Computational Aeroacoustics — Present Status and Future Promise

  • J. C. Hardin
  • S. L. Lamkin
Conference paper
Part of the IUTAM Symposia book series (IUTAM)


The field of computational aeroacoustics (CAA), in which sound generation by unsteady flows is calculated from first principles, has recently emerged as a viable discipline. This paper describes one CAA technique which has been validated for low Mach number, low Reynolds number, two-dimensional flows. Results of its application to geometries producing both dipole and quadrupole type sound sources are presented along with theoretical and experimental comparisons. In addition, the future promise of this and other CAA techniques in removing the present limitations is evaluated.


Reynolds Number Computational Fluid Dynamic Acoustic Radiation Sound Radiation Vorticity Contour 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. 1.
    Crow, S. C.: Aerodynamic Sound Emission as a Singular Perturbation Problem, Stud. App. Math., Vol. XLIX, No. 1, pp. 21–44, 1970.Google Scholar
  2. 2.
    Powell, A.: Theory of Vortex Sound, Jour. Acous. Soc. Am., Vol. 36, No. 1, pp. 177–195, 1964.ADSCrossRefGoogle Scholar
  3. 3.
    Howe, M. S.: Contributions to the Theory of Aerodynamic Sound, with Application to Excess Jet Noise and the Theory of the Flute, JFM, Vol. 71, Pt. 4, pp. 625–673, 1975.MathSciNetADSMATHCrossRefGoogle Scholar
  4. 4.
    Hardin, J. C. and Lamkin, S. L.: Aeroacoustic Computation of Cylinder Wake Flow, AIAA Jour., Vol. 22, No. 1, pp. 51–57, 1984.ADSMATHCrossRefGoogle Scholar
  5. 5.
    Hardin, J. C. and Lamkin, S. L.: Aeroacoustic Interaction of a Distributed Vortex with a Lifting Joukowski Airfoil, AIAA Paper No. 84–2287, 1984.Google Scholar
  6. 6.
    Lamkin, S. L. and Hardin, J. C.: Aeroacoustic Computation from Vortex-Pair Merging, SIAM 1983 Fall Meeting, Norfolk, Virginia, 1983.Google Scholar

Copyright information

© Springer, Berlin Heidelberg 1986

Authors and Affiliations

  • J. C. Hardin
    • 1
  • S. L. Lamkin
    • 2
  1. 1.NASA Langley Research CenterHamptonUSA
  2. 2.Kentron InternationalHamptonUSA

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