Abstract In coronal loop modeling, it is commonly assumed that the loops are semicircular with a uniform cross-sectional area. However, observed rarely semicircular, and extrapolations of magnetic field show strength decreases height, implying area expands height. We examine these two assumptions directly, to understand how they affect hydrodynamic radiative response short, hot strong, impulsiv...

The wave glider is an ocean-wave-propelled autonomous marine vehicle with unique dual-body architecture, which can converse the energy obtained from ocean into forward thrust. In this paper, dynamic models of submerged based on characteristics tandem hydrofoils and surface float were separately established. pitching angles angle attack between relative current considered for hydrodynamic coeffi...

The nonlinear and multi-factor-dependent characteristics of the hydrodynamic forces acting on the aft body of a supercavitating vehicle are investigated using computational fluid dynamics (CFD). The CFD model of natural supercavitating flow is first verified and validated upon the supercavitating flow around a cavitator in the shape of a circular disk. Then the model is used to simulate the sup...