Magnetogravitational potential revealed near a liquid-vapor critical point

Abstract

International audienc

Vibrations of a diamagnetically levitated water droplet

“…The net force on a unit mass of water, Γ = −∇U , is zero at the levitation point. The equilibrium shape of a liquid with no surface tension follows the contours of U , as demonstrated recently, using liquid H 2 close to the critical point [7]. For water droplets with a ∼ 1 cm, however, the surface tension dominates the magnetic and gravitational forces on the drop, so that its equilibrium shape is nearly spherical.…”

Magnetic-Field Modulation of Gravity: Martian, Lunar, and Time-Varying Gravity

“…Let us assume that the capillarity length is less than the potential working cell dimension. Thus the magneto-gravitational potential L describes the meniscus of the two-phase fluid experienced, but this hypothesis is no longer valid for every case (Lorin et al 2009). The magneto-gravitational potential is expressed as:…”

Magnetically induced Rayleigh-Taylor instability under rotation: Comparison of experimental and theoretical results

“…Such magnetic body forces give rise to phenomena such as the "Moses effect" [12] and magnetically enhanced buoyancy [13][14][15] (magneto-Archimedes effect) in fluids and have also been exploited to levitate fluids in weightlessness (see, for example, Refs. [10,13,[16][17][18][19]). In our experiments on the RTI, the magnetic field was generated by a superconducting solenoid with a vertical axis.…”