典型文献
A boundary surrogate model for micro/nano grooved surface structure applied in turbulence flow control over airfoil
文献摘要：
The application of grooved surface structure is an emerging and effective means in tur-bulence flow control.However,for a realistic configuration,the global flow field described directly by simple application of massive grids makes it unfeasible to simulate.In this paper,a boundary surrogate model reproducing the effect of microscopic near-wall region is proposed to improve computational efficiency.The surrogate model trained with Lattice Boltzmann Method (LBM) con-sidering the rarefied effect based on real micro/nanoflow field is new among literature,which accu-rately shows flow characteristics of the micro/nano structure.With this approach,numerical simulations via Reynolds-averaged Navier Stokes equations with modified wall boundary condition are performed in subsonic and transonic flow.The results show that micro/nano grooved surface structure has the effect of delaying transition from laminar to turbulence,thus reducing the skin friction significantly.Analysis of turbulence intensity and turbulence kinetic energy shows that the near-wall flow field of grooved airfoil is more stable compared with that of the smooth airfoil.The reducing rate of maximum turbulent intensity reaches 13.39％.The paper shows a perspective for further application of micro/nano groove structure to turbulence flow control in aircraft design by providing an accurate and efficient simulation method.
文献关键词：
中图分类号：
作者姓名：
Liyue WANG;Cong WANG;Shuyue WANG;Sheng QIN;Gang SUN;Bo YOU;Yongjian ZHONG
作者机构：
Department of Aeronautics & Astronautics,Fudan University,Shanghai 200433,China;Department of Material Science,Fudan University,Shanghai 200433,China;AECC Commercial Aircraft Engine Co.,Ltd.,Shanghai 200241,China
文献出处：
引用格式：
[1]Liyue WANG;Cong WANG;Shuyue WANG;Sheng QIN;Gang SUN;Bo YOU;Yongjian ZHONG-.A boundary surrogate model for micro/nano grooved surface structure applied in turbulence flow control over airfoil)[J].中国航空学报（英文版）,2022(02):62-73
A类：
bulence,unfeasible,rarefied,nanoflow
B类：
boundary,surrogate,model,grooved,surface,structure,applied,turbulence,control,over,airfoil,application,emerging,effective,means,However,realistic,configuration,global,field,described,directly,by,simple,massive,grids,makes,simulate,In,this,paper,reproducing,microscopic,near,wall,region,proposed,improve,computational,efficiency,trained,Lattice,Boltzmann,Method,LBM,sidering,new,among,literature,which,rately,shows,characteristics,With,approach,numerical,simulations,via,Reynolds,averaged,Navier,Stokes,equations,modified,condition,performed,subsonic,transonic,results,that,has,delaying,transition,from,laminar,thus,reducing,skin,friction,significantly,Analysis,intensity,kinetic,energy,more,stable,compared,smooth,maximum,turbulent,reaches,perspective,further,aircraft,design,providing,accurate,efficient,method
AB值：
0.502501
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
