The study of shielding influence of the disks placed coaxially on rotational oscillations of the cylinder in the airflow

Nikolay Kiselev, Anatoly Ryabinin

Research output

Abstract

The experimental study of shielding effects of the disk placed upstream of a cylinder is described. The disk reduces the drag of the cylinder and changes its dynamic characteristics. Two cylinders with different aspect ratio are studied. Without a disk, an elastically fixed cylinder in the airflow performs rotational oscillations with constant amplitude. The influence of the aerodynamic force on the damping of the oscillations depends on the disk diameter, the gap between disk and cylinder and aspect ratio of the cylinder. The disk reduces the amplitude of steady rotational oscillations or causes the damped rotational oscillations. A mathematical model is proposed for describing the rotational steady and damped oscillations of a cylinder with the disk.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalAIP Conference Proceedings
Volume1959
Issue number050016
DOIs
Publication statusPublished - 2 May 2018

Scopus subject areas

  • Physics and Astronomy(all)

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