Switch of tonal noise generation mechanisms in airfoil transitional flows
نویسندگان
چکیده
Large eddy simulations are performed to study tonal noise generation by a NACA0012 airfoil for Reynolds numbers in the range $0.5\ifmmode\times\else\texttimes\fi{}{10}^{5}\ensuremath{\le}R\phantom{\rule{0}{0ex}}e\ensuremath{\le}4\ifmmode\times\else\texttimes\fi{}{10}^{5}$. Different flow patterns responsible originate from laminar separation bubbles over surface. Intermittency and transition turbulence plays key role spectrum.
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ژورنال
عنوان ژورنال: Physical review fluids
سال: 2022
ISSN: ['2469-9918', '2469-990X']
DOI: https://doi.org/10.1103/physrevfluids.7.084701