Matches in SemOpenAlex for { <https://semopenalex.org/work/W2021194132> ?p ?o ?g. }
Showing items 1 to 93 of
93
with 100 items per page.
- W2021194132 endingPage "2712" @default.
- W2021194132 startingPage "2695" @default.
- W2021194132 abstract "The accurate prediction of jet noise from dual-stream nozzle exhaust geometries typical of high bypass ratio turbofan engines has practical relevance for aircraft design studies and in aircraft noise certification. Existing empirical methods do not provide good predictions against measured data; in addition, they are restricted to lower area ratio (secondary to primary) nozzle geometries and lower bypass ratios (BPR). The area ratio and BPR of newer engines have increased substantially, well beyond the range of validity of existing prediction methods. Therefore, there is a dire need to develop an accurate empirical prediction method that is valid over a wider range of jet operating conditions and nozzle geometries that are representative of current engines. A wind tunnel test has been completed and a comprehensive database from realistic geometries and operating conditions has been generated. The data have been analyzed and investigated with an eye towards modeling that would lead to an empirical prediction method. The area ratio and BPR cover wide ranges that encompass all current engines and potential ultra-high BPR engines of the future. The spectral characteristics have been examined and the effects of the following parametric variations are reported in this paper: (1) impact of area ratio with fixed, but over a range of, power settings; (2) at a given As/Ap, fixed primary jet and systematically varying secondary conditions; (3) at a given As/Ap, fixed secondary jet and systematically varying primary conditions; and (4) the effects of forward flight for the above situations. It is established that the characteristics of dual-stream jets with velocity ratio less than 0.5 are similar to those for a single jet, with the velocity ratio being the main controlling parameter and the area ratio playing a lesser role. At higher velocity ratios, contributions from the secondary shear layer is dominant at higher frequencies and the contributions from the mixed jet component controls the peak spectral levels in the peak radiation sector at large aft angles. At low inlet angles, the spectral shape remains invariant for all jet and geometric conditions." @default.
- W2021194132 created "2016-06-24" @default.
- W2021194132 creator A5004200489 @default.
- W2021194132 creator A5029064549 @default.
- W2021194132 creator A5079724543 @default.
- W2021194132 date "2011-12-01" @default.
- W2021194132 modified "2023-10-01" @default.
- W2021194132 title "Towards Prediction of Dual-Stream Jet Noise: Database Generation" @default.
- W2021194132 cites W1969551637 @default.
- W2021194132 cites W1988608117 @default.
- W2021194132 cites W1990300683 @default.
- W2021194132 cites W1993361864 @default.
- W2021194132 cites W1993444906 @default.
- W2021194132 cites W1995970293 @default.
- W2021194132 cites W2003672561 @default.
- W2021194132 cites W2025405092 @default.
- W2021194132 cites W2044070003 @default.
- W2021194132 cites W2054538780 @default.
- W2021194132 cites W2056708724 @default.
- W2021194132 cites W2056851918 @default.
- W2021194132 cites W2058218581 @default.
- W2021194132 cites W2080592076 @default.
- W2021194132 cites W2092859412 @default.
- W2021194132 cites W2100368335 @default.
- W2021194132 cites W2104515493 @default.
- W2021194132 cites W2126980725 @default.
- W2021194132 cites W2145130735 @default.
- W2021194132 cites W2155771262 @default.
- W2021194132 cites W2168147587 @default.
- W2021194132 cites W4246988309 @default.
- W2021194132 doi "https://doi.org/10.2514/1.j051124" @default.
- W2021194132 hasPublicationYear "2011" @default.
- W2021194132 type Work @default.
- W2021194132 sameAs 2021194132 @default.
- W2021194132 citedByCount "13" @default.
- W2021194132 countsByYear W20211941322012 @default.
- W2021194132 countsByYear W20211941322013 @default.
- W2021194132 countsByYear W20211941322014 @default.
- W2021194132 countsByYear W20211941322016 @default.
- W2021194132 countsByYear W20211941322017 @default.
- W2021194132 countsByYear W20211941322018 @default.
- W2021194132 countsByYear W20211941322019 @default.
- W2021194132 crossrefType "journal-article" @default.
- W2021194132 hasAuthorship W2021194132A5004200489 @default.
- W2021194132 hasAuthorship W2021194132A5029064549 @default.
- W2021194132 hasAuthorship W2021194132A5079724543 @default.
- W2021194132 hasConcept C115961682 @default.
- W2021194132 hasConcept C119947313 @default.
- W2021194132 hasConcept C121332964 @default.
- W2021194132 hasConcept C124952713 @default.
- W2021194132 hasConcept C142362112 @default.
- W2021194132 hasConcept C154945302 @default.
- W2021194132 hasConcept C24890656 @default.
- W2021194132 hasConcept C2778940620 @default.
- W2021194132 hasConcept C2780980858 @default.
- W2021194132 hasConcept C41008148 @default.
- W2021194132 hasConcept C57879066 @default.
- W2021194132 hasConcept C77088390 @default.
- W2021194132 hasConcept C99498987 @default.
- W2021194132 hasConceptScore W2021194132C115961682 @default.
- W2021194132 hasConceptScore W2021194132C119947313 @default.
- W2021194132 hasConceptScore W2021194132C121332964 @default.
- W2021194132 hasConceptScore W2021194132C124952713 @default.
- W2021194132 hasConceptScore W2021194132C142362112 @default.
- W2021194132 hasConceptScore W2021194132C154945302 @default.
- W2021194132 hasConceptScore W2021194132C24890656 @default.
- W2021194132 hasConceptScore W2021194132C2778940620 @default.
- W2021194132 hasConceptScore W2021194132C2780980858 @default.
- W2021194132 hasConceptScore W2021194132C41008148 @default.
- W2021194132 hasConceptScore W2021194132C57879066 @default.
- W2021194132 hasConceptScore W2021194132C77088390 @default.
- W2021194132 hasConceptScore W2021194132C99498987 @default.
- W2021194132 hasIssue "12" @default.
- W2021194132 hasLocation W20211941321 @default.
- W2021194132 hasOpenAccess W2021194132 @default.
- W2021194132 hasPrimaryLocation W20211941321 @default.
- W2021194132 hasRelatedWork W1986627327 @default.
- W2021194132 hasRelatedWork W2027613449 @default.
- W2021194132 hasRelatedWork W2029333781 @default.
- W2021194132 hasRelatedWork W2051036155 @default.
- W2021194132 hasRelatedWork W2055924089 @default.
- W2021194132 hasRelatedWork W2085143303 @default.
- W2021194132 hasRelatedWork W2086034953 @default.
- W2021194132 hasRelatedWork W2330725366 @default.
- W2021194132 hasRelatedWork W2361788298 @default.
- W2021194132 hasRelatedWork W4244371426 @default.
- W2021194132 hasVolume "49" @default.
- W2021194132 isParatext "false" @default.
- W2021194132 isRetracted "false" @default.
- W2021194132 magId "2021194132" @default.
- W2021194132 workType "article" @default.