Study of Turbulent Kinetic Energy and Dissipation Based on Fractal Impeller

Turbulent kinetic energy and turbulent dissipation are important aspects of the flow field characteristics, which can affect wear loss in mixing equipment. In order to increase equipment process, a series fractal impellers were designed based on iteration method, effects dimension number iterations characteristics investigated. Firstly, distribution its uniformity studied. Then, rate studied interpreted using vortex analysis, power device was further The results showed that: for field, an makes intensity decrease more uniform, compared non-iterative impeller, specifically rectangular secondary iterative impeller caused 30% reduction 50% uniformity; general reduces increases it slightly, this influence law is due change trailing by blade structure; also causes corresponding stirring power, from one decreases 20% while average speed only 5%. conclusion, special boundary reduce large extent, two iterations, effect. study be used as reference design dissipation.