Summary: Reinforcement learning has proven successful at harnessing the passive dynamics of underactuated systems to achieve least energy solutions. However, coupled fluid-structural models are too computationally intensive for in-the-loop control in viscous flow regimes. My vertically falling soap

Simulating the delightful dynamics of soap films, bubbles, and foams has traditionally required the use of a fully three-dimensional many-phase Navier-Stokes solver, even though their visual appearance is completely dominated by the thin liquid surface. We depart from ear-lier work on soap

Soap bubbles are a common interfacial fluid dynamics phenomenon having appli-cations such as buoyant hollow spherical fillers and flow visualization of large scale airflows. In contrast to the dynamics of liquid drops in gas and gas bubbles in liquid, the dynamics of soap bubbles has not been well

of a coating in the presence of an initially uniform distribution of surfactant, (ii) drainage of a vertical soap film, and (iii) flow behavior caused by a concentrated “bolus ” of surfactant. This last example illustrates the mechanism responsible for “crater ” formation in drying paint layers. 1

by Theodorsen (3-5). While this important advance made it possible to predict the onset of flutter for rigid plates, these analyses are not directly applicable to the case of a spatially extended elastic system such as a flapping flag. Recently, experiments on an elastic filament flapping in a flowing soap film

Abstract—Gas chromatographic detector types and application, as well carrier gas flow rate and column hold-up measurements are discussed in this paper. The flame ionization and hot wire detectors are discussed in detail. The measurement of carrier gas flow rate using a soap film bubble flow meter

), in which the inner cylinder is rotating with speed v0, and the outer cylinder is at rest. Both cylinders are perpendicular to the plane of the film. When a soap film is used in the experiment, the laminar flow between the cylinders is stable up to very large v0, and the film gets thicker towards the outer

Abstract: This paper reports the liquid energy harvesting with carbon nanotube film (CNF) devices. Different from the voltage generation by flowing water or other liquids across the carbon nanotube or graphene thin film, it was found that the electricity can also be generated by immersing

of such an interaction problem, which is also of interest in various other engineering The fluttering flag instability has been the focus of a large number of experimental studies including soap-film To understand the onset of the instability, several papers have focused on the linear stability of the flat position

Hysteresis has been observed in a study of the transition between laminar flow and vortex shedding in a quasi-two dimensional system. The system is a vertical, rapidly flowing soap film which is penetrated by a rod oriented perpendicular to the film plane. Our experiments show that the transition