Optimal design of flow channel structure based on DOE
In this article,in order to explore the main factors of pressure loss when oil flows through multi-directional valve flow channels,a three-dimensional numerical solution model is set up based on Fluent;in combination with the Design of Experi-ments(DOE)method,three structural parameters,namely sectional aspect ratio,channel bending radius,and fillet,are used as the design variables,and pressure loss is taken as the objective function.The response surface method is used to analyze pressure loss.The channel structure is optimized by means of the genetic algorithm.The results show that when the sectional aspect ratio is 0.97,the channel bending radius is 302 mm,and the fillet radius is 3 mm,pressure loss is minimized,which has reduced by 24.17％,compared with that before optimization,thus enhancing the rate of energy utilization rate.This method,compared with the traditional optimization design of multi-directional valve flow channels,saves a lot of time and cost,and provides reference ba-sis for more complex optimization design.
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