Numerical Study on Passive Control of Airfoil-Vortex Interaction Based on Slotted Leading Edges

ZOU Sen; LIU Yong; WANG Qi

doi:10.21656/1000-0887.400028

Volume 40 Issue 10

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ZOU Sen, LIU Yong, WANG Qi. Numerical Study on Passive Control of Airfoil-Vortex Interaction Based on Slotted Leading Edges[J]. Applied Mathematics and Mechanics, 2019, 40(10): 1159-1168. doi: 10.21656/1000-0887.400028

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Numerical Study on Passive Control of Airfoil-Vortex Interaction Based on Slotted Leading Edges

doi: 10.21656/1000-0887.400028

Numerical Study on Passive Control of Airfoil-Vortex Interaction Based on Slotted Leading Edges

Funds: The National Natural Science Foundation of China(11962018)

Received Date: 2019-01-10
Rev Recd Date: 2019-01-24
Publish Date: 2019-10-01

Abstract

Abstract

The slotting method is a simple flow passive control method. In order to search for a passive control method that can effectively mitigate the bladevortex interaction effects, a NACA 0012 airfoil was used as the research object, 4 kinds of the NACA 0012 airfoil models with differently slotted leading edges were designed. Numerical simulations of 2D parallel bladevortex interaction (airfoilvortex interaction) were performed for the slotted airfoils and the benchmark airfoil to examine the effects of the freestream velocity, the vortex strength and the disturbing distance on the lift coefficient. The results show that, the slotted leading edge can mitigate the airfoilvortex interaction effects, but with an influence on the lift coefficient. The vertical cavity with a width of 2.5% of the chord length can obviously mitigate the airfoilvortex interaction effects with low lift coefficient penalties, having a wide application range.
- airfoil-vortex interaction,
- slotted leading edge,
- passive control,
- large eddy simulation

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References(24)

References

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