华中科技大学学报（自然科学版）2025，Vol.53Issue(4)：52-58,7.DOI:10.13245/j.hust.250213
湍流强度对短弦长螺旋桨性能影响的数值研究
Numerical study on turbulent intensity effect on short-chord-length propeller hydrodynamic performance
摘要
Abstract
To investigate the influence of environmental turbulence intensity(WTI)on the hydrodynamic performance of short-chord-length propeller in model scale,a numerical study was carried out on the basis of numerical model validation using the RANS(Reynolds-averaged Navier-Stokes)method with the γ-Reθ model,and the calculated results were analyzed from the aspects of the flow state and flow phenomena in the blades boundary layer.Results under design advance ratio show that the propeller thrust and torque increase with the turbulence intensity when WTI<0.03,the thrust reaches peaks when WTI=0.03,and the thrust almost no longer changes,while the torque is still increasing when the WTI>0.03;the flow is complex in boundary layer of model scale propellers,where the blades are covered by the laminar flow dominantly with strong flow separation and cross-flow respectively at the inner and outer radius near the trailing edges on blade suction side when WTI=0.01;with WTI increasing,the laminar area on the blade surface shrinks and the turbulence area expands,and the flow separation and cross-flow phenomena are weakened accordingly;the blades are completely covered by the turbulence without flow separation and cross-flow when WTI=0.1.关键词
短弦长螺旋桨/湍流强度/γ-Reθ模型/计算流体力学/流动状态Key words
short-chord-length propeller/turbulent intensity/γ-Reθ model/computational fluid dynamics/flow state分类
交通运输引用本文复制引用
贺伟,李靖宇,刘谦,李子如..湍流强度对短弦长螺旋桨性能影响的数值研究[J].华中科技大学学报（自然科学版）,2025,53(4):52-58,7.基金项目
国家自然科学基金重点国际合作研究项目(51720105011). （51720105011）
