Influence of the amplitude-frequency characteristics of two-mode oscillations at unilateral surface effect on the transonic streamline of the symmetrical wing profile

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Abstract

The effect of two-mode oscillations with frequencies that differ in a twofold is investigated under different energy contributions of each mode. The results of a parametric study of influence of the forced two-mode oscillations of the profile section on the transonic streamline that do not cause either a buffeting or a flutter are obtained. With power decreasing, the increase in lift force is reduced by almost the same factor. Quantitative difference is significant for the lift coefficient at high frequencies for all values of the oscillations power.

Original languageEnglish
Title of host publication19th International Conference on the Methods of Aerophysical Research, ICMAR 2018
Editors Fomin
PublisherAmerican Institute of Physics Inc.
Number of pages5
Volume2027
ISBN (Electronic)9780735417472
DOIs
Publication statusPublished - 2 Nov 2018
Event19th International Conference on the Methods of Aerophysical Research, ICMAR 2018 - Akademgorodok, Novosibirsk, Russian Federation
Duration: 13 Aug 201819 Aug 2018

Publication series

NameAIP Conference Proceedings
PublisherAMER INST PHYSICS
Volume2027
ISSN (Print)0094-243X

Conference

Conference19th International Conference on the Methods of Aerophysical Research, ICMAR 2018
CountryRussian Federation
CityAkademgorodok, Novosibirsk
Period13.08.201819.08.2018

Keywords

  • VIBRATIONS
  • AIRFOIL

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