PSI - Issue 72

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ScienceDirect

Procedia Structural Integrity 72 (2025) 85–90

12th Annual Conference of Society for Structural Integrity and Life (DIVK12) Smoke-wire visualization of the flow dynamics through a fluidic thrust vectoring system based on Coanda effect Emre Kara a, *, Milad Deniz Enderya a , Dilek Funda Kurtuluş b a Gaziantep University, Faculty of Aeronautics and Aerospace, Aerospace Engineering Department, Gaziantep, 27310, Türkiye b METU, Faculty of Engineering, Aerospace Engineering Department, Ankara, 06800, Türkiye Abstract Fluid dynamics, a foundational area of fluid mechanics, is a vital field with applications across numerous industries. Its principles are utilized in the design and structural integrity of aerodynamic vehicles and in the prediction of natural phenomena such as airflow patterns. An understanding of fluid behavior under varying conditions is essential for the optimization of processes and systems. This study examines a distinctive approach to visualizing fluid flow, namely Smoke Wire Visualization. While the final experiment setup in conventional cases is relatively simple, integrating novel systems requires meticulous attention to detail. This paper outlines the iterative process of conceptualizing, configuring, and refining the Smoke Wire Visualization technique of the flow dynamics through a fluidic thrust vectoring system based on Coanda effect. In the realm of engineering, compromise is inevitable, and this study exemplifies the pursuit of extracting optimal insights from fluid dynamics through innovative visualization methods. © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Aleksandar Sedmak, Branislav Djordjevic, Simon Sedmak Dr. Simon Sedmak, ssedmak@mas.bg.ac.rs, Innovation Center of Faculty of Mechanical Engineering, Belgrade, Serbia

Keywords: Coanda; flow visualization; fluid dynamics; smoke wire

1. Introduction In the experiments, visualization with smoke wire, which is one of the techniques used for visualizing flows, was employed. The technique was selected for its minimal impact on the flow, its efficiency at Reynolds speeds below

* Corresponding author. Tel.: +90-342-360-1200; fax: +90-342-360-7039. E-mail address: emrekara@gantep.edu.tr

2452-3216 © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Aleksandar Sedmak, Branislav Djordjevic, Simon Sedmak Dr. Simon Sedmak, ssedmak@mas.bg.ac.rs, Innovation Center of Faculty of Mechanical Engineering, Belgrade, Serbia 10.1016/j.prostr.2025.08.077