Improvement of wind turbine aerodynamic performance by vanquishing stall with active multi air jet blowing

Morteza Mohammadi and Mohammad Javad Maghrebi

Energy, 2021, vol. 224, issue C

Abstract: The effects of jet blowing on blade suction side of NREL phase VI horizontal axis wind turbine (HAWT) for alleviation of degraded flow due to boundary layer separation were investigated. A 3D innovative multi-jet blade is simulated using FLUENT 18.2 software applying SST k-ω turbulence model. The spanwise blade portions for jets are outer, middle and inner. Furthermore, twelve jets with 0.04 local chord width have deployed in four chordwise locations of x/c = 0.1, x/c = 0.3, x/c = 0.5 and x/c = 0.7. The torque is sensitive to some dimensionless parameters such as Tip Speed Ratio (TSR) and jet velocity ratio (VR). At the best condition, torque increases about two times with respect to baseline blade. The jet velocity ratios are 1.2, 2.0, 2.4, 2.8, and 3.2.

Keywords: Wind turbine; Air jet blowing; Separation; Aerodynamic performance (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:224:y:2021:i:c:s0360544221004254

DOI: 10.1016/j.energy.2021.120176

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