Matches in SemOpenAlex for { <https://semopenalex.org/work/W2333397679> ?p ?o ?g. }
Showing items 1 to 97 of
97
with 100 items per page.
- W2333397679 abstract "A non-negligible part of the noise emitted from aero-engines is due to combustion. The relative importance of this source is even expected to increase with the next generations of engines where both fan and jet noise are reduced with such technologies as chevrons, micro-jets or highly-swept and leaned composite blades. In his PhD. dissertation, Candel showed that the noise due to combustion in aero-engines could have two different origins: (a) the well-known direct combustion noise, which is directly generated by the unsteady combustion, and transmitted and reflected through the upstream (compressor) and downstream (turbine) turbo-machinery stages; and (b) an additional source of noise, the indirect combustion noise. The latter comes from the conversion of entropy spots generated by the combustion into acoustic waves when they accelerate in the downstream turbine stages. Candel showed that this source could be important and explain the observed excess noise. More recently, Leyko et al. developed scaling laws from a simplified one-dimensional (1-D) model of combustor, which showed that the indirect combustion noise could even be ten times as important as the direct one. For both direct and indirect noise sources, the downstream turbo-machinery is involved in the transmission and generation of the combustion noise. Thus, the acoustic behavior of the turbine blade rows must be known to evaluate the noise due to combustion at the engine outlet. More specifically, the transfer functions of the turbo-machinery stages for the waves involved in the combustion process (acoustic, entropy and vortical) must be calculated. Several analytical and semi-analytical approaches have been proposed for 2-D flows to deal with the propagation of acoustic waves and vortices through turbo-machinery stages. Muir 5 delt with the case of the actuator disk theory which assumed a 2-D configuration with an infinitely thin blade row, and used classical conservation laws to establish relations between upstream and downstream flow. Kaji and Okazaki 7 proposed the semi-disk actuator theory assuming in a first step that the spacing between the blades was infinitely thin but the chord-length was finite. A second step 7 proposed a model with a finite chord-length and a finite spacing between blades. For both cases, the equations were solved numerically. Many other models are available for such 2-D problems. Recently Posson and Roger proposed a three-dimensional rectilinear cascade model both for generation and transmission losses based on Glegg’s response, which also accounted for cascade effects and finite chord, but neglected flow deviation (flat plates" @default.
- W2333397679 created "2016-06-24" @default.
- W2333397679 creator A5015772240 @default.
- W2333397679 creator A5061700845 @default.
- W2333397679 creator A5072781407 @default.
- W2333397679 creator A5076407396 @default.
- W2333397679 date "2010-06-07" @default.
- W2333397679 modified "2023-09-28" @default.
- W2333397679 title "Waves Transmission and Generation in Turbine Stages in a Combustion-Noise Framework" @default.
- W2333397679 cites W1647825074 @default.
- W2333397679 cites W2007944239 @default.
- W2333397679 cites W2031164962 @default.
- W2333397679 cites W2040942403 @default.
- W2333397679 cites W2048308917 @default.
- W2333397679 cites W2051685246 @default.
- W2333397679 cites W2070129868 @default.
- W2333397679 cites W2112073874 @default.
- W2333397679 cites W2143999189 @default.
- W2333397679 cites W2316473163 @default.
- W2333397679 cites W2323154597 @default.
- W2333397679 cites W2908927839 @default.
- W2333397679 cites W4253983490 @default.
- W2333397679 doi "https://doi.org/10.2514/6.2010-4032" @default.
- W2333397679 hasPublicationYear "2010" @default.
- W2333397679 type Work @default.
- W2333397679 sameAs 2333397679 @default.
- W2333397679 citedByCount "11" @default.
- W2333397679 countsByYear W23333976792012 @default.
- W2333397679 countsByYear W23333976792013 @default.
- W2333397679 countsByYear W23333976792015 @default.
- W2333397679 countsByYear W23333976792016 @default.
- W2333397679 countsByYear W23333976792017 @default.
- W2333397679 countsByYear W23333976792021 @default.
- W2333397679 crossrefType "proceedings-article" @default.
- W2333397679 hasAuthorship W2333397679A5015772240 @default.
- W2333397679 hasAuthorship W2333397679A5061700845 @default.
- W2333397679 hasAuthorship W2333397679A5072781407 @default.
- W2333397679 hasAuthorship W2333397679A5076407396 @default.
- W2333397679 hasConcept C105923489 @default.
- W2333397679 hasConcept C106169591 @default.
- W2333397679 hasConcept C115961682 @default.
- W2333397679 hasConcept C121332964 @default.
- W2333397679 hasConcept C127413603 @default.
- W2333397679 hasConcept C131097465 @default.
- W2333397679 hasConcept C146978453 @default.
- W2333397679 hasConcept C154945302 @default.
- W2333397679 hasConcept C178790620 @default.
- W2333397679 hasConcept C185592680 @default.
- W2333397679 hasConcept C24890656 @default.
- W2333397679 hasConcept C2778449969 @default.
- W2333397679 hasConcept C39643299 @default.
- W2333397679 hasConcept C41008148 @default.
- W2333397679 hasConcept C83104080 @default.
- W2333397679 hasConcept C99498987 @default.
- W2333397679 hasConceptScore W2333397679C105923489 @default.
- W2333397679 hasConceptScore W2333397679C106169591 @default.
- W2333397679 hasConceptScore W2333397679C115961682 @default.
- W2333397679 hasConceptScore W2333397679C121332964 @default.
- W2333397679 hasConceptScore W2333397679C127413603 @default.
- W2333397679 hasConceptScore W2333397679C131097465 @default.
- W2333397679 hasConceptScore W2333397679C146978453 @default.
- W2333397679 hasConceptScore W2333397679C154945302 @default.
- W2333397679 hasConceptScore W2333397679C178790620 @default.
- W2333397679 hasConceptScore W2333397679C185592680 @default.
- W2333397679 hasConceptScore W2333397679C24890656 @default.
- W2333397679 hasConceptScore W2333397679C2778449969 @default.
- W2333397679 hasConceptScore W2333397679C39643299 @default.
- W2333397679 hasConceptScore W2333397679C41008148 @default.
- W2333397679 hasConceptScore W2333397679C83104080 @default.
- W2333397679 hasConceptScore W2333397679C99498987 @default.
- W2333397679 hasLocation W23333976791 @default.
- W2333397679 hasOpenAccess W2333397679 @default.
- W2333397679 hasPrimaryLocation W23333976791 @default.
- W2333397679 hasRelatedWork W153837087 @default.
- W2333397679 hasRelatedWork W1881174544 @default.
- W2333397679 hasRelatedWork W2029254470 @default.
- W2333397679 hasRelatedWork W2031164962 @default.
- W2333397679 hasRelatedWork W2040942403 @default.
- W2333397679 hasRelatedWork W2047372031 @default.
- W2333397679 hasRelatedWork W2051685246 @default.
- W2333397679 hasRelatedWork W2051789076 @default.
- W2333397679 hasRelatedWork W2078644903 @default.
- W2333397679 hasRelatedWork W2086465687 @default.
- W2333397679 hasRelatedWork W2087939891 @default.
- W2333397679 hasRelatedWork W2112833299 @default.
- W2333397679 hasRelatedWork W2128060671 @default.
- W2333397679 hasRelatedWork W2143113720 @default.
- W2333397679 hasRelatedWork W2153852594 @default.
- W2333397679 hasRelatedWork W2165470087 @default.
- W2333397679 hasRelatedWork W2334013413 @default.
- W2333397679 hasRelatedWork W2916049538 @default.
- W2333397679 hasRelatedWork W3101949009 @default.
- W2333397679 hasRelatedWork W3167724653 @default.
- W2333397679 isParatext "false" @default.
- W2333397679 isRetracted "false" @default.
- W2333397679 magId "2333397679" @default.
- W2333397679 workType "article" @default.