FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2905872617> ?p ?o ?g. }

• W2905872617 endingPage "84" @default.
• W2905872617 startingPage "69" @default.
• W2905872617 abstract "Abstract Helmholtz resonators (HRs) are widely used to damp acoustic oscillations, including in the combustors of aero-engines and power gas turbines where they damp thermoacoustic oscillations. The geometries of such combustors are often annular in shape, which means that low frequency acoustic modes exhibit both longitudinal and circumferential modeshapes, the latter across different circumferential wave numbers. For linear acoustic disturbances downstream of the flame, the presence of HRs leads to modal coupling and mode shape shifts, which makes design and placement of multiple HRs very complicated. A procedure which ensures that the design and placement of the HRs can be optimised for good acoustic damping performance would be very valuable, and such a procedure is presented in this work. A simplified linear, low-dimensional model for the acoustic behaviour in a hot annular duct sustaining a mean flow is extended to account for the attachment of multiple HRs. The HRs are assumed to sustain a cooling mean bias flow through them, towards the combustor, such that they can be modelled using linear, lumped element Rayleigh conductivity models. An optimisation method based on the gradient derived from adjoint sensitivity analysis is then applied to the low order network acoustic modelling framework for hot annular ducts incorporating HR models, for the first time. It is used to optimise over multiple HR geometry and placement parameters, to obtain optimum acoustic damping over all acoustic modes in a given frequency range. These optimisation procedures are validated via multi-dimensional parameter sweep results. Thus a novel and efficient tool for HR optimisation for thin annular ducts is presented." @default.
• W2905872617 created "2019-01-01" @default.
• W2905872617 creator A5002111794 @default.
• W2905872617 creator A5028848706 @default.
• W2905872617 creator A5073472411 @default.
• W2905872617 creator A5074241330 @default.
• W2905872617 date "2019-03-01" @default.
• W2905872617 modified "2023-09-24" @default.
• W2905872617 title "Optimising the acoustic damping of multiple Helmholtz resonators attached to a thin annular duct" @default.
• W2905872617 cites W1968874483 @default.
• W2905872617 cites W1971836349 @default.
• W2905872617 cites W1972375414 @default.
• W2905872617 cites W1974605384 @default.
• W2905872617 cites W1975449444 @default.
• W2905872617 cites W1978222634 @default.
• W2905872617 cites W1979370207 @default.
• W2905872617 cites W1980092562 @default.
• W2905872617 cites W1980372150 @default.
• W2905872617 cites W1992985804 @default.
• W2905872617 cites W1996231417 @default.
• W2905872617 cites W1998514542 @default.
• W2905872617 cites W2002877959 @default.
• W2905872617 cites W2010196864 @default.
• W2905872617 cites W2030442661 @default.
• W2905872617 cites W2041038272 @default.
• W2905872617 cites W2047372031 @default.
• W2905872617 cites W2051669046 @default.
• W2905872617 cites W2068625077 @default.
• W2905872617 cites W2070129868 @default.
• W2905872617 cites W2079943687 @default.
• W2905872617 cites W2086199517 @default.
• W2905872617 cites W2096293624 @default.
• W2905872617 cites W2096838966 @default.
• W2905872617 cites W2100861023 @default.
• W2905872617 cites W2101506489 @default.
• W2905872617 cites W2107074489 @default.
• W2905872617 cites W2107560436 @default.
• W2905872617 cites W2136577285 @default.
• W2905872617 cites W2137522638 @default.
• W2905872617 cites W2147200495 @default.
• W2905872617 cites W2158177757 @default.
• W2905872617 cites W2169063526 @default.
• W2905872617 cites W2252632977 @default.
• W2905872617 cites W2274110541 @default.
• W2905872617 cites W2343816114 @default.
• W2905872617 cites W2397583949 @default.
• W2905872617 cites W2460908975 @default.
• W2905872617 cites W2462606330 @default.
• W2905872617 cites W2462722652 @default.
• W2905872617 cites W2515716657 @default.
• W2905872617 cites W2576458594 @default.
• W2905872617 cites W2604169129 @default.
• W2905872617 cites W2615665845 @default.
• W2905872617 cites W2617459666 @default.
• W2905872617 cites W2883312071 @default.
• W2905872617 cites W3104061649 @default.
• W2905872617 cites W4240378884 @default.
• W2905872617 cites W4242055673 @default.
• W2905872617 doi "https://doi.org/10.1016/j.jsv.2018.12.023" @default.
• W2905872617 hasPublicationYear "2019" @default.
• W2905872617 type Work @default.
• W2905872617 sameAs 2905872617 @default.
• W2905872617 citedByCount "20" @default.
• W2905872617 countsByYear W29058726172019 @default.
• W2905872617 countsByYear W29058726172020 @default.
• W2905872617 countsByYear W29058726172021 @default.
• W2905872617 countsByYear W29058726172022 @default.
• W2905872617 countsByYear W29058726172023 @default.
• W2905872617 crossrefType "journal-article" @default.
• W2905872617 hasAuthorship W2905872617A5002111794 @default.
• W2905872617 hasAuthorship W2905872617A5028848706 @default.
• W2905872617 hasAuthorship W2905872617A5073472411 @default.
• W2905872617 hasAuthorship W2905872617A5074241330 @default.
• W2905872617 hasBestOaLocation W29058726172 @default.
• W2905872617 hasConcept C120665830 @default.
• W2905872617 hasConcept C121332964 @default.
• W2905872617 hasConcept C142724271 @default.
• W2905872617 hasConcept C170344590 @default.
• W2905872617 hasConcept C192562407 @default.
• W2905872617 hasConcept C24890656 @default.
• W2905872617 hasConcept C27592594 @default.
• W2905872617 hasConcept C2781212128 @default.
• W2905872617 hasConcept C62520636 @default.
• W2905872617 hasConcept C71924100 @default.
• W2905872617 hasConcept C97126364 @default.
• W2905872617 hasConceptScore W2905872617C120665830 @default.
• W2905872617 hasConceptScore W2905872617C121332964 @default.
• W2905872617 hasConceptScore W2905872617C142724271 @default.
• W2905872617 hasConceptScore W2905872617C170344590 @default.
• W2905872617 hasConceptScore W2905872617C192562407 @default.
• W2905872617 hasConceptScore W2905872617C24890656 @default.
• W2905872617 hasConceptScore W2905872617C27592594 @default.
• W2905872617 hasConceptScore W2905872617C2781212128 @default.
• W2905872617 hasConceptScore W2905872617C62520636 @default.
• W2905872617 hasConceptScore W2905872617C71924100 @default.
• W2905872617 hasConceptScore W2905872617C97126364 @default.
• W2905872617 hasFunder F4320334627 @default.
• W2905872617 hasLocation W29058726171 @default.

• next