化学工程2026，Vol.54Issue(6)：52-57,70,7.DOI:10.3969/j.issn.1005-9954.2026.06.009
旋转空化器功耗特性数值模拟
Numerical simulation of power consumption characteristics of rotating cavitator
摘要
Abstract
To investigate the coupling mechanism between internal flow fields and energy dissipation in rotary cavitation devices,CFD(computational fluid dynamics)was employed based on the standard k-s turbulence model to numerically simulate their power consumption characteristics,with model reliability validated through experimental measurements.A three-dimensional model was constructed using second-order discretization schemes to improve computational accuracy.The single-phase flow characteristics(including velocity gradients,shear rates,turbulent kinetic energy distribution,and dissipation rates)in the rotor-stator gap and blind hole regions were systematically analyzed.Dimensionless parameters(power number Po,Reynolds number Re,and flow number NQv)were used to establish a power consumption prediction model.The results show that high-shear zones are concentrated at the gap and blind hole edges,serving as the primary sources of energy dissipation.Second-order schemes demonstrate superior performance in fitting accuracy and convergence compared to first-order discretization.In the laminar regime,Po exhibits an inverse proportionality to Re,while in the turbulent regime,Po stabilizes at a constant value.A linear relationship between Po and NQv is established.This study reveals the coupling mechanism between internal flow and energy dissipation in rotary cavitation devices and provides a critical foundation for subsequent structural optimization and industrial applications.关键词
水力空化/数值模拟/功耗特性/流场分析Key words
hydraulic cavitation/numerical simulation/power consumption characteristics/flow field analysis分类
化学化工引用本文复制引用
李子康,张昆明,黄永春,唐湘毅,关皓天,曹艳,余慧群..旋转空化器功耗特性数值模拟[J].化学工程,2026,54(6):52-57,70,7.基金项目
国家自然科学基金资助项目(32560587,32260601) （32560587,32260601）
