Matches in SemOpenAlex for { <https://semopenalex.org/work/W138886544> ?p ?o ?g. }
Showing items 1 to 71 of
71
with 100 items per page.
- W138886544 abstract "One possible method of reducing jet noise at take-off is the use of an ejector in which the propelling nozzle discharges into a shroud and thereby induces a secondary flow. The present report describes an experiment on systems of this type. The primary nozzle was axisymmetric and convergent and the shrouds were cylindrical with faired convergent entries. The stagnation temperatures of the primary and secondary streams were equal and the secondary flow was entrained from the ambient static atmosphere. Ratios of jet total pressure to ambient static pressure ranged from 1.0 to 2.0.A systematic study was made of the effect of ejector length, ejector area ratio and jet pressure ratio on the ejector performance. This was specified in terms of the ratio of secondary to primary mass flow, the velocity profile at the shroud out let and the thrust. Measurements were also made of the variation in static pressure along the shroud wall and the distribution of total and static pressure within a shroud.The results are in fair agreement with the predictions of a simplified ejector theory which assumes uniform one-dimensional flow at the entry and outlet of the shroud and negligible skin friction losses.No acoustic measurements were made. However, provisional calculations indicate that one shroud was about 12 db quieter than the unshrouded primary nozzle at the same jet pressure ratio. This shroud gave also a measured increase in thrust of some 9% relative to the same datum." @default.
- W138886544 created "2016-06-24" @default.
- W138886544 creator A5010551190 @default.
- W138886544 date "1962-01-31" @default.
- W138886544 modified "2023-09-24" @default.
- W138886544 title "The effect of a cylindrical shroud on the performance of a stationary convergent nozzle" @default.
- W138886544 hasPublicationYear "1962" @default.
- W138886544 type Work @default.
- W138886544 sameAs 138886544 @default.
- W138886544 citedByCount "3" @default.
- W138886544 crossrefType "journal-article" @default.
- W138886544 hasAuthorship W138886544A5010551190 @default.
- W138886544 hasConcept C119947313 @default.
- W138886544 hasConcept C121332964 @default.
- W138886544 hasConcept C127413603 @default.
- W138886544 hasConcept C131097465 @default.
- W138886544 hasConcept C135186712 @default.
- W138886544 hasConcept C158522163 @default.
- W138886544 hasConcept C165231844 @default.
- W138886544 hasConcept C192562407 @default.
- W138886544 hasConcept C2777096023 @default.
- W138886544 hasConcept C56200935 @default.
- W138886544 hasConcept C57879066 @default.
- W138886544 hasConcept C66938386 @default.
- W138886544 hasConcept C78519656 @default.
- W138886544 hasConcept C79420006 @default.
- W138886544 hasConcept C86980398 @default.
- W138886544 hasConcept C96261405 @default.
- W138886544 hasConceptScore W138886544C119947313 @default.
- W138886544 hasConceptScore W138886544C121332964 @default.
- W138886544 hasConceptScore W138886544C127413603 @default.
- W138886544 hasConceptScore W138886544C131097465 @default.
- W138886544 hasConceptScore W138886544C135186712 @default.
- W138886544 hasConceptScore W138886544C158522163 @default.
- W138886544 hasConceptScore W138886544C165231844 @default.
- W138886544 hasConceptScore W138886544C192562407 @default.
- W138886544 hasConceptScore W138886544C2777096023 @default.
- W138886544 hasConceptScore W138886544C56200935 @default.
- W138886544 hasConceptScore W138886544C57879066 @default.
- W138886544 hasConceptScore W138886544C66938386 @default.
- W138886544 hasConceptScore W138886544C78519656 @default.
- W138886544 hasConceptScore W138886544C79420006 @default.
- W138886544 hasConceptScore W138886544C86980398 @default.
- W138886544 hasConceptScore W138886544C96261405 @default.
- W138886544 hasLocation W1388865441 @default.
- W138886544 hasOpenAccess W138886544 @default.
- W138886544 hasPrimaryLocation W1388865441 @default.
- W138886544 hasRelatedWork W123497161 @default.
- W138886544 hasRelatedWork W146290068 @default.
- W138886544 hasRelatedWork W1546527505 @default.
- W138886544 hasRelatedWork W157723039 @default.
- W138886544 hasRelatedWork W1992395128 @default.
- W138886544 hasRelatedWork W2005007597 @default.
- W138886544 hasRelatedWork W2008347081 @default.
- W138886544 hasRelatedWork W2009388849 @default.
- W138886544 hasRelatedWork W2021587877 @default.
- W138886544 hasRelatedWork W2085319208 @default.
- W138886544 hasRelatedWork W2102083926 @default.
- W138886544 hasRelatedWork W210867431 @default.
- W138886544 hasRelatedWork W2164902437 @default.
- W138886544 hasRelatedWork W2374845656 @default.
- W138886544 hasRelatedWork W289827557 @default.
- W138886544 hasRelatedWork W3186589355 @default.
- W138886544 hasRelatedWork W583338095 @default.
- W138886544 hasRelatedWork W70788859 @default.
- W138886544 hasRelatedWork W237813468 @default.
- W138886544 hasRelatedWork W302312422 @default.
- W138886544 isParatext "false" @default.
- W138886544 isRetracted "false" @default.
- W138886544 magId "138886544" @default.
- W138886544 workType "article" @default.