Matches in SemOpenAlex for { <https://semopenalex.org/work/W839548564> ?p ?o ?g. }
Showing items 1 to 86 of
86
with 100 items per page.
- W839548564 abstract "This work aims at developing a statistical prediction method for BroadBand Shock-Associated Noise (BBSAN), following recent work from NASA and Boeing. The approach is similar to studies performed for mixing noise models.First, a methodology has been developed to compute the mean turbulent _ow _eld using the Reynolds Averaged Navier-Stokes (RANS) equations. These equations are solved with elsA, a solver developed by ONERA. Most calculations have been performed on academic configurations. An extensive test campaign has been conducted on these configurations at Ecole Centrale de Lyon (ECL), so that calculations have been thoroughly compared to measurements. Mainly, two operating conditions have been tested. The first one is a jet at Mj = 1:15. This condition is typical of a civil engine in cruise. The second operating condition is a jet at Mj = 1:35, which rather concerns military engines.An acoustic model has been developed. It uses the RANS calculation as an input to compute Power Spectrum Densities (PSDs). The intermediate version of the model does not account for refraction effects: acoustic sources are propagated to the far-field using a free field Green's function. As will be seen, this gives good results on simple configurations.The model has been extended to account for refraction effects. This is achieved by computing a Green's function tailored to the problem. A ray tracing method coupled to an adjoint approach has been used to evaluate the Green's function. The computation of the Green's function has been validated for simple cases. The Green's function calculation has been coupled to the acoustic model. PSDs including refraction effects on dual-streamjets are presented." @default.
- W839548564 created "2016-06-24" @default.
- W839548564 creator A5056428870 @default.
- W839548564 date "2012-12-13" @default.
- W839548564 modified "2023-09-27" @default.
- W839548564 title "Prediction of broadband shock-associated noise in static and flight conditions" @default.
- W839548564 hasPublicationYear "2012" @default.
- W839548564 type Work @default.
- W839548564 sameAs 839548564 @default.
- W839548564 citedByCount "1" @default.
- W839548564 countsByYear W8395485642014 @default.
- W839548564 crossrefType "dissertation" @default.
- W839548564 hasAuthorship W839548564A5056428870 @default.
- W839548564 hasConcept C11413529 @default.
- W839548564 hasConcept C115961682 @default.
- W839548564 hasConcept C121332964 @default.
- W839548564 hasConcept C126255220 @default.
- W839548564 hasConcept C126322002 @default.
- W839548564 hasConcept C127413603 @default.
- W839548564 hasConcept C132312353 @default.
- W839548564 hasConcept C14036430 @default.
- W839548564 hasConcept C146978453 @default.
- W839548564 hasConcept C154945302 @default.
- W839548564 hasConcept C196558001 @default.
- W839548564 hasConcept C2778770139 @default.
- W839548564 hasConcept C2781300812 @default.
- W839548564 hasConcept C28826006 @default.
- W839548564 hasConcept C32526432 @default.
- W839548564 hasConcept C33923547 @default.
- W839548564 hasConcept C41008148 @default.
- W839548564 hasConcept C45374587 @default.
- W839548564 hasConcept C57879066 @default.
- W839548564 hasConcept C71924100 @default.
- W839548564 hasConcept C78458016 @default.
- W839548564 hasConcept C86803240 @default.
- W839548564 hasConcept C99498987 @default.
- W839548564 hasConceptScore W839548564C11413529 @default.
- W839548564 hasConceptScore W839548564C115961682 @default.
- W839548564 hasConceptScore W839548564C121332964 @default.
- W839548564 hasConceptScore W839548564C126255220 @default.
- W839548564 hasConceptScore W839548564C126322002 @default.
- W839548564 hasConceptScore W839548564C127413603 @default.
- W839548564 hasConceptScore W839548564C132312353 @default.
- W839548564 hasConceptScore W839548564C14036430 @default.
- W839548564 hasConceptScore W839548564C146978453 @default.
- W839548564 hasConceptScore W839548564C154945302 @default.
- W839548564 hasConceptScore W839548564C196558001 @default.
- W839548564 hasConceptScore W839548564C2778770139 @default.
- W839548564 hasConceptScore W839548564C2781300812 @default.
- W839548564 hasConceptScore W839548564C28826006 @default.
- W839548564 hasConceptScore W839548564C32526432 @default.
- W839548564 hasConceptScore W839548564C33923547 @default.
- W839548564 hasConceptScore W839548564C41008148 @default.
- W839548564 hasConceptScore W839548564C45374587 @default.
- W839548564 hasConceptScore W839548564C57879066 @default.
- W839548564 hasConceptScore W839548564C71924100 @default.
- W839548564 hasConceptScore W839548564C78458016 @default.
- W839548564 hasConceptScore W839548564C86803240 @default.
- W839548564 hasConceptScore W839548564C99498987 @default.
- W839548564 hasLocation W8395485641 @default.
- W839548564 hasOpenAccess W839548564 @default.
- W839548564 hasPrimaryLocation W8395485641 @default.
- W839548564 hasRelatedWork W1982236747 @default.
- W839548564 hasRelatedWork W1984326409 @default.
- W839548564 hasRelatedWork W1991744220 @default.
- W839548564 hasRelatedWork W2001350488 @default.
- W839548564 hasRelatedWork W2002755782 @default.
- W839548564 hasRelatedWork W2038809752 @default.
- W839548564 hasRelatedWork W2054197107 @default.
- W839548564 hasRelatedWork W2070957694 @default.
- W839548564 hasRelatedWork W2071206769 @default.
- W839548564 hasRelatedWork W2097101678 @default.
- W839548564 hasRelatedWork W2120676910 @default.
- W839548564 hasRelatedWork W2128446983 @default.
- W839548564 hasRelatedWork W2141374558 @default.
- W839548564 hasRelatedWork W2184610301 @default.
- W839548564 hasRelatedWork W2319919950 @default.
- W839548564 hasRelatedWork W2328049966 @default.
- W839548564 hasRelatedWork W2556482973 @default.
- W839548564 hasRelatedWork W2902853398 @default.
- W839548564 hasRelatedWork W2999322293 @default.
- W839548564 hasRelatedWork W77472527 @default.
- W839548564 isParatext "false" @default.
- W839548564 isRetracted "false" @default.
- W839548564 magId "839548564" @default.
- W839548564 workType "dissertation" @default.