title: Rotational oscillations of the cylinder with stabilizer in the gas flow
metadata.name: dc.contributor.author
metadata.value: Kiselev, Nikolai A.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Ryabinin, Anatoly N.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2019-12-06T13:20:31Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2019-12-06T13:20:31Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2019-12
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Kiselev N.A., Ryabinin A.N. Rotational oscillations of the cylinder with stabilizer in the gas flow. Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 2019, vol. 6 (64), issue 4, pp. 672–679.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/11701/spbu01.2019.412
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/16750
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: A mathematical model for describing the rotational oscillations of a cylinder with a stabilizer
  in the air flow is considered. The equation of motion of a cylinder with a stabilizer
  contains moments of aerodynamic forces and suspension resistance. The Krylov - Bogolyubov method transforms the equation to a system of two ordinary differential equations
  for a slowly varying amplitude of oscillations and a phase. Solutions are found that
  correspond to steady-state oscillations with a constant amplitude. The model predicts that
  the dependence of the square of the oscillation amplitude is a linear function of the reverse
  velocity of the air flow. The Strouhal number of cylinder oscillations is a linear function of
  the square of the amplitude and, therefore, the dependence of the Strouhal number on the
  inverse velocity is also linear. In the wind tunnel, experiments were conducted that tested
  the model predictions. A comparison of the predictions of the mathematical model with
  the results of experiments conducted in a wind tunnel was made. In experiments with an
  oscillating cylinder, a laser pointer was attached to the aft part of the cylinder, the beam of
  which crossed the surface of the photodiode as the cylinder rotated. The photodiode signal
  was recorded by a Velleman PCS500A PC oscilloscope connected to a personal computer.
  Decoding the signal allowed us to determine the period and amplitude of oscillations. Experiments
  confirmed the predictions of the mathematical model.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Mathematics. Mechanics. Astronomy;Volume 6 (64); Issue 4
metadata.lang: -
metadata.name: dc.subject
metadata.value: wind tunnel
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: bluff body
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: unsteady forces
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: oscillations
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: mathematical simulation
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Rotational oscillations of the cylinder with stabilizer in the gas flow
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 672-679.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/16750/1/672-679.pdf
resources.format: Adobe PDF
resources.size: 1,01 MB