FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4282578013> ?p ?o ?g. }

• W4282578013 abstract "This paper presents a theoretical and numerical investigation into the broadband (BB) modal analysis in complex swirling flows, typical of the aeroengine interstage. Asymptotic (high-frequency limit) wavenumber distribution approaches, measuring the BB modal amplitudes as a continuous distribution over the normalised modal axial wavenumber (ζ) , have previously been developed and validated under uniform axial flow conditions. In the swirling flows, however, the use of ζ as a modal analysis parameter was previously shown to result in an ambiguous region of modal overlap, the ζ values within which correspond to both the upstream and the downstream propagating modes and are therefore indistinguishable. In this paper, the potential significance of this wavenumber overlap on the BB modal analysis has been studied in detail. It has been shown that at the higher mean swirl levels (typical of the cutback/sideline), this modal overlap region is consequential in terms of the proportion of the total modal power (as well as pressure) it obscures, rendering the existing 1-D mode detection techniques (based on ζ) unreliable for estimating the relative modal levels of the upstream and the downstream side sources. Using a simple analytical model, the distinctive features of the multi-modal sound field in a swirling flow have been elucidated, with the ambiguous phenomenon of the modal overlap explained through an order-of-magnitude analysis. Based on the resulting inferences, a new phased array technique (called here as the two-ring method) has been developed, which employs two close-by wall-microphone rings to separately estimate the BB mode amplitude distribution for the co-rotating and the contra-rotating spinning modes. The 2-D wavenumber distribution approach (based on the azimuthal number, m, and ζ) of the new technique has been shown to effectively separate the dominant overlapping modes at the higher mean swirl levels, resulting in an enhanced and reliable prediction of the relative source contribution in complex swirling flow conditions." @default.
• W4282578013 created "2022-06-14" @default.
• W4282578013 creator A5001921983 @default.
• W4282578013 creator A5003212432 @default.
• W4282578013 creator A5064210147 @default.
• W4282578013 date "2022-06-13" @default.
• W4282578013 modified "2023-09-26" @default.
• W4282578013 title "High-frequency ducted broadband acoustic mode detection in the swirling flows" @default.
• W4282578013 cites W1779966370 @default.
• W4282578013 cites W1993005350 @default.
• W4282578013 cites W2001782185 @default.
• W4282578013 cites W2012383329 @default.
• W4282578013 cites W2037924216 @default.
• W4282578013 cites W2039736405 @default.
• W4282578013 cites W2059138588 @default.
• W4282578013 cites W2071791814 @default.
• W4282578013 cites W2078583398 @default.
• W4282578013 cites W2120667416 @default.
• W4282578013 cites W2126204188 @default.
• W4282578013 cites W2316178524 @default.
• W4282578013 cites W2319927373 @default.
• W4282578013 cites W2329187101 @default.
• W4282578013 cites W2554193346 @default.
• W4282578013 cites W2762021540 @default.
• W4282578013 cites W2810687670 @default.
• W4282578013 cites W2886449735 @default.
• W4282578013 cites W2946590462 @default.
• W4282578013 cites W3049156268 @default.
• W4282578013 doi "https://doi.org/10.2514/6.2022-3016" @default.
• W4282578013 hasPublicationYear "2022" @default.
• W4282578013 type Work @default.
• W4282578013 citedByCount "0" @default.
• W4282578013 crossrefType "proceedings-article" @default.
• W4282578013 hasAuthorship W4282578013A5001921983 @default.
• W4282578013 hasAuthorship W4282578013A5003212432 @default.
• W4282578013 hasAuthorship W4282578013A5064210147 @default.
• W4282578013 hasConcept C104286136 @default.
• W4282578013 hasConcept C120665830 @default.
• W4282578013 hasConcept C121130766 @default.
• W4282578013 hasConcept C121332964 @default.
• W4282578013 hasConcept C131043120 @default.
• W4282578013 hasConcept C178736951 @default.
• W4282578013 hasConcept C180205008 @default.
• W4282578013 hasConcept C185592680 @default.
• W4282578013 hasConcept C188027245 @default.
• W4282578013 hasConcept C198394728 @default.
• W4282578013 hasConcept C200239387 @default.
• W4282578013 hasConcept C24890656 @default.
• W4282578013 hasConcept C2776960193 @default.
• W4282578013 hasConcept C2778263558 @default.
• W4282578013 hasConcept C32758168 @default.
• W4282578013 hasConcept C509933004 @default.
• W4282578013 hasConcept C57879066 @default.
• W4282578013 hasConcept C68115822 @default.
• W4282578013 hasConcept C71139939 @default.
• W4282578013 hasConceptScore W4282578013C104286136 @default.
• W4282578013 hasConceptScore W4282578013C120665830 @default.
• W4282578013 hasConceptScore W4282578013C121130766 @default.
• W4282578013 hasConceptScore W4282578013C121332964 @default.
• W4282578013 hasConceptScore W4282578013C131043120 @default.
• W4282578013 hasConceptScore W4282578013C178736951 @default.
• W4282578013 hasConceptScore W4282578013C180205008 @default.
• W4282578013 hasConceptScore W4282578013C185592680 @default.
• W4282578013 hasConceptScore W4282578013C188027245 @default.
• W4282578013 hasConceptScore W4282578013C198394728 @default.
• W4282578013 hasConceptScore W4282578013C200239387 @default.
• W4282578013 hasConceptScore W4282578013C24890656 @default.
• W4282578013 hasConceptScore W4282578013C2776960193 @default.
• W4282578013 hasConceptScore W4282578013C2778263558 @default.
• W4282578013 hasConceptScore W4282578013C32758168 @default.
• W4282578013 hasConceptScore W4282578013C509933004 @default.
• W4282578013 hasConceptScore W4282578013C57879066 @default.
• W4282578013 hasConceptScore W4282578013C68115822 @default.
• W4282578013 hasConceptScore W4282578013C71139939 @default.
• W4282578013 hasLocation W42825780131 @default.
• W4282578013 hasOpenAccess W4282578013 @default.
• W4282578013 hasPrimaryLocation W42825780131 @default.
• W4282578013 hasRelatedWork W1972187735 @default.
• W4282578013 hasRelatedWork W2036164221 @default.
• W4282578013 hasRelatedWork W2189008278 @default.
• W4282578013 hasRelatedWork W2261376676 @default.
• W4282578013 hasRelatedWork W2273532701 @default.
• W4282578013 hasRelatedWork W3032372985 @default.
• W4282578013 hasRelatedWork W3095660817 @default.
• W4282578013 hasRelatedWork W4247804132 @default.
• W4282578013 hasRelatedWork W4254785368 @default.
• W4282578013 hasRelatedWork W4321484763 @default.
• W4282578013 isParatext "false" @default.
• W4282578013 isRetracted "false" @default.
• W4282578013 workType "article" @default.