Internal Flow Characteristics in a Prototype Spray Tower Based on CFD
2025
Xin Li | Hui-Fan Huang | Xiao-Wei Xu | Yu-Liang Zhang
To investigate the mechanisms by which inlet water velocity and rotational speed affect spray tower performance, computational fluid dynamics (CFD) was employed to analyze key performance indicators, including outlet flow velocity, flow rate, and the ratio of internal to external outlet flow rates. The results show that outlet flow rate is strongly positively correlated with rotational speed, while inlet water velocity demonstrates nonlinear effects on internal flow velocity. Significant parameter interaction exists&mdash:the correlation between inlet velocity and outlet velocity varies with rotational speed (R = &minus:0.9831 to 0.5229), and the outlet flow rate ratio shows a strong negative correlation with rotational speed (R = &minus:0.9918). The gray model demonstrated superior robustness with minimal error fluctuations, whereas the partial least squares regression model exhibited significantly increased errors under extreme conditions. This study provides a theoretical foundation and data support for spray tower parameter optimization.
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