Large-Eddy Simulation of the Aerodynamic and Aeroacoustic Performance of a Ventilation Fan
Joint Authors
Corsini, Alessandro
Bianchi, Stefano
Rispoli, Franco
Sheard, Anthony G.
Borello, Domenico
Source
Advances in Acoustics and Vibration
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-03-27
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
There are controversial requirements involved in developing numerical methodologies in order to compute the flow in industrial fans.
The full resolution of turbulence spectrum in such high-Reynolds number flow configurations entails unreasonably expensive computational costs.
The authors applied the study to a large unidirectional axial flow fan unit for tunnel ventilation to operate in the forward direction under ambient conditions.
This delivered cooling air to the tunnel under routine operation, or hot gases at 400∘C under emergency conditions in the event of a tunnel fire.
The simulations were carried out using the open source code OpenFOAM, within which they implemented a very large eddy simulation (VLES) based on one-equation SGS model to solve a transport equation for the modelled (subgrid) turbulent kinetic energy.
This subgrid turbulence model improvement is a remedial strategy in VLES of high-Reynolds number industrial flows which are able to tackle the turbulence spectrum’s well-known insufficient resolution.
The VLES of the industrial fan permits detecting the unsteady topology of the rotor flow.
This paper explores the evolution of secondary flow phenomena and speculates on its influence on the actual load capability when operating at peak-pressure condition.
Predicted noise emissions, in terms of sound pressure level spectra, are also compared with experimental results and found to agree within the uncertainty of the measurements.
American Psychological Association (APA)
Bianchi, Stefano& Borello, Domenico& Corsini, Alessandro& Rispoli, Franco& Sheard, Anthony G.. 2013. Large-Eddy Simulation of the Aerodynamic and Aeroacoustic Performance of a Ventilation Fan. Advances in Acoustics and Vibration،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-505532
Modern Language Association (MLA)
Bianchi, Stefano…[et al.]. Large-Eddy Simulation of the Aerodynamic and Aeroacoustic Performance of a Ventilation Fan. Advances in Acoustics and Vibration No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-505532
American Medical Association (AMA)
Bianchi, Stefano& Borello, Domenico& Corsini, Alessandro& Rispoli, Franco& Sheard, Anthony G.. Large-Eddy Simulation of the Aerodynamic and Aeroacoustic Performance of a Ventilation Fan. Advances in Acoustics and Vibration. 2013. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-505532
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-505532