Self-oscillatory interactions of supersonic streams with cylinders, placed in open channels

TL;DR

This study investigates the complex self-oscillatory interactions between supersonic streams and cylinders in open channels, using CFD simulations to analyze flow regimes at high Mach numbers.

Contribution

The paper introduces a CFD approach to analyze self-oscillatory behaviors of supersonic flows interacting with cylinders in channels with varying cross-sectional areas.

Findings

Self-oscillatory regimes occur at Mach numbers 3 to 4.5.

Implicit third order Runge-Kutta scheme effectively captures flow dynamics.

Flow interactions depend on channel geometry and Mach number.

Abstract

Interactions of supersonic uniform streams with cylindrical bodies, placed in open channels, are studied. Channels of rotation with the interval of cross-sectional area decreasing are considered. Two-dimensional Euler equations are solved by an implicit third order Runge-Kutta scheme. Self-oscillatory regimes are found in CFD studies at stream Mach numbers of 3 to 4.5.