Head-on collision of two solitary waves in the presence linear shear currents is studied by use High-Level Green–Naghdi (HLGN) theory. The finite difference method used to solve HLGN model time-domain simulation. initial values are obtained steady solution currents. Shear with different velocities considered assess their effect on solitary-wave collision. Three aspects head-on process current s...

General nonlinear equations describing reversed shear Alfven eigenmode (RSAE) self-modulation via zero frequency zonal structure (ZFZS) generation are derived using gyrokinetic theory, which then applied to study the spontaneous ZFZS excitation as well RSAE saturation. It is found that both electrostatic flow (ZF) and electromagnetic current (ZC) can be preferentially excited by finite amplitud...