Zobrazeno 1 - 10
of 25
pro vyhledávání: '"S. Paul Pao"'
Publikováno v:
Journal of Spacecraft and Rockets. 49:666-678
USM3Dwasused to investigate the jet-interaction effects from the roll-control systemon the rollingmoment of two Ares configurations at wind-tunnel Reynolds numbers. Approaches were established for modeling the roll-control system and for analyzing th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a5b135f6995c0113873d21c59e54e0c
https://doi.org/10.2514/1.a32110
https://doi.org/10.2514/1.a32110
Publikováno v:
Journal of Aircraft. 47:434-440
Two multiscale-type turbulence models are implemented in the PAB3D solver. The models are based on modifying Reynolds-averaged Navier―Stokes equations. The first scheme is a hybrid Reynolds-averaged Navier―Stokes and large eddy simulation model u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f6cb6cd95b9470cfcf61317a1159647
https://doi.org/10.2514/1.18765
https://doi.org/10.2514/1.18765
Publikováno v:
49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition.
Approaches were established for modeling the roll control system and analyzing the jet interactions of the activated roll control system on Ares-type configurations using the USM3D Navier-Stokes solver. Components of the modeling approach for the rol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abf01fbbc4fd97268cbc59c989d91fd1
https://doi.org/10.2514/6.2011-1056
https://doi.org/10.2514/6.2011-1056
Publikováno v:
49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a61431b2953c1c8435c0896571e2b1ab
https://doi.org/10.2514/6.2011-172
https://doi.org/10.2514/6.2011-172
Autor:
Vinod G. Mengle, S. Paul Pao, Russell H. Thomas, Alaa Elmiligui, Craig A. Hunter, Steven J. Massey
Publikováno v:
12th AIAA/CEAS Aeroacoustics Conference (27th AIAA Aeroacoustics Conference).
A computational flow field and predicted jet noise source analysis is presented for asymmetrical fan chevrons on a modern separate flow nozzle at take off conditions. The propulsion airframe aeroacoustic asymmetric fan nozzle is designed with an azim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b2f4d70e4cd51e2e39ce0a8aad44a7b
https://doi.org/10.2514/6.2006-2436
https://doi.org/10.2514/6.2006-2436
Autor:
Khaled S. Abdol-Hamid, Richard L. Campbell, Steven J. Massey, Alaa Elmiligui, Craig A. Hunter, S. Paul Pao
Publikováno v:
12th AIAA/CEAS Aeroacoustics Conference (27th AIAA Aeroacoustics Conference).
Using unstructured mesh CFD methods for Propulsion Airframe Aeroacoustics (PAA) analysis has the distinct advantage of precise and fast computational mesh generation for complex propulsion and airframe integration arrangements that include engine inl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1c113b9e64dd0861cbfb00ecb7a919d
https://doi.org/10.2514/6.2006-2597
https://doi.org/10.2514/6.2006-2597
Autor:
Alaa Elmiligui, Craig A. Hunter, Eagle Aeronautics, Steven J. Massey, S. Paul Pao, Russell H. Thomas
Publikováno v:
11th AIAA/CEAS Aeroacoustics Conference.
Computational simulation and prediction tools were used to understand the jet-pylon interaction effect in a set of bypass-ratio five core/fan nozzles. Results suggest that the pylon acts as a large scale mixing vane that perturbs the jet flow and jum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6eccad5be965cf9a70e3ff79941a7687
https://doi.org/10.2514/6.2005-3083
https://doi.org/10.2514/6.2005-3083
Publikováno v:
22nd Applied Aerodynamics Conference and Exhibit.
Two multiscale type turbulence models are implemented in the PAB3D solver. The models are based on modifying the Reynolds Averaged Navier-Stokes (RANS) equations. The first scheme is a hybrid RANS/LES model utilizing the two-equation (ke) model with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5038c6a7ac89af17cd26fafa6435adfb
https://doi.org/10.2514/6.2004-4959
https://doi.org/10.2514/6.2004-4959
Autor:
Anna-Maria Rivas McGowan, S. Paul Pao, Barry S. Lazos, David E. Cox, Martin R. Waszak, David L. Raney, Emilie J. Siochi
Publikováno v:
SPIE Proceedings.
For centuries, biology has provided fertile ground for hypothesis, discovery, and inspiration. Time-tested methods used in nature are being used as a basis for several research studies conducted at the NASA Langley Research Center as a part of Morphi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f64125989f9ece6b70b8457a5eb8459
https://doi.org/10.1117/12.484714
https://doi.org/10.1117/12.484714
Publikováno v:
7th AIAA/CEAS Aeroacoustics Conference and Exhibit.
In typical engine installations, the pylon of an engine creates a flow disturbance that interacts with the engine exhaust flow. This interaction of the pylon with the exhaust flow from a dual stream nozzle was studied computationally. The dual stream
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74a15f91890b0f634b23269d7e76769c
https://doi.org/10.2514/6.2001-2185
https://doi.org/10.2514/6.2001-2185