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020 _a9783662613283
_9978-3-662-61328-3
024 7 _a10.1007/978-3-662-61328-3
_2doi
050 4 _aTA357-359
072 7 _aTGMF
_2bicssc
072 7 _aTEC009070
_2bisacsh
072 7 _aTGMF
_2thema
082 0 4 _a620.1064
_223
100 1 _aHirschel, Ernst Heinrich.
_eauthor.
_4aut
_4http://id.loc.gov/vocabulary/relators/aut
_946892
245 1 0 _aSeparated and Vortical Flow in Aircraft Wing Aerodynamics
_h[electronic resource] :
_bBasic Principles and Unit Problems /
_cby Ernst Heinrich Hirschel, Arthur Rizzi, Christian Breitsamter, Werner Staudacher.
250 _a1st ed. 2021.
264 1 _aBerlin, Heidelberg :
_bSpringer Berlin Heidelberg :
_bImprint: Springer,
_c2021.
300 _aXV, 456 p. 285 illus., 111 illus. in color.
_bonline resource.
336 _atext
_btxt
_2rdacontent
337 _acomputer
_bc
_2rdamedia
338 _aonline resource
_bcr
_2rdacarrier
347 _atext file
_bPDF
_2rda
505 0 _aIntroduction -- Separation: Some Relevant Boundary-Layer Properties, Interaction Issues, and Drag -- Elements of Vortex Theory -- The Local Vorticity Content of a Shear Layer -- The Matter of Discrete Euler Solutions for Lifting Wings -- About the Kutta Condition -- Topology of Skin-Friction and Velocity Fields -- Large Aspect-Ratio Wing Flow -- Particular Flow Problems of Large Aspect-Ratio Wings -- Small Aspect-Ratio Delta-Type Wing Flow -- Selected Flow Problems of Small Aspect-Ratio Delta-Type Wings -- Solutions of the Problems.
520 _aFluid mechanical aspects of separated and vortical flow in aircraft wing aerodynamics are treated. The focus is on two wing classes: (1) large aspect-ratio wings and (2) small aspect-ratio delta-type wings. Aerodynamic design issues in general are not dealt with. Discrete numerical simulation methods play a progressively larger role in aircraft design and development. Accordingly, in the introduction to the book the different mathematical models are considered, which underlie the aerodynamic computation methods (panel methods, RANS and scale-resolving methods). Special methods are the Euler methods, which as rather inexpensive methods embrace compressibility effects and also permit to describe lifting-wing flow. The concept of the kinematically active and inactive vorticity content of shear layers gives insight into many flow phenomena, but also, with the second break of symmetry---the first one is due to the Kutta condition---an explanation of lifting-wing flow fields. The prerequisite is an extended definition of separation: “flow-off separation” at sharp trailing edges of class (1) wings and at sharp leading edges of class (2) wings. The vorticity-content concept, with a compatibility condition for flow-off separation at sharp edges, permits to understand the properties of the evolving trailing vortex layer and the resulting pair of trailing vortices of class (1) wings. The concept also shows that Euler methods at sharp delta or strake leading edges of class (2) wings can give reliable results. Three main topics are treated: 1) Basic Principles are considered first: boundary-layer flow, vortex theory, the vorticity content of shear layers, Euler solutions for lifting wings, the Kutta condition in reality and the topology of skin-friction and velocity fields. 2) Unit Problems treat isolated flow phenomena of the two wing classes. Capabilities of panel and Euler methods are investigated. One Unit Problem is the flow past the wing of the NASA Common Research Model. Other Unit Problems concern the lee-side vortex system appearing at the Vortex-Flow Experiment 1 and 2 sharp- and blunt-edged delta configurations, at a delta wing with partly round leading edges, and also at the Blunt Delta Wing at hypersonic speed. 3) Selected Flow Problems of the two wing classes. In short sections practical design problems are discussed. The treatment of flow past fuselages, although desirable, was not possible in the frame of this book.
650 0 _aFluid mechanics.
_92810
650 0 _aComputational intelligence.
_97716
650 1 4 _aEngineering Fluid Dynamics.
_946893
650 2 4 _aComputational Intelligence.
_97716
700 1 _aRizzi, Arthur.
_eauthor.
_4aut
_4http://id.loc.gov/vocabulary/relators/aut
_946894
700 1 _aBreitsamter, Christian.
_eauthor.
_4aut
_4http://id.loc.gov/vocabulary/relators/aut
_946895
700 1 _aStaudacher, Werner.
_eauthor.
_4aut
_4http://id.loc.gov/vocabulary/relators/aut
_946896
710 2 _aSpringerLink (Online service)
_946897
773 0 _tSpringer Nature eBook
776 0 8 _iPrinted edition:
_z9783662613269
776 0 8 _iPrinted edition:
_z9783662613276
856 4 0 _uhttps://doi.org/10.1007/978-3-662-61328-3
912 _aZDB-2-ENG
912 _aZDB-2-SXE
942 _cEBK
999 _c77938
_d77938