2011
DOI: 10.1121/1.3569706
|View full text |Cite
|
Sign up to set email alerts
|

Comparison of sound power radiation from isolated airfoils and cascades in a turbulent flow

Abstract: An analytical model of the sound power radiated from a flat plate airfoil of infinite span in a 2D turbulent flow is presented. The effects of stagger angle on the radiated sound power are included so that the sound power radiated upstream and downstream relative to the fan axis can be predicted. Closed-form asymptotic expressions, valid at low and high frequencies, are provided for the upstream, downstream, and total sound power. A study of the effects of chord length on the total sound power at all reduced f… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

3
25
0

Year Published

2015
2015
2022
2022

Publication Types

Select...
5
2
1

Relationship

0
8

Authors

Journals

citations
Cited by 40 publications
(28 citation statements)
references
References 12 publications
3
25
0
Order By: Relevance
“…Results are compared with the flat plate analytical model developed by Amiet, 15 and adapted by Blandeau et al 38 for two-dimensional noise radiation. As in the analytical model, the background mean flow is assumed to be uniform in the CAA domain.…”
Section: Va2 Validation Case: Two-dimensional Naca 0001 Airfoilmentioning
confidence: 99%
“…Results are compared with the flat plate analytical model developed by Amiet, 15 and adapted by Blandeau et al 38 for two-dimensional noise radiation. As in the analytical model, the background mean flow is assumed to be uniform in the CAA domain.…”
Section: Va2 Validation Case: Two-dimensional Naca 0001 Airfoilmentioning
confidence: 99%
“…4. Comparison of the present results with Amiet's theoretical prediction [24,29] and existing experimental data. discrepancies were attributed to the fact that the current velocity spectra were not entirely smooth as those in the counterpart theory and experiment.…”
Section: Discussionmentioning
confidence: 51%
“…4) for both the SLE and WLE cases are plotted in Fig. 10 where a theoretical prediction by Amiet et al [24,28,29] and an experimental measurement performed at the University of Southampton are also included for comparison. It should be noted that the experimental result includes a shear-layer correction and has been scaled up by (r exp /L c ) 2 /(r sim /L c ) to match the distance to the observer position and to compensate the 3D decaying rate (p 3D ∝ r & p 2D ∝ √ r).…”
Section: Application To Aerofoil-turbulence Interaction Noisementioning
confidence: 99%
See 1 more Smart Citation
“…(11). The acoustic power spectrum, P(ω), can be computed using the following integral formula (Blandeau et al, 2011):…”
Section: Turbulent Inflow Boundary Conditionmentioning
confidence: 99%