Absolute instabilities of a finite length vortex street with external axial velocities

  • Tak Wai Chiu University of Exeter
  • Aaron Hanson Berney University of Exeter


This paper presents a numerical algorithm for the study of the absolute instability of a vortex street with external axial velocities and finite length vortices. The aim is that this will be of relevance to the study of the flow over slender bodies at yaw. The algorithm is based on the vortex dynamics momentum equation. Special core treatments have been implemented to tackle the problem of infinite self-induced velocity. A small perturbation method is then used to formulate the eigenvalue problem.



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May 31, 2023
How to Cite
CHIU, Tak Wai; BERNEY, Aaron Hanson. Absolute instabilities of a finite length vortex street with external axial velocities. Computer Assisted Methods in Engineering and Science, [S.l.], v. 5, n. 2, p. 161-172, may 2023. ISSN 2956-5839. Available at: <https://cames.ippt.pan.pl/index.php/cames/article/view/1352>. Date accessed: 18 july 2024.