Matches in SemOpenAlex for { <https://semopenalex.org/work/W4317611145> ?p ?o ?g. }
Showing items 1 to 89 of
89
with 100 items per page.
- W4317611145 abstract "We investigate the instability coupling mechanisms between the shear layer and the wake for turbulent separated flows over a NACA 0012 airfoil at Reynolds number of $23, 000$ with the use of spectral proper orthogonal decomposition and the bispectral mode decomposition. The datasets are obtained from the large-eddy simulations in two configurations: two-dimensional (2D) and three-dimensional (3D) with spanwise periodicity. The 2D flow is characterized by the periodic vortex shedding from the shear layer and the convection of these vortices into the wake, resulting in a frequency spectrum that peaks at the natural shedding frequency and its harmonics. On the contrary, the 3D flow exhibits distinctive frequency contents for the shear layer and the wake with the presence of dominant frequency associated with the coupled coherent structures. Spectral proper orthogonal decomposition (SPOD) is used to examine the spatial and temporal coherent fluctuation for both the flows. The SPOD is also performed with a weighting matrix that highlights the shear layer where certain frequencies higher than dominant shedding frequency are promoted which marks the the shear layer physics in the 3D flow. The coupled coherent structures in the 2D and 3D flows have different self-driving mechanisms. The coupling mechanism in the 2D flow is observed to be governed largely by the interactions between the fundamental shedding frequency and its harmonics. For the 3D flow the self-driving mechanism that supports the emergence of coupled coherent structures is mainly attributed to mean flow interaction. We believe the identification of active paths of triadic interactions can serve as a building block toward the design of active flow control." @default.
- W4317611145 created "2023-01-21" @default.
- W4317611145 creator A5000136720 @default.
- W4317611145 creator A5081024858 @default.
- W4317611145 date "2023-01-19" @default.
- W4317611145 modified "2023-09-27" @default.
- W4317611145 title "Modal analysis for three-dimensional instability coupling mechanisms in turbulent wake flows over an airfoil" @default.
- W4317611145 cites W1633869374 @default.
- W4317611145 cites W1968814163 @default.
- W4317611145 cites W1999118061 @default.
- W4317611145 cites W2005136965 @default.
- W4317611145 cites W2014356541 @default.
- W4317611145 cites W2045946397 @default.
- W4317611145 cites W2090131196 @default.
- W4317611145 cites W2098545422 @default.
- W4317611145 cites W2112823474 @default.
- W4317611145 cites W2142220634 @default.
- W4317611145 cites W2163796906 @default.
- W4317611145 cites W2164033023 @default.
- W4317611145 cites W2166341713 @default.
- W4317611145 cites W2565264375 @default.
- W4317611145 cites W2567828174 @default.
- W4317611145 cites W2802019244 @default.
- W4317611145 cites W2963448313 @default.
- W4317611145 cites W2981080108 @default.
- W4317611145 cites W3004311099 @default.
- W4317611145 cites W3090325895 @default.
- W4317611145 cites W3099211663 @default.
- W4317611145 cites W3099803807 @default.
- W4317611145 cites W3110169625 @default.
- W4317611145 cites W3188913403 @default.
- W4317611145 doi "https://doi.org/10.2514/6.2023-1987" @default.
- W4317611145 hasPublicationYear "2023" @default.
- W4317611145 type Work @default.
- W4317611145 citedByCount "1" @default.
- W4317611145 countsByYear W43176111452023 @default.
- W4317611145 crossrefType "proceedings-article" @default.
- W4317611145 hasAuthorship W4317611145A5000136720 @default.
- W4317611145 hasAuthorship W4317611145A5081024858 @default.
- W4317611145 hasConcept C112124176 @default.
- W4317611145 hasConcept C121332964 @default.
- W4317611145 hasConcept C121448008 @default.
- W4317611145 hasConcept C135768490 @default.
- W4317611145 hasConcept C140820882 @default.
- W4317611145 hasConcept C165801399 @default.
- W4317611145 hasConcept C178760647 @default.
- W4317611145 hasConcept C178904275 @default.
- W4317611145 hasConcept C182748727 @default.
- W4317611145 hasConcept C188414643 @default.
- W4317611145 hasConcept C189360488 @default.
- W4317611145 hasConcept C196558001 @default.
- W4317611145 hasConcept C2777032711 @default.
- W4317611145 hasConcept C48939323 @default.
- W4317611145 hasConcept C57879066 @default.
- W4317611145 hasConcept C62520636 @default.
- W4317611145 hasConcept C74650414 @default.
- W4317611145 hasConceptScore W4317611145C112124176 @default.
- W4317611145 hasConceptScore W4317611145C121332964 @default.
- W4317611145 hasConceptScore W4317611145C121448008 @default.
- W4317611145 hasConceptScore W4317611145C135768490 @default.
- W4317611145 hasConceptScore W4317611145C140820882 @default.
- W4317611145 hasConceptScore W4317611145C165801399 @default.
- W4317611145 hasConceptScore W4317611145C178760647 @default.
- W4317611145 hasConceptScore W4317611145C178904275 @default.
- W4317611145 hasConceptScore W4317611145C182748727 @default.
- W4317611145 hasConceptScore W4317611145C188414643 @default.
- W4317611145 hasConceptScore W4317611145C189360488 @default.
- W4317611145 hasConceptScore W4317611145C196558001 @default.
- W4317611145 hasConceptScore W4317611145C2777032711 @default.
- W4317611145 hasConceptScore W4317611145C48939323 @default.
- W4317611145 hasConceptScore W4317611145C57879066 @default.
- W4317611145 hasConceptScore W4317611145C62520636 @default.
- W4317611145 hasConceptScore W4317611145C74650414 @default.
- W4317611145 hasLocation W43176111451 @default.
- W4317611145 hasOpenAccess W4317611145 @default.
- W4317611145 hasPrimaryLocation W43176111451 @default.
- W4317611145 hasRelatedWork W1895135386 @default.
- W4317611145 hasRelatedWork W2036172983 @default.
- W4317611145 hasRelatedWork W2094847139 @default.
- W4317611145 hasRelatedWork W2119135106 @default.
- W4317611145 hasRelatedWork W2268506129 @default.
- W4317611145 hasRelatedWork W2313124600 @default.
- W4317611145 hasRelatedWork W3000714798 @default.
- W4317611145 hasRelatedWork W3042134745 @default.
- W4317611145 hasRelatedWork W4225263299 @default.
- W4317611145 hasRelatedWork W4282939309 @default.
- W4317611145 isParatext "false" @default.
- W4317611145 isRetracted "false" @default.
- W4317611145 workType "article" @default.