Welcome to the Kids' Library!

Evaluation of the feasibility of scale modeling to quantify wind and terrain effects on low-angle so

Cambridge, MA : Bolt, Beranek and Newman, Inc. ; Hampton, VA : National Aeronautics and Space Administration, Langley Research Center, [1985] 1985

Low-frequency sound propagation modeling over a locally-reacting boundary using the parabolic approx

Robertson, J. S.
Troy, N.Y. : Department of Mathematical Sciences, Rensselaer Polytechnic Institute ; Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center, [1989] 1989

Time-dependent parabolic finite difference formulation for harmonic sound propagation in a two-dimen

Baumeister, Kenneth J., author.
Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center, November 1996. 1996-

Turbofan aft duct suppressor study

Syed, A. A., author.
Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center, [1983] 1983

Turbofan aft duct suppressor study contractor's data report of mode probe signal data

[Cleveland, Ohio] : National Aeronautics and Space Administration, Lewis Research Center, [1983?] 1983