Implementation of Ffowcs Williams and Hawkings aeroacoustic analogy in OpenFOAM

• Autorzy: Jarosz K. , Czajka I. , Gołaś A.
• Konferencja: Symposium Vibrations In Physical Systems (27 ; 09-13.05.2016 ; Będlewo koło Poznania ; Polska)
• Języki publikacji: EN

Abstrakty

EN

This paper presents the development of post-processing aeroacoustics utility for OpenFOAM, based on Ffowcs Williams-Hawkings aeroacoustic analogy. Although the FH-W analogy is well known for almost 50 years, there is a lack of open-source software which is using it, hence decision to perform this implementation. This is the veryfirst version of utility, so only one formulation of FH-W were implemented. Presented application allows to compute far-field acoustic pressure from near field CFD solution. Validation is based on NASA Tandem Cylinder Case. Comparison of the results from simulation show fairly good agreement with experimental data.

Słowa kluczowe

EN

aeroacoustics; CFD; FH-W analogy; CAA; OpenFOAM; FVM

PL

aeroakustyka; CFD; analogia FH-W; CAA; OpenFOAM; FVM

• Wydawca: Poznan University of Technology. Institute of Applied Mechanics
• Czasopismo: Vibrations in Physical Systems
• Rocznik: 2016
• Tom: Vol. 27
• Strony: 161--168
• Opis fizyczny: Bibliogr. 11 poz., rys., 1 wykr.

Twórcy

autor

Jarosz K.

• AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Department of Power Systems and Environmental Protection Facilities, Al. Mickiewicza 30, 30-059 Kraków

autor

Czajka I.

• AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Department of Power Systems and Environmental Protection Facilities, Al. Mickiewicza 30, 30-059 Kraków

autor

Gołaś A.

• AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Department of Power Systems and Environmental Protection Facilities, Al. Mickiewicza 30, 30-059 Kraków

Bibliografia

• 1. M. J. Lighthill, On Sound Generated Aerodynamically I. General Theory, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 211(1107) (1952) 564 – 587.
• 2. M. J. Lighthill, On Sound Generated Aerodynamically II. Turbulence as a Source of Sound, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 222(1148) (1954).
• 3. J. E. Ffowcs Williams, D. L. Hawkings, Sound generation by turbulence and surfaces in arbitrary motion, Proc. R. Soc. Lond. A, 264 (1969) 321 – 342.
• 4. I. E Garrick, E. W. Watkins, A Theoretical Study of the Effect of Forward speed on the Free Space Sound Pressure Field Around Helicopters, Tech. Rep. TR-1198, NACA, 1954.
• 5. F. Farassant, Derivation of Formulation 1 and 1A of Farassant, Tech. Rep. TM-2007-214853, NASA, 2007.
• 6. K S. Brentner, F.Farassant, Modeling aerodynamically generated sound of helicopter rotors, Prog. Aerospace Sci., 39 (2003) 83 – 120.
• 7. D. C. Wilocox, Turbulence Modeling for CFD, 2006.
• 8. D. P. Lockard, M. M Choudhari, M. R Khorrami, D. H Neuhart, F. V. Hutcheson, T. F Brooks, D. J. Stead, Aeroacoustic Simulations of Tandem Cylinders with Subcritical Spacing, AIAA-2008-2862, 2008.
• 9. P. R. Spalart, S. R. Allmaras, A One-Equation Turbulence Model for Aerodynamic Flows, AIAA Paper 92-0439, 1992.
• 10. I. Czajka, K. Jarosz, K. Suder-Dębska, Modelling of an aerodynamic noise of a horizontal axis wind turbine using ANSYS/Fluent and OpenFOAM packages, 7th forum acusticum 2014, Kraków 7-12.09.2014.
• 11. M. Pluta, B. Borkowski, I. Czajka, K. Suder-Dębska, Sound synthesis using physical modeling on heterogeneous computing platforms, Acta Physica Polonica. A, 128 (2015).

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.