[Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: year 4, Issue 1 (Journal of Acoustical Engineering Society of Iran 2016) ::
مجله علمی پژوهشی انجمن مهندسی صوتیات ایران 2016, 4(1): 43-53 Back to browse issues page
Numerical investigation of flat plate trailing edge configuration effects on the flow behavior using large eddy simulation approach
H. Mohammadi , M. Ramezanizadeh *
Abstract:   (714 Views)

In this research, the sound produced due to vortices interactions of unsteady flow over three different flat plates having various leading and trailing edges configurations, is investigated applying large eddy simulation approach. Validation of the simulated non-dimensional velocity at Mach number of 0.088 and Reynolds number of 4×105 is performed using available experimental results which showed good agreements. Also, considering the acoustic simulations, power spectral density of the sound received through two microphones (one located at 583 mm  directly  above and the other one located 583 mm directly below the trailing edge of the plate) showed good agreement with the experimental results. Based on the obtained results, values of sound power spectral density related to the first, second and third plates in the frequency range of 200 to 4000 Hz are approximately, 26 to 28, 27 to 32 and 28 to 57 dB, respectively.

Keywords: Aeroacoustic, Flat plate, Trailing edge vortex shedding, Large eddy simulation approach, Power spectral density.
Full-Text [PDF 324 kb]   (22 Downloads)    
Type of Study: Research |
Received: 2016/03/17 | Accepted: 2016/09/10 | Published: 2016/09/10
References
1. F.V. Hutcheson, T.F. Brooks, “Noise Radiation from single and multiple rod configurations,” 12th AIAA/CEAS Aeroacoustics Conference (27th AIAA Aeroacoustics Conference), Aeroacoustics Conferences, 2006.
2. C.A. Wagner, T. Huttl, P. Saguat, “Large Eddy Simulation for Acoustic,” Cambridge Aerospace Series, 2007.
3. D. Moreau, L. Brooks, C.J. Doolan, “On the aeroacoustic tonal noise generation mechanism of a sharp-edged plate,” Journal of Aeroacoustic Society of America, vol. 129, no. 4, pp.154-160, 2011.
4. M. Roger, S. Moreau, “Broadband self-noise from loaded fan blades,” American Institute of Aeronautics and Astronautics AIAA Journal. vol. 42, no. 3, p.536-544, 2004.
5. M. Wang, S. Moreau, G. Iaccarino, M. Roger, “LES prediction of wall-pressure fluctuations and noise of a low-speed airfoil,” Internatoinal Journal of Aeroacoustic, vol. 8, no. 3, pp.177-198, 2009.
6. A. Eltaweel, M. Wang, “Numerical simulation of broadband noise from airfoil wake interaction,” 17th AIAA/CEAS Aeroacoustics Conference (32th AIAA Aeroacoustics Conference), Aeroacoustics Conferences, Portland, Oregon, 2011.
7. D.J. Moreau, C.J. Doolan, “Tonal noise production from a wall-mounted finite airfoil,” Journal of Sound and Vibration, vol. 363, pp. 199-244, 2016
8. P. Croaker, N. Kessissoglou, M. Karimi, C.J. Doolan, L. Chen, “Self noise prediction of flat plate using a hybrid RANS-BEM technique,” Inter-noise 2014, 2014.
9. M. Ramezanizadeh, “Comprative Study of Large Eddy Simulation of Film Cooling Using Different Kind of Subgrid Scales” PhD Thesis, Dissertation submitted to the Department of Sharif University of Technology Mechanical Engineering Faculty, 2006, (In Persian).
10. M. Taiebi-Rahni, M. Ramezanizadeh, M.R. Keimasi, “Three-dimensional turbulent Incompressible film cooling simulation using les and rans approaches” Aerospace Mechanics Journal, vol. 1, no. 3, pp. 11-20, 2006, (In Persian).
11. R. Farhadiazar, M. Ramezanizadeh, M. Taeibi-Rahni, M. Salimi, “Compound triple jets film cooling improvements via velocity and density ratios: Large eddy simulation,” Journal of Fluids Engineering, vol. 133, no. 3, 2011.
12. M. Taeibi-Rahani, M. Ramezanizadeh, D. Ganji, A. Darvan, S. Soleimani, E. Ghasemi, H. Bararnia, “Comprative study of large eddy simulation of film cooling using a dynamic global-coefficient subgrid scale eddy-viscosity model with rans and smagorinsky modeling,” International Downloaded from joasi.ir at 14:58 +0430 on Sunday June 17th 2018 53Communications In Heat and Mass Transfer, vol. 38, pp.559-667, 2011.
13. J.E. Ffowcs Williams, D.L. Hawkings, “Sound generation by turbulence and surface in arbitrary motion,” Philosophical Transaction of The Royal Society of London, Series A, Mathematical and Physical Sciences, vol. 264, no. 1151, pp. 321-342, 1969.
14. R. William, Wolf , K.L. Sanjiva, “Trailing edge noise prediction using compressible les and acoustic analogy,” American Institute of Aeronautics and Astronautics AIAA Journal, 2011-2784, 2011.
15. D.J. Moreau, L.A. Brooks, C.J. Doolan, “The effect of boundary layer noise on trailing edge noise from sharp-edged flat plate at low-to-moderate reynolds number,” Journal of Sound and Vibration, vol. 331, pp. 3976-3988, 2012.
16. M. Ramezanizadeh, A. Mohammadi, “Numerical investigation of delta wing leading edge effect on the flow using large eddy simulation approach,” Aerospace Mechanics Journal, vol. 3, no. 3, pp. 49-60, 2016, (In Persian).
17. A. Mohammadi, M. Ramezanizadeh, “Numerical investigation of aeroacoustic behavior of flow over tandem cylinders applying large eddy simulation approach,” Journal of Acoustical Engineering Society of Iran, vol. 2, no. 2, 2015, (In Persian).
Send email to the article author

Add your comments about this article
Your username or Email:

Write the security code in the box >


XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Mohammadi H, Ramezanizadeh M. Numerical investigation of flat plate trailing edge configuration effects on the flow behavior using large eddy simulation approach. مجله علمی پژوهشی انجمن مهندسی صوتیات ایران. 2016; 4 (1) :43-53
URL: http://joasi.ir/article-1-90-en.html


year 4, Issue 1 (Journal of Acoustical Engineering Society of Iran 2016) Back to browse issues page
مجله علمی-پژوهشی انجمن lمهندسی صوتیات ایران Journal of Acoustical Engineering Society of Iran
Persian site map - English site map - Created in 0.07 seconds with 30 queries by YEKTAWEB 3705