科研之友
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摘要
For the dual channel ocean current power generation equipment which was developed by the author participation, two- dimensional numerical simulation is carried out with the Fluent 6.3 soft ware combined with MRF model. Different rotation angels of 5°- 90°cases are studied by analyzing velocity distribution and pressure distribution inside the dual channel current power generation equipment when the output power is 100 W for one-way flow. Also the effects of straight blade, forward bended blade and backward bended blade on performance parameters such as sea water flow through equipment channel and impeller rotation speed of the equipment at different rotation angles are studied for the dual channels equipment of different rotation angles. The numerical simulation results show that: during the period of performance parameter change, with the increases of the rotation angle, the flow fluid through the generation equipment and rotation speed firstly increase and then decrease. The maximum torque, the minimum rotation speed and the minimum flow fluid through generation equipment are for the forward bent blade under the same rotation angle and output power. By contrast, the minimum torque, the maximum rotation speed and the maximum flow fluid through generation equipment are for the bent blade under the same rotation angle and output power. And the torque, rotation speed and the flow through generation equipment for straight blade are between the forward bent blade and the backward bent blade.
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