FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3197747601> ?p ?o ?g. }

• W3197747601 abstract "We numerically investigate stalling flow around a static airfoil at high Reynolds numbers using the Reynolds-averaged Navier–Stokes equations (RANS) closed with the Spalart–Allmaras turbulence model. An arclength continuation method allows to identify three branches of steady solutions, which form a characteristic inverted S-shaped curve as the angle of attack is varied. Global stability analyses of these steady solutions reveal the existence of two unstable modes: a low-frequency mode, which is unstable for angles of attack in the stall region, and a high-frequency vortex shedding mode, which is unstable at larger angles of attack. The low-frequency stall mode bifurcates several times along the three steady solutions: there are two Hopf bifurcations, two solutions with a two-fold degenerate eigenvalue and two saddle-node bifurcations. This low-frequency mode induces a cyclic flow separation and reattachment along the airfoil. Unsteady simulations of the RANS equations confirm the existence of large-amplitude low-frequency periodic solutions that oscillate around the three steady solutions in phase space. An analysis of the periodic solutions in the phase space shows that, when decreasing the angle of attack, the low-frequency periodic solution collides with the unstable steady middle-branch solution and thus disappears via a homoclinic bifurcation of periodic orbits. Finally, a one-equation nonlinear stall model is introduced to reveal that the disappearance of the limit cycle, when increasing the angle of attack, is due to a saddle-node bifurcation of periodic orbits." @default.
• W3197747601 created "2021-09-13" @default.
• W3197747601 creator A5001309476 @default.
• W3197747601 creator A5005674562 @default.
• W3197747601 creator A5008733654 @default.
• W3197747601 creator A5065641030 @default.
• W3197747601 creator A5089366495 @default.
• W3197747601 date "2021-10-04" @default.
• W3197747601 modified "2023-09-25" @default.
• W3197747601 title "Bifurcation scenario for a two-dimensional static airfoil exhibiting trailing edge stall" @default.
• W3197747601 cites W1506690472 @default.
• W3197747601 cites W1596851224 @default.
• W3197747601 cites W1644612354 @default.
• W3197747601 cites W1651782825 @default.
• W3197747601 cites W1940475011 @default.
• W3197747601 cites W1967374729 @default.
• W3197747601 cites W1972361310 @default.
• W3197747601 cites W1975461388 @default.
• W3197747601 cites W1979564765 @default.
• W3197747601 cites W1979651344 @default.
• W3197747601 cites W1979787043 @default.
• W3197747601 cites W1980191152 @default.
• W3197747601 cites W1995191703 @default.
• W3197747601 cites W2035842523 @default.
• W3197747601 cites W2038995844 @default.
• W3197747601 cites W2048765168 @default.
• W3197747601 cites W2048776317 @default.
• W3197747601 cites W2048918629 @default.
• W3197747601 cites W2054665146 @default.
• W3197747601 cites W2055297022 @default.
• W3197747601 cites W2060393863 @default.
• W3197747601 cites W2061315674 @default.
• W3197747601 cites W2062161288 @default.
• W3197747601 cites W2070299075 @default.
• W3197747601 cites W2070482713 @default.
• W3197747601 cites W2070537673 @default.
• W3197747601 cites W2075895609 @default.
• W3197747601 cites W2076682561 @default.
• W3197747601 cites W2079371292 @default.
• W3197747601 cites W2081934341 @default.
• W3197747601 cites W2086891985 @default.
• W3197747601 cites W2115052748 @default.
• W3197747601 cites W2119522320 @default.
• W3197747601 cites W2121324809 @default.
• W3197747601 cites W2126105956 @default.
• W3197747601 cites W2142548199 @default.
• W3197747601 cites W2150805640 @default.
• W3197747601 cites W2154818081 @default.
• W3197747601 cites W2163898120 @default.
• W3197747601 cites W2165937124 @default.
• W3197747601 cites W2171303908 @default.
• W3197747601 cites W2171595452 @default.
• W3197747601 cites W2172008377 @default.
• W3197747601 cites W2212720346 @default.
• W3197747601 cites W2315449476 @default.
• W3197747601 cites W2330394155 @default.
• W3197747601 cites W2500759160 @default.
• W3197747601 cites W2529451642 @default.
• W3197747601 cites W2614922060 @default.
• W3197747601 cites W2788283920 @default.
• W3197747601 cites W2795624184 @default.
• W3197747601 cites W2802019879 @default.
• W3197747601 cites W2907716705 @default.
• W3197747601 cites W2974728063 @default.
• W3197747601 cites W2981777379 @default.
• W3197747601 cites W3085243743 @default.
• W3197747601 cites W3094340780 @default.
• W3197747601 cites W3111556899 @default.
• W3197747601 cites W4245037559 @default.
• W3197747601 cites W770942932 @default.
• W3197747601 cites W805450026 @default.
• W3197747601 cites W836592002 @default.
• W3197747601 doi "https://doi.org/10.1017/jfm.2021.767" @default.
• W3197747601 hasPublicationYear "2021" @default.
• W3197747601 type Work @default.
• W3197747601 sameAs 3197747601 @default.
• W3197747601 citedByCount "6" @default.
• W3197747601 countsByYear W31977476012022 @default.
• W3197747601 countsByYear W31977476012023 @default.
• W3197747601 crossrefType "journal-article" @default.
• W3197747601 hasAuthorship W3197747601A5001309476 @default.
• W3197747601 hasAuthorship W3197747601A5005674562 @default.
• W3197747601 hasAuthorship W3197747601A5008733654 @default.
• W3197747601 hasAuthorship W3197747601A5065641030 @default.
• W3197747601 hasAuthorship W3197747601A5089366495 @default.
• W3197747601 hasBestOaLocation W31977476012 @default.
• W3197747601 hasConcept C112124176 @default.
• W3197747601 hasConcept C121332964 @default.
• W3197747601 hasConcept C13393347 @default.
• W3197747601 hasConcept C134306372 @default.
• W3197747601 hasConcept C158622935 @default.
• W3197747601 hasConcept C182748727 @default.
• W3197747601 hasConcept C196558001 @default.
• W3197747601 hasConcept C2781349735 @default.
• W3197747601 hasConcept C32526432 @default.
• W3197747601 hasConcept C33923547 @default.
• W3197747601 hasConcept C527307 @default.
• W3197747601 hasConcept C57879066 @default.
• W3197747601 hasConcept C5804382 @default.
• W3197747601 hasConcept C62520636 @default.

• next