Detached eddy simulation of an adjustable radial ejector
Paper
Paper/Presentation Title | Detached eddy simulation of an adjustable radial ejector |
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Presentation Type | Paper |
Authors | Al-Rbaihat, R. (Author), Malpress, R. (Author), Buttsworth, D. (Author) and Saleh, Kh. (Author) |
Editors | Lau, T. C. W. and Kelso, R. M. |
Journal or Proceedings Title | Proceedings of the 21st Australasian Fluid Mechanics Conference (AFMC 2018) |
ERA Conference ID | 42494 |
Number of Pages | 4 |
Year | 2018 |
Publisher | Australasian Fluid Mechanics Society |
Place of Publication | Australia |
ISBN | 9780646597843 |
Web Address (URL) of Paper | https://people.eng.unimelb.edu.au/imarusic/proceedings/21%20AFMC%20TOC.html |
Conference/Event | 21st Australasian Fluid Mechanics Conference (AFMC 2018) |
Australasian Fluid Mechanics Conference | |
Event Details | Australasian Fluid Mechanics Conference Rank A A A A A A A A A A A A A A A A A A A A A A A A A A A A |
Event Details | 21st Australasian Fluid Mechanics Conference (AFMC 2018) Parent Australasian Fluid Mechanics Conference Delivery In person Event Date 10 to end of 13 Dec 2018 Event Location Adelaide, Australia Event Venue Adelaide Convention Centre Event Web Address (URL) |
Abstract | A high-performance Adjustable Radial Ejector (ARE) might be capable of achieving optimum performance over a wide range of operating conditions by changing the primary nozzle and ejector duct throat areas during operation by altering the separation of the disk-like surfaces. Previous results show that the simulations of a prototype radial ejector using a variety of RANS turbulence models have not achieved consistently good agreement with the experimental data across the range of ejector operating conditions. The present work describes new simulations of an ARE using Detached Eddy Simulation (DES) in ANSYS FLUENT in conjunction with the DES k-ω SST turbulence model. The influence of varying both the nozzle throat separation (d = 0.39, 0.49 and 0.59 mm) and the duct throat separation (D = 2.3, 2.6, 3.0 and 3.5 mm) on the performance of an ARE is assessed for different operating conditions. The results show that smaller nozzle separations increase the entrainment ratio, but decrease the critical back pressure. Larger duct separations do not always increase the entrainment ratio, but do always yield a lower critical back pressure. |
Keywords | adjustable radial ejector, ejector, CFD ejector performance |
ANZSRC Field of Research 2020 | 401706. Numerical modelling and mechanical characterisation |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | School of Mechanical and Electrical Engineering |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q513z/detached-eddy-simulation-of-an-adjustable-radial-ejector
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