Numerical Study of Von Kármán Vortex Streets Inside Heat Exchangers

Stanley A. Omenai

doi:10.30574/ijsra.2024.13.2.2444

ISSN Approved Journal || eISSN: 2582-8185 || CODEN: IJSRO2 || Impact Factor 8.2 || Google Scholar and CrossRef Indexed

Peer Reviewed and Referred Journal || Free Certificate of Publication

Research and review articles are invited for publication in March 2026 (Volume 18, Issue 3) Submit manuscript

Numerical Study of Von Kármán Vortex Streets Inside Heat Exchangers

Stanley A. Omenai ^*

Department of Mechanical Engineering, Georgia Institute of Technology, Atlanta, USA.

Research Article

International Journal of Science and Research Archive, 2024, 13(02), 2504–2518.
Article DOI: 10.30574/ijsra.2024.13.2.2444
DOI url: https://doi.org/10.30574/ijsra.2024.13.2.2444

Publication history

Received on 31 October 2024; revised on 05 December 2024; accepted on 07 December 2024

Abstract

This study highlights the occurrence of vortex shedding for flow around a bluff cylindrical object for Reynold’s number between 500 and 1400.
Using a heat exchanger model with a single tube, the vortex shedding in the wake of the cylindrical tube is numerically studied for various Reynold’s number. The shedding frequency is also determined and the Strouhal number, St, computed. The values of Strouhal numbers obtained are found to compare with those found in literature.
The presence of lift and drag forces, which occurs as a result of the vortex shedding are also observed. These can lead to catastrophic vibrations in the tubes when the vortex shedding frequency resonates with the natural frequency of the tubes.
The effects of variation of fluid properties due to temperature on vortex shedding and shear stress are also studied.
Finally, a characteristic tube bank is used to study the damping effects created by adjacent tubes in a typical heat exchanger tube array.

Keywords

Von Kármán; Vortex Shedding; Reynold’s Number; Strouhal Number; Bluff Cylinder; Baffle

Download Article PDF

https://ijsra.net/sites/default/files/fulltext_pdf/IJSRA-2024-2444.pdf

Preview Article PDF

How to cite this article

Stanley A. Omenai. Numerical Study of Von Kármán Vortex Streets Inside Heat Exchangers. International Journal of Science and Research Archive, 2024, 13(02), 2504–2518. https://doi.org/10.30574/ijsra.2024.13.2.2444

Copyright © Author(s). All rights reserved. This article is published under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits use, sharing, adaptation, distribution, and reproduction in any medium or format, as long as appropriate credit is given to the original author(s) and source, a link to the license is provided, and any changes made are indicated.

All statements, opinions, and data contained in this publication are solely those of the individual author(s) and contributor(s). The journal, editors, reviewers, and publisher disclaim any responsibility or liability for the content, including accuracy, completeness, or any consequences arising from its use.