Laboratoire de Mécanique des Fluides et d'Acoustique, UMR 5509 Centre Acoustique Laboratoire de Mécanique des Fluides et d'Acoustique
UMR 5509
Center for Acoustic Research - LMFA
   Centrale Lyon   LMFA 

Didier Dragna

  • Assistant-Professor, Ecole Centrale de Lyon

Tel. + 33 4 72 18 60 08 | Fax. + 33 4 72 18 91 43 | Email: didier.dragna AT ec-lyon.fr

 

Research topics

  • Sound propagation in the atmosphere
  • Nonlinear propagation
  • Duct acoustics
  • Numerical methods

 

Cursus

  • Engineer of Ecole Centrale de Lyon (2008)
  • Ph.D. Thesis (ECL, 2011)

 

Award

  • Yves Rocard prize of the French Acoustical Society (2015)

 

Publications

  1. Lechat, T., Emmanuelli, A., Dragna, D. & Ollivier, S., 2021, Propagation of spherical weak blast waves over rough periodic surfaces, Shock Waves, 31, 379-398. doi:10.1007/s00193-021-01024-8. pdf download pdf
  2. Julian, R., Dragna, D., Ollivier, S. & Blanc-Benon, P., 2021 Rational approximation of unsteady friction weighting functions in the Laplace domain, J. Hydraul. Eng., 147(9), 04021031, 1-9. doi:10.1061/(ASCE)HY.1943-7900.0001905. pdf download pdf
  3. Alomar, A., Dragna, D. & Galland, M.A., 2021, Time-domain simulations of sound propagation in a flow duct with extended-reacting liners, J. Sound Vib., 507, 116137, 1-24. doi:10.1016/j.jsv.2021.116137 pdf download pdf
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  4. Emmanuelli, A., Dragna, D., Ollivier, S. & Blanc-Benon, P., 2021, Characterization of topographic effects on sonic boom reflection by resolution of the Euler equations, J. Acoust. Soc. Am., 149(4), 2437-2450. doi:10.1121/10.0003816 pdf download pdf
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  5. Deng, Y., Alomar, A., Dragna, D. & Galland, M.A., 2021, Characterization and suppression of the hydrodynamic instability in the time domain for acoustic propagation in a lined flow duct, J. Sound Vib., 500, 115999, 1-22. doi:10.1016/j.jsv.2021.115999 pdf download pdf
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  6. Alomar, A., Dragna, D. & Galland, M.A., 2021, Pole identification method to extract the equivalent fluid characteristics of general sound-absorbing materials, Applied Acoustics, 174, 107752, 1-15. doi:10.1016/j.apacoust.2020.107752. pdf download pdf
  7. Wang, Y., Li, K.M., Dragna, D. & Blanc-Benon, P., 2020, On the sound field from a source moving above non-locally reacting grounds, J. Sound Vib., 464, 114975, 1-20. doi:10.1016/j.jsv.2019.114975. pdf download pdf
  8. Karzova, M.M., Lechat, T., Ollivier, S., Dragna, D., Yuldashev, P.V., Khokhlova, V.A. & Blanc-Benon, P., 2019, Effect of surface roughness on nonlinear reflection of weak shock waves, J. Acoust. Soc. Am., 146(5), EL438-433. doi:10.1121/1.5133737. pdf download pdf mp4  karzova_jasa19b.mp4
  9. Karzova, M.M., Lechat, T., Ollivier, S., Dragna, D., Yuldashev, P.V., Khokhlova, V.A. & Blanc-Benon, P., 2019, Irregular reflection of spark-generated shock pulses from a rigid surface: Mach-Zehnder interferometry measurements in air, J. Acoust. Soc. Am., 145(1), 26-35. doi:10.1121/1.5084266. pdf download pdf
  10. Dragna, D. & Blanc-Benon, P., 2017, Sound propagation over the ground with a random spatially-varying surface admittance, J. Acoust. Soc. Am., 142(4), 2058-2072. doi:10.1121/1.5006180. pdf download pdf
  11. Troian, R., Dragna, D., Bailly, C. & Galland, M.-A., 2017, Broadband liner impedance eduction for multimodal acoustic propagation in the presence of a mean flow, J. Sound Vib., 392, 200-216. doi:10.1016/j.jsv.2016.10.014. pdf download pdf
  12. Dragna, D., Attenborough, K. & Blanc-Benon, P., 2015, On the inadvisability of using single parameter impedance models for representing the acoustical properties of ground surfaces, J. Acoust. Soc. Am., 138(4), 2399-2413. doi:10.1121/1.4931447. pdf download pdf
  13. Dragna, D., Pineau, P. & Blanc-Benon, P., 2015, A generalized recursive convolution method for time-domain propagation in porous media, J. Acoust. Soc. Am., 138(2), 1030-1042. doi:10.1121/1.4927553. pdf download pdf
  14. Hornikx, M. & Dragna, D., 2015, Application of the Fourier pseudospectral time-domain method in orthogonal curvilinear coordinates for near-rigid moderately curved surface, J. Acoust. Soc. Am., 138(1), 425-435. doi:10.1121/1.4922954. pdf download pdf
  15. Dragna, D. & Blanc-Benon, P., 2015, Sound radiation by a moving line source above an impedance plane with frequency-dependent properties, J. Sound Vib., 349, 259-275. doi:10.1016/j.jsv.2015.03.033. pdf download pdf
  16. Dragna, D., Blanc-Benon, P. & Poisson, F., 2014, Modeling of broadband moving sources for time-domain simulations of outdoor sound propagation, AIAA J., 52(9), 1928-1939. doi:10.2514/1.J052672. pdf download pdf
  17. Dragna, D. & Blanc-Benon, P., 2014, Towards realistic simulations of sound radiation by moving sources in outdoor environments, Int. J. Aeroacoustics, 13(5-6), 405-426. doi:10.1260/1475-472X.13.5-6.405. pdf download pdf
  18. Dragna, D. & Blanc-Benon, P., 2014, Physically admissible impedance models for time-domain computations of outdoor sound propagation, Acta Acust. united Ac., 100(3), 401-410. doi:10.3813/AAA.918719. pdf download pdf pdf errata
  19. Dragna, D., Blanc-Benon, P. & Poisson, F., 2014, Impulse propagation over a complex site: A comparison of experimental results and numerical predictions, J. Acoust. Soc. Am., 135(3), 1096-1105. doi:10.1121/1.4864286. pdf download pdf
  20. Jacob, M.C., Dragna, D., Cahuzac, A., Boudet, J. & Blanc-Benon, P., 2014, Toward hybrid CAA with ground effects, Int. J. Aeroacoustics, 13(3-4), 235-260. doi:10.1260/1475-472X.13.3-4.235. pdf download pdf
  21. Dragna, D., Bogey, C., Hornikx, M. & Blanc-Benon, P., 2013, Analysis of the dissipation and dispersion properties of the multi-domain Chebyshev pseudospectral method, J. Comput. Phys., 255, 31-47. doi:10.1016/j.jcp.2013.07.036. pdf download pdf
  22. Dragna, D., Blanc-Benon, P. & Poisson, F., 2013, Time-domain solver in curvilinear coordinates for outdoor sound propagation over complex terrain, J. Acoust. Soc. Am., 133(6), 3751-3763. doi:10.1121/1.4803863. pdf download pdf
  23. Dragna, D., Cotté, B., Blanc-Benon, P. & Poisson, F., 2011, Time-domain simulations of outdoor sound propagation with suitable impedance boundary conditions, AIAA J., 49(7), 1420-1428. doi:10.2514/1.J050636. pdf download pdf
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