收藏切换
Study on the effect of isotropic permeable materials fused with microblowing on the turbulent boundary layer structure of a flat plate
收藏切换
PDF
Hai DU1, 2, 3, 4, *, Gang LI2, Kaiyuan ZHANG2, Yunao HE2
Journal of Experiments in Fluid Mechanics | 2026, 40(3) : 64 - 78
Less
收藏切换
Journal of Experiments in Fluid Mechanics | 2026, 40(3): 64-78
Fundamental Research and Application
Study on the effect of isotropic permeable materials fused with microblowing on the turbulent boundary layer structure of a flat plate
Full
Hai DU1, 2, 3, 4, *, Gang LI2, Kaiyuan ZHANG2, Yunao HE2
Affiliations
  • 1School of Aeronautics and Astronautics, Xihua University, Chengdu 610039, China
  • 2School of Energy and Power Engineering, Xihua University, Chengdu 610039, China
  • 3Engineering Research Center of Intelligent Air- Ground Integration Vehicle and Control (Xihua University), Ministry of Education, Chengdu 610039, China
  • 4Key Laboratory of Rotor Aerodynamics, China Aerodynamics Research and Development Center, Mianyang 621000, China
Published: 2026-06-25 doi: 10.11729/syltlx20240025
Outline
收藏切换

Viscous drag is one of the main sources of civil aircraft drag, and turbulent drag plays a dominant role in viscous drag, so it is of great engineering and scientific significance to carry out turbulence drag reduction control. In this paper, under the condition of a zero pressure gradient experiment, the drag reduction control of the plate boundary layer with isotropic permeating materials fused with micro-blowing is studied. The results show that the isotropic permeable material can significantly reduce the friction drag of the plate surface, and the maximum local drag reduction rate in this paper can reach 55.4%. In addition, compared with the control of a single isotropic permeable material, the isotropic permeating material integrated with micro-blowing not only improves the drag reduction rate in the local region but also increases the flow area of the downstream drag reduction region due to the “memory" of the influence of micro-blowing on the turbulent structure, improving the efficiency of drag reduction. Hot-wire velocity measurement results show that the isotropic permeable material with microblowing can reduce the velocity gradient of the viscous bottom layer of the boundary layer and reduce the momentum exchange between the inner and outer layers. The flow visualization technology of Time-Resolved Particle Image Velocimetry (TR−PIV) showed that the isotropic permeable material integrated with micro-blowing could increase the thickness of the turbulent boundary layer and the pulsation intensity of the flow direction. At the same time, the large-scale high-speed strip structure in the steam-wise direction break down into small-scale structure. The self-holding process and sweeping process near the wall are suppressed, thus achieving drag reduction.

turbulent boundary layer  /  microblowing  /  coherent structures  /  turbulence intensity  /  reduce drag
Hai DU, Gang LI, Kaiyuan ZHANG, Yunao HE. Study on the effect of isotropic permeable materials fused with microblowing on the turbulent boundary layer structure of a flat plate[J]. Journal of Experiments in Fluid Mechanics, 2026 , 40 (3) : 64 -78 . DOI: 10.11729/syltlx20240025
Year 2026 volume 40 Issue 3
PDF
141
62
Cite this Article
BibTeX
Article Info
doi: 10.11729/syltlx20240025
  • Receive Date:2024-04-03
  • Online Date:2026-09-02
  • Published:2026-06-25
Article Data
Affiliations
History
  • Received:2024-04-03
  • Revised:2024-05-18
  • Accepted:2024-06-03
Affiliations
    1School of Aeronautics and Astronautics, Xihua University, Chengdu 610039, China
    2School of Energy and Power Engineering, Xihua University, Chengdu 610039, China
    3Engineering Research Center of Intelligent Air- Ground Integration Vehicle and Control (Xihua University), Ministry of Education, Chengdu 610039, China
    4Key Laboratory of Rotor Aerodynamics, China Aerodynamics Research and Development Center, Mianyang 621000, China
References
Share
https://castjournals.cast.org.cn/joweb/syltlx/EN/10.11729/syltlx20240025
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT