Experimental and.pdf (1.44 MB)
Experimental and computational investigation of flow structure of buoyancy induced flow in heated rotating cavities
journal contribution
posted on 2023-06-10, 00:54 authored by Seyed Mostafa FazeliSeyed Mostafa Fazeli, Vasudevan KanjirakkadVasudevan Kanjirakkad, Christopher LongThis paper presents Laser-Doppler Anemometry (LDA) measurements obtained from the Sussex Multiple Cavity test facility. This facility comprises a number of heated disc cavities with a cool bore flow and is intended to emulate the secondary air system flow in an H.P compressor. Measurements were made of the axial and tangential components of velocity over the respective range of Rossby, Rotational and Axial Reynolds numbers, (Ro, Re_? and Re_z), 0.32 < Ro < 1.28, Re_? = 7.1×10^5, 1.2×10^4 < Re_z < 4.8×10^4 and for the values of the buoyancy parameter (ß?T) : 0.50 < ß?T < 0.58. The frequency spectra analysis of the tangential velocity indicates the existence of pairs of vortices inside the cavities. The swirl number, Xk, calculated from these measurements show that the cavity fluid approaches solid body rotation near the shroud region. The paper also presents results from Unsteady Reynolds-Averaged Navier-Stokes (URANS) calculations for the test case where Ro?=?0.64. The time-averaged LDA data and numerical results show encouraging agreement.
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Publication status
- Published
File Version
- Published version
Journal
Journal of the Global Power and Propulsion SocietyISSN
2515-3080Publisher
Global Power and Propulsion Society (GPPS)External DOI
Volume
5Page range
148-163Department affiliated with
- Engineering and Design Publications
Research groups affiliated with
- Thermo-Fluid Mechanics Research Centre Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2021-09-10First Open Access (FOA) Date
2021-09-10First Compliant Deposit (FCD) Date
2021-09-10Usage metrics
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