FSUMATH

Christopher Tam's Faculty Page


Christopher Tam
Back to Faculty Page
Robert O. Lawton Distinguished Professor
Ph.D., Caltech, USA, 1966

Detailed description of research

Research Interests

Computational Mathematics and Mathematics of Computation Computational Aeroacoustics and Large Scale Simulation Jet and Aircraft Noise Combustion Noise Aeroacoustics of Liners Hydrodynamic Stability, Transition and Turbulence

Education

B. Eng., McGill University, Canada M. Sc. and Ph. D., California Institute of Technology

Professional Affiliations

  • Fellow, the American Institute of Aeronautics and Astronautics (AIAA)
  • Fellow, the American Physical Society (APS)
  • Fellow, the Acoustical Society of America (ASA)
  • Member, the Society of Industrial and Applied Mathematics (SIAM)

Honors and Awards

  • AIAA Space Shuttle Flag Plaque Award (The American Institute of Aeronautics and Astronautics), 1984
  • AIAA Aeroacoustics Award (The American Institute of Aeronautics and Astronautics), 1987
  • Florida State University Distinguished Research Professor Award, 1991
  • Arnold Engineering Development Center Technical Achievement Award, 1993
  • AEDC Annual Technology Achievement Award, 1993
  • Florida State University Professorial Excellence Award, 1997
  • NASA 2001 TGIR Award (Turning Goals into Reality), 2001
  • AIAA Pendray Aerospace Sciences Literature Award, 2006

Media

Movie
Jet Screech
Numerical simulation of axisymmetric and flapping mode screech tone generation by a supersonic jet.
Movie
Airfoil
Numerical simulation of trailing edge tone generation by an NACA0012 airfoil at large angle of attack.
Movie
Cascade Simulation
A cascade simulation of rotor-stator waking cutting interaction and tones.

Publications

Book Cover
Computational Aeroacoustics: A Wave Number Approach
Published by the Cambridge University Press, 2012.


Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer posuere erat a ante.

Christopher Tam
Journal Articles (for publications before 1990, please contact Dr. Tam)
  1. Theoretical model of discrete tone generation by impinging jets (Tam, C.K.W. and Ahuja, K.K.), Journal of Fluid Mechanics, 214, 67.87, 1990.
  2. Broadband shock associated noise of moderately imperfectly expanded supersonic jets, (Tam, C.K.W.) Journal of Sound and Vibration, 140, 55.71, 1990.
  3. Jet noise generated by large scale coherent motion, (Tam, C.K.W.) Chapter 6 in Aeroacoustics of Flight Vehicles: Theory and Practice, volume 1, NASA RP.4258, 1991.
  4. Resonant instability of ducted free supersonic mixing layers induced by periodic Mach waves (Tam, C.K.W. and Hu, F.Q.), Journal of Fluid Mechanics, 229, 65.89, 1991.
  5. Parametric instability of supersonic shear layers induced by periodic Mach waves (Hu, F.Q. and Tam, C.K.W.), Physics of Fluids A, 3, 1645.1656, 1991.
  6. Broadband shock associated noise from supersonic jets in flight. (Tam, C.K.W.), Journal of Sound and Vibration 151, 131.147, 1991.
  7. Impingement tones of large aspect ratio supersonic rectangular jets (Tam, C.K.W. and Norum, T.D.), American Institute of Aeronautics and Astronautics Journal, 30, 304.311, 1992.
  8. Discretization errors inherent in finite difference solution of propeller noise problems. (Tam, C.K.W.) American Institute of Aeronautics and Astronautics Journal, 30, 608.615, 1992.
  9. Relationship between instability waves and noise of high-speed jets (Tam, C.K.W., Chen, P. and Seiner, J.M.). American Institute of Aeronautics and Astronautics Journal, 30, 1747.1752, 1992.
  10. Broadband shock associated noise from supersonic jets measured by a ground observer, (Tam, C.K.W.) AIAA Journal, 30, 2395.2401, 1992.
  11. Instability of rectangular jets (Tam, C.K.W. and Thies, A.T.), Journal of Fluid Mechanics, 248, 425.448, 1993.
  12. A study of the short wave components in computational acoustics (Tam, C.K.W., Webb, J.C. and Dong, Z.), Journal of Computational Acoustics, 1, 1.30, 1993.
  13. Dispersion-Relation-Preserving finite difference scheme for computational acoustics (Tam, C.K.W. and Webb, J.C.), Journal of Computational Physics, 107, 262.281, 1993.
  14. Screech tones from free and ducted supersonic jets (Tam, C.K.W., Ahuja, K.K. and Jones, R.R.). American Institute of Aeronautics and Astronautics Journal, 32, 917.922, 1994.
  15. Radiation boundary condition and anisotrophy correction for finite difference solutions of the Helmholtz equation (Tam, C.K.W. and Webb, J.C.). Journal of Computational Physics, 113, 122.133, 1994.
  16. Wall boundary conditions for high order finite difference schemes in computational aeroacoustics (Tam, C.K.W. and Dong, Z.). Journal of Theoretical and Computational Fluid Dynamics, 6, issue 5-6, 303.322, 1994.
  17. Turbulent mixing noise from supersonic jets (Tam, C.K.W. and Chen, P.), AIAA Journal, 32, 1774.1780, 1994.
  18. Supersonic jet noise, (Tam, C.K.W.) Annual Review of Fluid Mech., 27, 17.43, 1995.
  19. Computational Aeroacoustics: Issues and Methods, (Tam, C.K.W.) AIAA Journal, 33, 1788.1796, 1995.
  20. Computation of turbulent axisymmetric and nonaxisymmetric jet flows using the k . . model (Tam, C.K.W. and Thies, A.T.), AIAA Journal, 34, 309.316, 1996.
  21. Radiation and outflow boundary conditions for direct computation of acoustic and flow disturbances in a nonuniform mean flow (Tam, C.K.W. and Dong, Z.), Journal of Computational Acoustics, 4, 175.202, 1996.
  22. A prediction method for broadband shock associated noise from supersonic rectangular jets (Tam, C.K.W. and Reddy, N.N.), Journal of Aircrafts, 33, 298.303, 1996.
  23. Time-domain impedance boundary conditions for computational aeroacoustics (Tam, C.K.W. and Auriault, L.), AIAA Journal, 34, 917.923, 1996.
  24. Cartesian boundary treatment of curved walls for high-order computational aeroacoustics schemes (Tam, C.K.W. and Kurbatskii, K.A.), AIAA Journal, 35, 133.140, 1997.
  25. Screech tones of supersonic jets from bevelled rectangular nozzles (Tam, C.K.W., Shen, H. and Raman, G.), AIAA Journal, 35. 1119.1125, 1997.
  26. Jet noise: Since 1952, (Tam, C.K.W.) Theoretical and Computational Fluid Dynamics, 10, 393.405, 1998.
  27. Nonhomogeneous radiation and outflow boundary conditions simulating incoming acoustic and vorticity waves for exterior computational aeroacoustics problems (Tam, C.K.W., Fang, J. and Kurbatskii, K.A.), International Journal for Numerical Methods in Fluids, 26, 1107.1123, 1998.
  28. Influence of nozzle geometry on the noise of high-speed jets, (Tam, C.K.W.) AIAA Journal, 36, 1396.1400, 1998.
  29. Perfectly matched layer as an absorbing boundary condition for the linearized Euler equations in open and ducted domains (Tam, C.K.W., Auriault, L. and Cambuli, F.), Journal of Computational Physics, 144, 213.234, 1998.
  30. Mean flow refraction effects on sound radiated from localized sources in a jet (Tam, C.K.W. and Auriault, L.), Journal of Fluid Mechanics, 370, 149.174, 1998.
  31. The wave modes in ducted swirling flows (Tam, C.K.W. and Auriault, L.), Journal of Fluid Mechanics, 371, 1.20, 1998.
  32. Numerical simulation of the generation of axisymmetric mode jet screech tones (Tam, C.K.W. and Shen, H.), AIAA Journal, 36, 1801.1807, 1998.
  33. Advances in numerical boundary conditions for computational aeroacoustics, (Tam, C.K.W.) Journal of Computational Acoustics, 6, 377.402, 1998.
  34. Jet mixing noise from fine scale turbulence (Tam, C.K.W. and Auriault, L.), AIAA Journal, 37, 145.153, 1999.
  35. A wavenumber based extrapolation and interpolation method for use in conjunction with high-order finite difference schemes (Tam, C.K.W. and Kurbatskii, K.A.), Journal of Computational Physics, 157, 588.617, 2000.
  36. Subsonic jet noise from non-axisymmetric and tabbed nozzles (Tam, C.K.W. and Zaman, K.B.M.Q.), AIAA Journal, 38, 592.599, 2000.
  37. Effects of jet temperature and nozzle-lip thickness on screech tones (Tam, C.K.W. and Shen, H.), AIAA Journal, 38, 762.767, 2000.
  38. Microfluid dynamics and acoustics of resonant liners (Tam, C.K.W. and Kurbatskii, K.A.), AIAA Journal, 38, 1331.1339, 2000.
  39. The effects of forward flight on jet mixing noise from fine scale turbulence (Tam, C.K.W., Pastouchenko, N.N. and Auriault, L.), AIAA Journal, 39, 1261.1269, 2001.
  40. A numerical and experimental investigation of the dissipation mechanisms of resonant acoustic liners (Tam, C.K.W., Kurbatskii, K.A., Ahuja, K.K. and Gaeta, R.J.), Journal of Sound and Vibration, 245, 545.557, 2001.
  41. Gap tones (Tam, C.K.W. and Pastouchenko, N.N.), AIAA Journal, 39, 1442.1448, 2001.
  42. Three-dimensional numerical simulation of the screech phenomenon (Tam, C.K.W. and Shen, H.), AIAA Journal, 40, No. 1, 33.41, 2002.
  43. Noise from fine-scale turbulence of nonaxisymmetric jets (Tam, C.K.W.and Pastouchenko, N.N.), AIAA Journal, Vol. 40, No. 2, 456.464, 2002.
  44. Computational aeroacoustics examples showing the failure of the acoustic analogy theory to identify the correct noise sources, (Tam, C.K.W.) Journal of Computational Acoustics, Vol. 10, No. 4, 387.405, 2002.
  45. Multi-size-mesh multi-time-step Dispersion-Relation-Preserving scheme for multiple scales aeroacoustics problems (Tam, C.K.W. and Kurbatskii, K.A.), International Journal of Computational Fluid Dynamics, 17 (2), 119.132, 2003.
  46. Modified k....turbulence model for calculating hot jet mean flows and noise (Tam, C.K.W. and Ganesan, A.), AIAA Journal, 42 (1), 26.34, 2004.
  47. Computational aeroacoustics: An overview of computational challenges and applications, (Tam, C.K.W.) International Journal of Computational Fluid Dynamics, 18 (6), 547.567, 2004.
  48. A computational and experimental study of slit resonators (Tam, C.K.W., Ju, H., Jones, M.G., Watson, W.R. and Parrot, T.L.), Journal of Sound and Vibration, 284 (3-5), 947-984, 2005.
  49. Fine scale turbulence noise from hot jets (Tam, C.K.W., Pastouchenko, N.N. and Vishwanathan, K.), AIAA Journal, 43 (8), 1675-1683, 2005.
  50. Fine-scale turbulence noise from dual stream jets (Tam, C.K.W. and Pastouchenko, N.N.) AIAA Journal, 44 (1), 90-101, 2006.
  51. On the two sources of supersonic jet noise (Tam, C.K.W., Pastouchenko, N.N. and Schlinker, R.H.), Journal of Sound and Vibration 291 (1-2), 192-201, 2006.
  52. Dimensional analysis of jet noise data, (Tam, C.K.W.) AIAA Journal, 44 (3), 512-522, 2006.
  53. Recent advances in computational aeroacoustics, (Tam, C.K.W.) Fluid Dynamics Research, 38 (9), 591-615, 2006.
  54. Installation effects on the flow and noise of an under-the-wing mounted dual stream jet (Tam, C.K.W. and Pastouchenko, N.N.), AIAA Journal, 45 (12), 2851-2860, 2007.
  55. Scattering of acoustic duct modes by axial liner splices (Tam, C.K.W., Ju, H. and Chien, E.W.), Journal of Sound and Vibration 310 (4-5), 1014-1035, 2008.
  56. Numerical simulation of a slit resonator in a grazing flow under acoustic excitation (Tam, C.K.W., Ju, H. and Walker, B.E.), Journal of Sound and Vibration, 313 (3-5), 449-471, 2008 .
  57. The sources of jet noise: experimental evidence (Tam, C.K.W., Viswanathan, K., Ahuja, K.K. and Panda, J.), Journal of Fluid Mechanics, 615, (Nov), 253-292, 2008.
  58. Computation of shock cell structure of dual stream jets for noise prediction (Tam, C.K.W. and Viswanathan, K.), AIAA Journal, 46, No. 11, 2857-2867, 2008.
  59. Broadband Shock-Cell Noise from Dual Stream Jets (Tam, C.K.W., Pastouchenko, N.N. and Viswanathan, K.) Journal of Sound and Vibration, 324, 861-891, 2009.
  60. FiniteDifference Computation of Acoustic Scattering by Small Surface Inhomogeneities and Discontinuities (Tam, C.K.W. and Ju, H.) Journal of Computational Physics, 228, 5917-5932, 2009.
  61. Mach Wave Radiation from High-Speed Jets, (Tam, C.K.W.) AIAA Journal, 47, No. 10, 2440-2448, 2009.
  62. A Computational and Experimental Study of Resonators in Three Dimensions (Tam,C.K.W., Ju, H., Jones,M.G., Watson, W.R. and Parrott, T.L.) Journal of Sound and Vibration, 329, 5164-5193, 2010.
  63. Airfoil Tones at Moderate Reynolds Number (Tam, C.K.W. and Ju, H.) Journal of Fluid Mechanics, 690, 536-570, 2012.
  64. An Improved Multi-pole Broadband Time Domain Impedance Boundary Condition (Li, X.Y., Li, X.D. and Tam, C.K.W.) AIAA Journal, 50, No. 4, 980-984, 2012.
  65. Indirect Combustion Noise of Auxiliary Power Units (Tam, C.K.W., Parrish, S.A., Xu, J. and Schuster, B.) Journal of Sound and Vibration, 332, 4004-4020, 2013.
  66. Physical Processes Influencing Acoustic Radiation from Jet Engine Inlets (Tam, C.K.W., Parrish, S.A., Envia, E and Chien, E.W.) Journal of Fluid Mechanics, 725, 152-194, 2013.
  67. Harmonics of Jet Screech Tones (Tam, C.K.W., Parrish, S.A. and Viswanathan, K.) AIAA Journal, accepted for publication, to appear 2014.
  68. Experimental Validation of Numerical Simulation for an Acoustic Liner in Grazing Flow: Self-Noise and Added Drag, (Tam, C.K.W., Pastouchenko, N.N., Jones, M.G. and Watson, W.R.) Journal of Sound and Vibration, accepted for publication, to appear 2014.

Editorship, Conference Proceedings

Hardin, J.C. and Tam, C.K.W. ICASE/LaRC Workshop on Benckmark Problems in Computational Aeroacoustics, NASA CP 3300, May 1995
Tam, C.K.W. and Hardin, J.C. Second Computational Aeroacoustics (CAA) Workshop on Benchmark Problems, NASA CP 3352, June 1997
To be updated.