Controlling flow separation using traveling wave actuation
Controlling flow separation using traveling wave actuation
Amir Akbarzadeh, Department of Mechanical Engineering, Texas A&M University
Borazjani Iman, Department of Mechanical Engineering, Texas A&M University
DOI:
Large-eddy simulation of flow over a NACA18 airfoil at an angle of attack of 15 degrees is performed. The fully separated flow on the suction side reattaches by employing a surface morphing in the form of bio-inspired low-amplitude traveling wave actuations. The simulations show 44% lift increase compared to the unactuated airfoil, and reveal that the traveling wave actuations are more effective than other types of actuations, including the standing waves.
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