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Fuente: WIPO Wine
A system includes a surface (308), an actuator (304), and a controller (320). The surface (308) has a fluid flowing over the surface. The actuator (304) is coupled to the surface (308) to move the surface relative to the fluid. The controller (320) causes the actuator (304) to cause the surface to generate a surface wave that modifies drag in the fluid. The actuator (304) can cause the surface to generate a Love wave.