中国舰船研究2023，Vol.18Issue(6)：21-29,9.DOI:10.19693/j.issn.1673-3185.03229
泵喷定子襟翼作动对转子非定常力抑制方法数值研究
Numerical investigation on unsteady force suppression of pump-jet rotor by oscillating stator trailing edge flaps
摘要
Abstract
[Objectives]The unsteady force of the rotor is the main excitation source of pump-jet shafting vibration,and rotor-stator interaction has an important impact on the characteristics of the unsteady force.Therefore,the suppression method of pump-jet unsteady force should be studied.[Methods]Oscillating flaps are introduced onto the trailing edge of the stator.The secondary flow generated by the flaps is used to af-fect the rotor inflow conditions so as to suppress the unsteady force of the rotor.A numerical model is estab-lished on the basis of the unsteady Reynolds-averaged Navier-Stokes equation(URANS)method of the shear stress transport(SST k-ω)turbulence model,and a SUBOFF with full appendages and a pump-jet with stator trailing edge flaps is taken as the research object.Aiming at suppressing the unsteady force amplitude at the ro-tor blade passing frequency,the oscillating law of the stator flaps is given.[Results]The results show that under the optimal control of the flaps,the hydrodynamic performance of the pump-jet varies by less than 1％,the axial unsteady force of the rotor decreases by 83.35％at the rotor blade pass frequency(BPF)and that of a single rotor blade decreases by 81.8％at the rotor BPF.Further analysis shows that the oscillating flaps can manipulate the stator wake and velocity on the rotor inlet plane.[Conclusions]The results show that stator trailing edge flaps can significantly suppress the characteristic line spectrum of rotor unsteady force while maintaining hydrodynamic performance,which will shed some light on controlling the BPF line spectra of pump-jets.关键词
泵喷推进器/非定常力/襟翼作动/转-定子干扰/流动调控Key words
pump-jet propulsor/unsteady force/oscillating stator flaps/stator-rotor interaction/active flow control分类
交通工程引用本文复制引用
汤王豪,黄修长,饶志强,华宏星..泵喷定子襟翼作动对转子非定常力抑制方法数值研究[J].中国舰船研究,2023,18(6):21-29,9.基金项目
上海交通大学"深蓝计划"基金资助项目(SL2021MS007) （SL2021MS007）
上海高校东方学者特聘教授岗位跟踪计划 （）
上海市科委启明星资助项目(18QA1402000) （18QA1402000）
