Aerodynamic design and experimental investigations on the vane shaped pre-swirl nozzle
In order to reduce the flow loss of the pre-swirl air supply system and improve the heat transfer effect of the blades,reasonable pre-swirl nozzle structure design and simulation analysis methods are very important.Based on self-developed software,the pre-swirl nozzle was designed and three-dimensional simulation analysis and experimental research was conducted according to the design results.Due to the small size and low height of the pre-swirl nozzle,it is easy to exceed the tolerance during actual processing.Simulation methods were used to study the influence of changes in the height and stagger angle of blades on the flow characteristics.The experimental results show that the simulation results are in good agreement with the experimental results,confirming that the design of the pre-swirl nozzle meets the design requirements.
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