Abstract

The plate with traveling wave motion can obtain energy from fluid under certain motion parameters. This energy absorption method, which imitates motion of fish, is called traveling wave energy absorption method. In order to improve the energy absorption efficiency, the traveling wave plate is arranged in the rectangular flow channel and is driven by the high pressure gas coming through the inlet. This internal flow mode is called traveling wave turbine. The traveling wave plate is simplified as a two-dimensional plate. The aerodynamic characteristics of traveling wave turbine are studied by numerical simulation. The results show that: Benefiting from the confinement effects of the rectangular flow channel, the incoming flow can maintain high pressure. Therefore, the time-averaged energy absorption efficiency of traveling wave turbine can reach 62.84%. The pressure of the fluid is high before the traveling wave plate, but it becomes low when the fluid flows through the plate. This means that the energy of the fluid is absorbed by the traveling wave plate. There are vortexes in the traveling wave turbine and the vortexes with opposite rotating directions will accelerate the fluid between them.

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