Slosh dynamics

Slosh refers to the movement of liquid inside another object that is under motion. The liquid must have a free surface for it to be a slosh dynamics problem. The dynamics of the liquid can interact with the object that contains to alter its dynamics significantly.

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Practical Effects

It is an important effect for aircraft and spacecraft. ^[1] Slosh was a factor in the recent Falcon 1 2nd test flight problem.

The effect of slosh is used to limit the bounce of a roller hockey ball. Water slosh can significantly reduce the rebound height of a ball but some amounts of liquid seem to lead to a resonance effect. ^[2] Many of the balls for roller hockey commonly avaialble contain water to reduce the bounce height.

References

1. ^ Maneuvering control problems for a spacecraft with unactuated fuel slosh dynamics Reyhanoglu, M.Control Applications, 2003. CCA 2003. Proceedings of 2003 IEEE Conference on Volume 1, Issue , 23-25 June 2003 Page(s): 695 - 699 vol.
2. ^ Maneuvering control problems for a spacecraft with unactuated fuel slosh dynamics Reyhanoglu, M.Control Applications, 2003. CCA 2003. Proceedings of 2003 IEEE Conference on Volume 1, Issue , 23-25 June 2003 Page(s): 695 - 699 vol.

• Maneuvering control problems for a spacecraft with unactuated fuel slosh dynamics Reyhanoglu, M.Control Applications, 2003. CCA 2003. Proceedings of 2003 IEEE Conference on Volume 1, Issue , 23-25 June 2003 Page(s): 695 - 699 vol.
• Sport ball for roller hockey; U.S. Patent 5516098 May 14, 1996; Jeffrey Aiello