Research Catalog

  • A non-local computational boundary condition for duct acoustics [microform] / William A. Zorumski and Willie R. Watson, Steve L. Hodge.

    • Text
    • Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1994]
    • 1994
  • A finite element propagation model for extracting normal incidence impedance in nonprogressive acoustic wave fields [microform] / Willie R. Watson ... [et al.].

    • Text
    • Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1995]
    • 1995
  • Solution of the three-dimensional Helmholtz equation with nonlocal boundary conditions [microform] / Steve Hodge, William E. Zorumski, and Willie R. Watson.

    • Text
    • Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1995]
    • 1995

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