Work

Unstable Gas Flow in a Flat Channel under the Influence of a Transverse Force Field: Self-oscillations of the Jet

Year: 2024

Type: article

Abstract: A subsonic flow of an ideal gas through a flat channel is considered. In a finite channel region, a transverse force field acts, attracting the flow toward the channel axis. This field leads to flow instability, even at a relatively weak magnitude. For a weak force field, the instability is symmetrical relative to the channel axis, while for a strong force field, it becomes asymmetrical and self-oscillations occur. The characteristics of this instability have been studied numerically in this work. Possible astrophysical implications of this phenomenon are discussed.

Source: Fluid Dynamics

DOI: 10.1134/s0015462824605199

Authors: S. D. Korolkov, V. V. Izmodenov

Institutions: Lomonosov Moscow State University, Space Research Institute, Institute for Problems in Mechanics

Language: English

Topic: Fluid Dynamics and Turbulent Flows

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

OpenAlex ID: W4408260522

FWCI: 0.201

Cites: 11

Cited by: 1

Related to: 10