The parameter that should be prioritized in a tidal turbine blade design to minimize cavitation is maintaining a sufficient margin above the vapor pressure of the water across the entire blade surface, which translates to minimizing the pressure drop and ensuring adequate Net Positive Suction Head (NPSH). Cavitation is the formation of vapor bubbles in a liquid due to a reduction in pressure. When these bubbles collapse, they create intense pressure waves that can damage the turbine blades, reducing their efficiency and lifespan. To avoid cavitation, the pressure on the blade surface must rem....
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