NASA NTRS · 19870000482
Analyzing Wakes From Hovering-Helicopter Rotor Blades
Abstract
New method for analyzing free wake of hovering-helicopter rotor produces more reliable results and requires less computer time. Copes with wake instabilities, both physical and numerical, that afflict usual time-stepping analysis methods. Tip-vortex position, in coordinates moving with rotor blade, updated in relaxation procedure. Wake-airflow solution reached when updates converge to steady wake shape.
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Bliss, D. B., Wachspress, D. A., Quackenbush, T. R., Bilanin, A. J.. 1987-10-01. Analyzing Wakes From Hovering-Helicopter Rotor Blades. https://ntrs.nasa.gov/citations/19870000482
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