Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Rajiv Shenoy"'
Publikováno v:
AIAA Propulsion and Energy 2019 Forum.
An investigation utilizing Reynolds-averaged simulations (RAS) was performed in order to demonstrate the use of design and analysis of computer experiments (DACE) methods in Sandia’s DAKOTA software package for surrogate modeling and optimization.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::500d6ecf0521fceebfff4f87dd266f67
https://doi.org/10.2514/6.2019-4196
https://doi.org/10.2514/6.2019-4196
Publikováno v:
Journal of the American Helicopter Society. 61:1-17
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff17c11d75730b060f41d265f2b10105
https://doi.org/10.4050/jahs.61.022007
https://doi.org/10.4050/jahs.61.022007
Publikováno v:
2018 Joint Propulsion Conference.
CFD analysis is presented of the mixing characteristics and performance of three fuel injectors at flight Mach numbers of 8, 12, and 15. The Reynolds-averaged simulations (RAS) were carried out using the VULCAN-CFD solver. The high Mach number flow c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::200613a8c2b5d5820e896284e19bf591
https://doi.org/10.2514/6.2018-4540
https://doi.org/10.2514/6.2018-4540
Publikováno v:
International Journal for Numerical Methods in Engineering. 101:470-488
Summary A parallel localization scheme is presented to enable solution transfers between unstructured grids. The scheme relies on neighbor walks to reduce the number of candidate elements that are visited to find the enclosing element. An advancing f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2d1ce2db48f3fb2136432e9e9310cef
https://doi.org/10.1002/nme.4812
https://doi.org/10.1002/nme.4812
Publikováno v:
Journal of Aircraft. 51:161-174
Schemes for anisotropic grid adaptation for dynamic overset simulations are presented. These approaches permit adaptation over a periodic time window in a dynamic flowfield so that an accurate evolution of the unsteady wake may be obtained, as demons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee50ef278f179a9a97009ff5a8d1c065
https://doi.org/10.2514/1.c032195
https://doi.org/10.2514/1.c032195
Publikováno v:
Aerospace Science and Technology. 28:164-175
Hubs of rotating systems have a significant contribution to the total vehicle parasite drag. The complexity of hub configurations and of the flows around them leads to large uncertainty in drag prediction at the design stage, which inhibits the devel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e8335944afa09b6889eac0c3ff90e5c
https://doi.org/10.1016/j.ast.2012.10.012
https://doi.org/10.1016/j.ast.2012.10.012
Publikováno v:
Journal of the American Helicopter Society. 58:1-13
Parasite drag on rotorcraft can become a crucial factor in forward flight, especially during high-speed flight. Prior evaluations of the ability of computational methods to predict hub drag have focused on the ability of these solvers to match model-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee8b90841c939f5a8ab6c1b439259193
https://doi.org/10.4050/jahs.58.032002
https://doi.org/10.4050/jahs.58.032002
Publikováno v:
AIAA Modeling and Simulation Technologies Conference.
The objective of this study is the investigation of rotorcraft/terrain interactions using Navier-Stokes CFD coupled with a helicopter flight dynamics model. In the coupled simulations, the flight dynamics model is free to move within a computational
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee45139db4f2e88584512416f9435f39
https://doi.org/10.2514/6.2016-2136
https://doi.org/10.2514/6.2016-2136
Autor:
Marilyn J. Smith, Rajiv Shenoy
Development, validation and demonstration of a computational approach to model complex rotorcraft hubs, their components and their wakes for both static and rotating operation has been developed. A priori computations were compared with experimental
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3820669b1b5c6b8aa9ffc5b61f05d900
https://doi.org/10.21236/ada590986
https://doi.org/10.21236/ada590986
Publikováno v:
50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition.
Main rotor hubs contribute signi cantly to the helicopter’s parasite drag. Due to the complex geometry of typical hub con gurations, large uncertainties in loads and wake ow eld phenomena inhibit the development of improved concepts at the design s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a6a0a78f6d45e7efa0fc79852115bb7
https://doi.org/10.2514/6.2012-1070
https://doi.org/10.2514/6.2012-1070