【摘 要】
：
In order to overcome the defects of air-agitated seed precipitation, such as scaring, liquid short-circuiting, the three-dimension flow fields with different st
【机 构】
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School of Energy and Power Engineering, Central South University, Changsha 410083, China;Henan Branc
论文部分内容阅读
In order to overcome the defects of air-agitated seed precipitation, such as scaring, liquid short-circuiting, the three-dimension flow fields with different structure are numerically simulated by computational fluid dynamics software. Euler/Euler approach was used to study the effects of structure on the flow field in the tank. Multi-fluid model, body-fitted coordinates and multi-block gird were adopted in the simulation. The simulating results are well consonant with the practical situations. The flow field is improved obviously when the flow velocity increases from 0.089 m/s to 0.192-0.300 m/s at the bottom of the optimized tank and therefore the scaring is reduced greatly in the industrial production. With a gathering sill, the problem of short-circuiting, which always appeares in the upper of the tank, can be solved very well.
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