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  • The study presents evaluation of optical measurements of the air flow field near the fluttering profile NACA0015 with two-degrees of freedom, Mach number of the flutter occurrence were M=0.21 and M=0.45. Aerodynamic forces (drag and lift components) were evaluated independently on the upper and lower surfaces of the profile. Using the mentioned decomposition, the new information about mechanism of flutter properties was obtained. The forces on the upper and lower surfaces are phase shifted and are partially eliminated as a result of the circulation around the profile. The cycle changes of these forces cause the permanent energy contribution from the airflow to the vibrating system.
  • The study presents evaluation of optical measurements of the air flow field near the fluttering profile NACA0015 with two-degrees of freedom, Mach number of the flutter occurrence were M=0.21 and M=0.45. Aerodynamic forces (drag and lift components) were evaluated independently on the upper and lower surfaces of the profile. Using the mentioned decomposition, the new information about mechanism of flutter properties was obtained. The forces on the upper and lower surfaces are phase shifted and are partially eliminated as a result of the circulation around the profile. The cycle changes of these forces cause the permanent energy contribution from the airflow to the vibrating system. (en)
Title
  • Unsteady aerodynamic forces measured on a fluttering profile
  • Unsteady aerodynamic forces measured on a fluttering profile (en)
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  • Unsteady aerodynamic forces measured on a fluttering profile
  • Unsteady aerodynamic forces measured on a fluttering profile (en)
skos:notation
  • RIV/61388998:_____/14:00431885!RIV15-GA0-61388998
http://linked.open...avai/riv/aktivita
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  • I, P(GA13-10527S)
http://linked.open...iv/cisloPeriodika
  • 2
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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  • 52036
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  • RIV/61388998:_____/14:00431885
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  • aeroelastic experiments; self-excited vibrations; wind tunnel; interferometry (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [2FAE3FE0258B]
http://linked.open...i/riv/nazevZdroje
  • Engineering Mechanics
http://linked.open...in/vavai/riv/obor
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http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 21
http://linked.open...iv/tvurceVysledku
  • Kozánek, Jan
  • Vlček, Václav
  • Zolotarev, Igor
issn
  • 1802-1484
number of pages
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