The performance of a two stage control design scheme on the control of liquid outpouring and the suppression of liquid sloshing during the outpouring phase of the pouring process is studied for the case of liquid containers carried by manipulators. The designed scheme, that does not require measurements of the liquid’s motion within the tank, combines a partial inverse dynamics controller with ...

We consider the sloshing problem for an incompressible, inviscid, irrotational fluid in an open container, including effects due to surface tension on the free surface. We restrict ourselves to a constant contact angle and seek time-harmonic solutions of the linearized problem, which describes the time-evolution of the fluid due to a small initial disturbance of the surface at rest. As opposed ...

We present a detailed analysis of reflecting intensity perturbation in large coronal loop that appeared as sloshing oscillation and lasted for at least one half periods. The is initiated by microflare footpoint the loop, propagates along eventually reflected remote where significant brightenings are observed all AIA extreme-ultraviolet (EUV) channels. This unique observation provides us with op...

Loads due to wave impacts are a limiting factor in the design of liquefied natural gas (LNG) tankers and their insulation. The current methodology considers load independent from response tank. Better tanks can be designed by knowing effect interaction between loads response, however predicting these effects is computationally expensive. In this paper new application non-hydrostatic shallow wat...

In the quest to develop viable designs for third-generation optical interferometric gravitational-wave detectors ~e.g., LIGO-III and EURO!, one strategy is to monitor the relative momentum or speed of the test-mass mirrors, rather than monitoring their relative position. A previous paper analyzed a straightforward but impractical design for a speed-meter interferometer that accomplishes this. T...

We propose a control design scheme that aims to prevent undesirable liquid outpouring and suppress sloshing during the forward and backward tilting phases of the pouring process, for the case of liquid containers carried by manipulators. The proposed scheme combines a partial inverse dynamics controller with a PID controller, tuned with the use of a “metaheuristic” search algorithm. The “metahe...

In this review, we primarily address the present state of arts and latest progresses in a few frontier issues mostly relevant to free surface/interface ocean engineering. They include TC (tropical cyclone) induced extreme surface wave, sloshing LNG (liquefied natural gas), cavitation/bubble dynamics VIM (vortex-induced motion) VIV vibration). addition general description, mainly focus on recent...

The geometry of the impact surface is as effective wave shape in change sloshing forces. depends on tank, oscillation frequency coinciding with natural frequencies tank under motion. This study compares deformations and pressures lateral walls that occur during along one axis at same between a rectangular chamfered similar dimensions. pressure distribution surfaces due to was measured for both ...