Characterization of symmetrical supersonic compressible fluid flow using quadriwave lateral shearing interferometry

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F25%3A00014159" target="_blank" >RIV/46747885:24220/25:00014159 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1117/12.3072922" target="_blank" >https://doi.org/10.1117/12.3072922</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Characterization of symmetrical supersonic compressible fluid flow using quadriwave lateral shearing interferometry
Original language description
This study investigates the characterization of symmetric supersonic compressible fluid flow using Quadriwave Lateral Shearing Interferometry (QWLSI), a high-resolution, non-invasive optical technique. QWLSI captures phase variations by interfering slightly sheared duplicates of the wavefront, enabling direct measurement of its derivatives and reconstruction of the original phase distribution. To retrieve the three-dimensional flow field, tomographic reconstruction was performed using the inverse Abel transform, which is suitable for axisymmetric refractive index distributions. Experimental validation was carried out by analyzing the airflow behind a circular nozzle, demonstrating the method’s capability to resolve the structure of supersonic jets. The developed QWLSI- based approach offers high interferometric sensitivity and robustness, establishing it as a valuable diagnostic tool for flow analysis under extreme conditions, with potential applications in aerodynamics, propulsion, and high-speed fluid dynamics.
Czech name
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Czech description
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Project
<a href="/en/project/GA24-11973S" target="_blank" >GA24-11973S: Robust common-path interferometry with high dynamic range for shock wave research in harsh environments</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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