PROSPECTS FOR PRACTICAL APPLICATION CONDITIONS OF ABNORMALLY HIGH AMPLITUDE SELF-OSCILLATING FLUID FLOW

Apr 23, 2021, 12:20 PM
15m
1224 (Lomonosov st. 9)

1224

Lomonosov st. 9

ITMO University
oral Energy Saving and Energy Efficiency Energy Saving and Energy Efficiency

Speaker

Mr Sergey Gastev (Alekseevich)

Description

The outflow of an incompressible fluid from a rectangular opening covered by a semicircular arched element is considered. The self-oscillatory expiration regime is numerically investigated. The computational algorithm implemented in the STAR-CCM+ software package includes a grid approximation in space, an implicit time integration method, and an algebraic multi-grid method for solving systems of algebraic equations. A variant of the hole geometry with an aspect ratio of l⁄d=2 is considered. An explanation is given to the mechanism of the self-oscillatory process. The distribution of oscillation amplitude values in space at the exit from the hole is determined. Some possibilities of practical application of the described phenomenon are determined.

Publication Impact Factor journals
Affiliation of speaker Sergey Gastev

Primary authors

Mr Sergey Gastev (Alekseevich) IGOR BARANOV Mr Sergey Burtsev (Ivanovich)

Presentation materials

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