Matches in SemOpenAlex for { <https://semopenalex.org/work/W350320609> ?p ?o ?g. }
Showing items 1 to 55 of
55
with 100 items per page.
- W350320609 abstract "Rocket and missile firings from attack helicopters can cause main engine compressor stall. Studies of this phenomenon suggest that the main engine ingests either the plume from the rockets or the rocket blast waves. This creates surges at the inlet face, causing a loss of power in the main engine. The objective of this project is to set-up a computational fluid dynamics (CFD) simulation of the AH-64D Apache Longbow helicopter during a rocket launch, in order to qualitatively study the fluid dynamics of the problem. This project presents a progression of three unsteady Navier-Stokes solutions. The first unsteady solution involves only a rocket launch from its launch canister. The second solution is a launch from a canister mounted on the Apache's wing-pylon assembly. The last solution includes the Apache main engine and fuselage. The computations use a series of structured, overset grid systems, which allow for a rocket moving in a prescribed path. The method implements a Roe upwind scheme with LU-SGS (lower-upper factored symmetric Gauss-Seidel). A rotor pressure disk model approximates the helicopter rotor, while the rocket engine exit properties are applied as a prescribed boundary condition. Although the project is only at the half-way point, the first and second CFD simulations suggest the possibility of pressure wave interference. Sudden surges in pressure occur from two sources: at rocket start-up, and as the rocket leaves the canister. Wave patterns set-up by these sources appear to propagate to the location of the engine inlet. However the simplified geometry simulation with the main engine needs to be performed before coming to a conclusion." @default.
- W350320609 created "2016-06-24" @default.
- W350320609 creator A5002907035 @default.
- W350320609 creator A5037961285 @default.
- W350320609 creator A5066264380 @default.
- W350320609 creator A5072519981 @default.
- W350320609 date "1998-01-01" @default.
- W350320609 modified "2023-09-23" @default.
- W350320609 title "Numerical Simulations of an Unsteady Rocket Launch from the AH-64D Apache Longbow Helicopter" @default.
- W350320609 hasPublicationYear "1998" @default.
- W350320609 type Work @default.
- W350320609 sameAs 350320609 @default.
- W350320609 citedByCount "0" @default.
- W350320609 crossrefType "journal-article" @default.
- W350320609 hasAuthorship W350320609A5002907035 @default.
- W350320609 hasAuthorship W350320609A5037961285 @default.
- W350320609 hasAuthorship W350320609A5066264380 @default.
- W350320609 hasAuthorship W350320609A5072519981 @default.
- W350320609 hasConcept C127413603 @default.
- W350320609 hasConcept C146978453 @default.
- W350320609 hasConcept C1633027 @default.
- W350320609 hasConcept C187878255 @default.
- W350320609 hasConcept C5804382 @default.
- W350320609 hasConceptScore W350320609C127413603 @default.
- W350320609 hasConceptScore W350320609C146978453 @default.
- W350320609 hasConceptScore W350320609C1633027 @default.
- W350320609 hasConceptScore W350320609C187878255 @default.
- W350320609 hasConceptScore W350320609C5804382 @default.
- W350320609 hasLocation W3503206091 @default.
- W350320609 hasOpenAccess W350320609 @default.
- W350320609 hasPrimaryLocation W3503206091 @default.
- W350320609 hasRelatedWork W1887629942 @default.
- W350320609 hasRelatedWork W1892270166 @default.
- W350320609 hasRelatedWork W1982298034 @default.
- W350320609 hasRelatedWork W1986014222 @default.
- W350320609 hasRelatedWork W2002098537 @default.
- W350320609 hasRelatedWork W2018098609 @default.
- W350320609 hasRelatedWork W2092665669 @default.
- W350320609 hasRelatedWork W2110355859 @default.
- W350320609 hasRelatedWork W2121270266 @default.
- W350320609 hasRelatedWork W2267964772 @default.
- W350320609 hasRelatedWork W2315153409 @default.
- W350320609 hasRelatedWork W2330581636 @default.
- W350320609 hasRelatedWork W2377492978 @default.
- W350320609 hasRelatedWork W240206498 @default.
- W350320609 hasRelatedWork W2791636420 @default.
- W350320609 hasRelatedWork W2962144629 @default.
- W350320609 hasRelatedWork W337130534 @default.
- W350320609 hasRelatedWork W772400364 @default.
- W350320609 hasRelatedWork W85013064 @default.
- W350320609 hasRelatedWork W315252303 @default.
- W350320609 isParatext "false" @default.
- W350320609 isRetracted "false" @default.
- W350320609 magId "350320609" @default.
- W350320609 workType "article" @default.