Abstract
The possibilities of conversion of the energy of gravitational surface waves in liquid into a constant reactive flow due to special nonlinear mechanical floating devices (wave-jet converters) are investigated. The last ensure rectification of wave pressure and the effect of wave traction. Physical problems of radiation and scattering wave pressure rectification are considered separately using the examples of concrete devices. A ship model of special construction has been designed and tested. This model effectively converts ship's pitching immediately into a constant jet flow without using any external sources of energy. The ship's motion is characterized by an average Froude number Fr=0.14 and average forward velocity exceeding the velocities of liquid particles in the wave field. This ship presents a uniflow wave jet propulsive device.