This paper presents developing an analytical model for flux switching motors. The motor is a class of variable reluctance motors that has two windings on stator; a field winding and an armature winding. Due to saliency of both stator and rotor poles, accurate modeling is difficult which arises from the nonlinear behavior of the machine. This paper presents a simple model which is able to predic...

A method of inducing a convective influx of core plasma in tokamaks utilizing a specially structured vertical asymmetric ripple is proposed. In the ripple well the radial gradient of the toroidal field is increased on the flux surfaces in the plasma boundary layer below midplane. Also, the magnitude of the ripple decreases exponentially from the boundary toward the magnetic axis and is practica...

The competition between drift wave and interchange physics in general E-cross-B drift turbulence is studied with computations in three dimensional tokamak flux tube geometry. For a given set of background scales, the parameter space can be covered by the plasma beta and drift wave collisionality. At large enough plasma beta the turbulence breaks out into ideal ballooning modes and saturates onl...

The shoreline temporarily recedes significantly as incoming storm waves reach the beach and cause wave breaking energy dissipation. However, since existing change model simulates based on longshore sediment transport rate (LSTR) empirical formulae, which are derived using correlation between flux littoral drift, it is difficult to simulate this phenomenon, drafted with transverse drift. Therefo...

Forced global ocean/sea-ice hindcast simulations are subject to persistent surface mass flux estimation biases, for example, configurations with an explicit-free may not take into account the seasonal storage of water on land when constraining sea level. We present a physically motivated closure, that results in: reduced watermass drift from initialization; improved Atlantic meridional overturn...

The linear collisionless damping of zonal flows is calculated for quasi-symmetric stellarator equilibria in flux-tube, flux-surface, and full-volume geometry. Equilibria are studied from the quasi-helical symmetry configuration Helically Symmetric eXperiment (HSX), a broken HSX, quasi-axial geometry National Compact Stellarator (NCSX). Zonal flow oscillations long-time affect evolution, residua...

Success of the puff-and-pump radiating divertor approach depends sensitively on both the divertor magnetic geometry and the ion B B drift direction. In the puff-and-pump scenario used in this study, argon impurities were injected into the private flux region, while plasma flows into both the inner and outer divertors were enhanced by a combination of particle pumping near both divertor targets ...