Research Catalog
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Displaying 1-32 of 32 results
Computation of helicopter rotor acoustics in forward flight [microform] / Roger Strawn, Rupak Biswas.
- Text
- [Moffett Field, Calif.] : Research Institute for Advanced Computer Science, NASA Ames Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1994]
- 1994
Investigation of the arcjet plume near field using electrostatic probes [microform] / John M. Sankovic.
- Text
- [Washington, DC] : National Aeronautics and Space Administration ; [Springfield, Va. : National Technical Information Service, distributor, 1990]
- 1990
Ducted fan acoustic radiation including the effects of nonuniform mean flow and acoustic treatment [microform] / Walter Eversman, Indranil Danda Roy.
- Text
- Rolla, Mo. : Dept. of Mechanical and Aerospace Engineering and Engineering Mechanics, Univ. of Missouri-Rolla ; [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1993]
- 1993
Asymptotic behavior of a flat plate wake [microform] / by James H. Weygandt and Rabindra D. Mehta.
- Text
- Moffett Field, Calif. : National Aeronautics and Space Administration, Ames Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1989]
- 1989
Helicopter main-rotor speed effects on far-field acoustic levels [microform] / Arnold W. Mueller, Otis S. Childress, and Mark Hardesty.
- Text
- Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center, [Springfield, Va. ; National Technical Information Service, distributor, 1987]
- 1987
Development and demonstration of an on-board mission planner for helicopters [microform] / Owen L. Deutsch, Mikund Desai.
- Text
- Moffett Field, Calif. : National Aeronautics and Space Administration, Ames Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1988]
- 1988
Method and apparatus for phasing segmented mirror arrays [microform] / inventor, Paul K. Manhart.
- Text
- [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1991]
- 1991
Numerical studies of boundary-layer receptivity [microform] : a progress report / submitted by Helen L. Reed.
- Text
- [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1995]
- 1995
NSTAR ion thruster plume impacts assessments [microform] / Roger M. Myers ... [et al.].
- Text
- [Washington, D.C.] : National Aeronautics and Space Administration ; [Springfield, Va. : National Technical Information Service, distributor, 1995]
- 1995
Computation of noise radiation from turbofans [microform] : a parametric study / M. Nallasamy.
- Text
- [Washington, D.C.?] : National Aeronautics and Space Administration ; [Springfield, Va. : National Technical Information Service, distributor, 1995]
- 1995
A far-field non-reflecting boundary condition for two-dimensional wake flows [microform] / Jeffrey S. Danowitz, Saul A. [i.e. S.] Abarbanel, Eli Turkel.
- Text
- Hampton, VA : Institute for Computer Applications in Science and Engineering, NASA Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1995]
- 1995
An assessment of propeller aircraft noise reduction technology [microform] / F. Bruce Metzger.
- Text
- Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1995]
- 1995
Potential theoretic methods for far field sound radiation calculations [microform] / S.I. Hariharan ... [et al.].
- Text
- Cleveland, Ohio : NASA, Lewis Research Center, ICOMP ; [Springfield, Va. : National Technical Information Service, distributor, 1995]
- 1995
New computational methods for the prediction and analysis of helicopter noise [microform] / Roger C. Strawn, Leonid Oliker, Rupak Biswas.
- Text
- [Moffett Field, Calif.] : Research Institute for Advanced Computer Science, NASA Ames Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1996]
- 1996
Fan noise prediction system development [microform] : source/radiation field coupling and workstation conversion for the acoustic radiation code / H.D. Meyer.
- Text
- [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1993]
- 1993
Improved finite element modeling of the turbofan engine inlet radiation problem [microform] / Indranil Danda Roy and Walter Eversman, H.D. Meyer.
- Text
- [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1993]
- 1993
Azimuthal patterns of the radiated sound field from a turbofan model [microform] / R.H. Thomas ... [et al.].
- Text
- Reston, VA : American Institute of Aeronautics and Astronautics ; [Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1997]
- 1997
Low speed, 2-D rotor/stator active noise control at the source demonstration [microform] : under contract NAS3-26618 / John C. Simonich ... [et al.].
- Text
- [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1997]
- 1997
Refraction of sound emitted near solid boundaries from a sheared jet [microform] / Loren H. Dill and Ayo A. Oyediran, Eugene A. Krejsa.
- Text
- [Cleveland, Ohio] : National Aeronautics and Space Administration, Lewis Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1998]
- 1998
The use of Kirchhoff's method in jet aeroacoustics [microform] : final report, NASA/NAG 1-1605 (3/1/94-9/15/94) / principal investigator, Anastasios S. Lyrintzis.
- Text
- [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1995]
- 1995
Development of a linearized unsteady Euler analysis with application to wake/blade-row interactions [microform] / Joseph M. Verdon, Matthew D. Montgomery, and H. Andrew Chuang.
- Text
- [Cleveland, Ohio] : National Aeronautics and Space Administration, Glenn Research Center ; [Springfield, Va. : National Technical Information Service, distributor, 1999]
- 1999
Wave propagation in anisotropic medium due to an oscillatory point source with application to unidirectional composites [microform] / James H. Williams, Jr., Elizabeth R. C. Marques, and Samson S. Lee.
- Text
- [Washington, D.C.] : National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1986.
- 1986
- 1 Resource
Available Online
http://purl.access.gpo.gov/GPO/LPS58918A novel method of calculating far-field patterns of large aperture antennas [microform] / M. C. Bailey.
- Text
- Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center, [1986]
- 1986
Near field to far field transformations and multiple beam forming and steering [microform] : final report / prepared by Novar Electronics Corporation.
- Text
- [Houston, Tex.] : National Aeronautics and Space Administration, Lyndon B. Johnson Space Center, [1984]
- 1984
The effects of crack surface friction and roughness on crack tip stress fields [microform] / Roberto Ballarini and Michael E. Plesha.
- Text
- Cleveland, Ohio : National Aeronautics and Space Administration, Lewis Research Center, [1987]
- 1987
- 1 Resource
Available Online
http://purl.access.gpo.gov/GPO/LPS92496Prediction of far field noise from wind energy farms / Kevin P. Shepherd and Harvey H. Hubbard.
- Text
- Hampton, Va. : Bionetics Corporation : National Aeronautics and Space Administration, Langley Research Center, [1986]
- 1986
Prediction of far field noise from wind energy farms / Kevin P. Shepherd and Harvey H. Hubbard.
- Text
- Hampton, Virginia : Bionetics Corporation : National Aeronautics and Space Administration, Langley Research Center, 1986.
- 1986
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo34892The effect of bypass nozzle exit area on fan aerodynamic performance and noise in a model turbofan simulator / Christopher E. Hughes [and three others].
- Text
- Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, December 2013.
- 2013-12
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo50531Further development of rotating rake mode measurement data analysis / Milo D. Dahl, Ray Hixon, Daniel L. Sutliff.
- Text
- Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, June 2013.
- 2013-6
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo51763Farfield plume measurement and analysis on the NASA-300M and NASA-300MS / Wensheng Huang [and three others].
- Text
- Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, December 2013.
- 2013-12
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo54351Noise measurements of high aspect ratio distributed exhaust systems / James E. Bridges.
- Text
- Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, December 2015.
- 2015-12
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo65870A study of the sonic-boom characteristics of a blunt body at a Mach number of 6 / George C. Ashby, Jr.
- Text
- [Washington, D.C.] : National Aeronautics and Space Administration, Scientific and Technical Information Branch, December 1980.
- 1980-12
- 1 Resource
Available Online
https://purl.fdlp.gov/GPO/gpo71442
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