Abstract
Regarding open turbine type agitator, CFD method was used to simulate the mixing flow field with different number of blades, different blade angles and different ratio of blade lengths and diameters. In addition, according to the mixing effect, the parameters of agitator structure are optimized. Numerical simulations are verified by PIV experiments. The Multiple reference frame model conforms to the reality. Agitator structure is optimized when the ratio of blade length and diameter is 0.74, the blade angle is 45 °,blade number is 6, leading to the best the mixing effect with least stirring dead areas.
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