ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Review of porous media used in flow control and aerodynamic noise reduction
Received date: 2022-08-15
Revised date: 2022-08-29
Accepted date: 2022-10-09
Online published: 2022-11-17
Supported by
National Natural Science Foundation of China(51506179)
Flow control is an important research field in aerodynamics， and will become a new means for aerodynamic gain design for future aircraft and power plants. Bionics-inspired porous media treatment is a promising passive flow control technology with significant potential for flow control and aerodynamic noise reduction. Firstly， the origin and motivation of porous media used in flow and noise control are reviewed， and then the configurations and modeling methods of different type of porous media are clarified. Subsequently， structure design and effectiveness of application of porous media for flow control and aerodynamic noise reduction of blunt body external flow， isolated airfoil and rotating machinery are explored based on domestic and overseas research. Current research has shown that porous media has better flow improvement and noise reduction capabilities with suitable structural design， material properties and working conditions. However， there is no mature design theory to guide the application of porous media， and more extensive research on applicable conditions is also lacking. Multi-scale coupling flow and eddy dynamics research are very important for in-depth understanding of the change of flow source and noise reduction mechanism by porous media. Further optimization of the internal configuration， macro-parameters and design pattern of porous media is important and urgent work in future to advance the application of this technology to engineering.
Hanru LIU , Nanshu CHEN , Yu LIU , Zhijie HU . Review of porous media used in flow control and aerodynamic noise reduction[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2023 , 44(16) : 27923 -027923 . DOI: 10.7527/S1000-6893.2022.27923
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