Linear Stability Analysis in a Compressible Axisymmetric Swirling Jet

Zhi Wei Guo; Si Min Shen; Wei Min Feng; Bo Fu Wang

doi:10.4028/www.scientific.net/AMM.574.15

Paper Titles

Preface and Organizing Committee

Mechanics Analysis of Reduction Case Based on the Finite Element Method
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Fracture Failure Mechanism Analysis on LP Blades of a Gas Turbine
p.8

Linear Stability Analysis in a Compressible Axisymmetric Swirling Jet
p.15

Contact Stress FEM Analysis of Deep Groove Ball Bearing Based on ANSYS Workbench
p.21

Design and Simulation of Golf Putter
p.27

Simulation Analysis of Firing Dynamics on a New Heavy Machine Gun
p.32

Earthquake-Response Analysis of Long-Span Cable-Stayed Bridge under Uniform and Non-Uniform Excitations
p.36

Vibrational Frequencies Calculation of Fluid Conveying Pipes Based on Fluid-Structure Coupling and Acoustic-Structure Coupling Models
p.41

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 574Linear Stability Analysis in a Compressible...

Linear Stability Analysis in a Compressible Axisymmetric Swirling Jet

Abstract:

Temporal linear stability of a compressible axisymmetric swirling jet is investigated. The present work extends a previous analysis to include the effects of swirl number on the stability of flow dynamics. Results obtained show that the optimal growth rate of disturbance for azimuthal wavenumber n = -1 is larger than that for n = -2 while the corresponding frequencies for both n increases as axial wavenumber increases. As swirl number q increases, the optimal growth rate of disturbance also increases. What is more, there is an optimal swirl number for small axial wavenumbers, which is different from the situation for medium and large axial wavenumbers.

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Periodical:

Applied Mechanics and Materials (Volume 574)

Pages:

15-20

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.574.15

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Online since:

July 2014

Authors:

Zhi Wei Guo, Si Min Shen, Wei Min Feng, Bo Fu Wang*

Keywords:

Compressible, Stability, Swirling Jet

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