Rajamanickam, K and Potnis, A and Basu, S (2020) Characterization and dynamics of spray flow field in gas turbine swirl cup. In: 14th International Conference on Liquid Atomization and Spray Systems, ICLASS 2018, 22-26 July 2018, Chicago; United States.
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In this study, time-resolved PIV measurements have been employed to understand the complex flow dynamics in a gas turbine swirl cup. The tested geometry consists of twin radial entry vane swirlers and a centrally mounted hollow cone fuel injector. Experiments are carried out with both co and counter-rotation configurations of the two radial swirlers. In addition, the flare geometry at the exit of swirl cup i.e. the flare divergence angle and mixing length is also varied. Essentially, the main aim of this study is to identify how the swirler configuration (co/counter rotation) and flare geometry influences the global evolution and dynamics of the flow field downstream of the swirler exit. The mean global flow field is presented, and the most dominant energetic and dynamic modes governing the injector flow field are meticulously analyzed with help of proper orthogonal and dynamic mode decomposition (POD, DMD) tools. © 2018 Solar Turbines Incorporated.
| Item Type: | Conference Paper |
|---|---|
| Publication: | ICLASS 2018 - 14th International Conference on Liquid Atomization and Spray Systems |
| Publisher: | ILASS Europe, Institute for Liquid Atomization and Spray Systems |
| Additional Information: | The copyright of this article belongs to ILASS Europe, Institute for Liquid Atomization and Spray Systems |
| Keywords: | DMD; Gas turbine swirl cup; POD; Spray dynamics |
| Department/Centre: | Division of Mechanical Sciences > Mechanical Engineering |
| Date Deposited: | 02 Mar 2021 05:55 |
| Last Modified: | 09 Dec 2022 05:36 |
| URI: | https://eprints.iisc.ac.in/id/eprint/66638 |
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