural frequencies of the system analysed. It is found that the linear problem exhibits an unstable solution if the rod length is shorter than a critical length which depends on the length of the vessel, the fluid height and the ratio of the fluid and vessel masses. In addition, we identify the existence of 1 : 1 resonances in the system where the symmetric sloshing modes oscillate with the same frequency as the coupled fluid/vessel motion. The implications of instability and resonance on the nonlinear problem are also briefly discussed.-October 23, 2014-

show abstract

“…While effective devices have long been investigated to prevent excessive surface deformations, the most famous ones being antislosh baffles (see Ref. [2] for a review), sloshing control could be improved by understanding the precise dissipative processes resulting from back-and-forth displacements of a container. Moreover, the limit of linear theory is unknown: If we were asked if a linear damping correctly describes the oscillations taking place in a cup of coffee, many of us would hesitate before giving an opinion.…”

mentioning

confidence: 99%

“…[2,4]). Natural frequency computed in this framework differs from the experimental values from less than 1% [5,6] up to around 10% [7][8][9].…”

mentioning

confidence: 99%

See 1 more Smart Citation

Observation of nonlinear sloshing induced by wetting dynamics

2017

View full text Add to dashboard Cite

Back-and-forth oscillations of a container filled with fluid often result in spilling as the gravest mode gets excited, a well-known phenomenon experienced in everyday life and of particular importance in industry. Our understanding of sloshing is largely restricted to linear response, and existing extensions mostly focus on nonlinear coupling between modes. Linear theory is expected to correctly model the dynamics of the system as long as the amplitude of the mode remains small compared to another length scale, so far unknown. Using a fluid in the vicinity of its critical point, we demonstrate that in perfect wetting this length scale is neither the wavelength nor the capillary length but a much shorter one, the thickness of the boundary layer. Above this crossover length scale, the resonance frequency remains roughly constant while dissipation significantly increases. We also show that dynamical wetting is involved in both linear and nonlinear dissipative processes.

show abstract

Liquid Sloshing Dynamics

Cited by 658 publications

References 1,367 publications

Self-Induced Rotary Sloshing Caused by an Upward Off-Centered Jet in a Cylindrical Container

Self-Induced Rotary Sloshing Caused by an Upward Off-Centered Jet in a Cylindrical Container

Instability of sloshing motion in a vessel undergoing pivoted oscillations

Observation of nonlinear sloshing induced by wetting dynamics

Contact Info

Product

Resources

About