Separated Vortex Flow Over Slender Wings Between Side Walls

Separated Vortex Flow Over Slender Wings Between Side Walls PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Separated Vortex Flow Over Slender Wings Between Side Walls

Separated Vortex Flow Over Slender Wings Between Side Walls PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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On the Vortex Associated with Flow Separation from a Leading Edge of a Slender Wing

On the Vortex Associated with Flow Separation from a Leading Edge of a Slender Wing PDF Author: M.G. Hall
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 702

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Analytical Studies of Separated Vortex Flow on Highly Swept Wings

Analytical Studies of Separated Vortex Flow on Highly Swept Wings PDF Author: John M. Kuhlman
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 72

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Wind Tunnel Wall Interference (January 1980-May 1988)

Wind Tunnel Wall Interference (January 1980-May 1988) PDF Author: Marie H. Tuttle
Publisher:
ISBN:
Category : Interference (Aerodynamics)
Languages : en
Pages : 96

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NASA Technical Memorandum

NASA Technical Memorandum PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 428

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Leeward Flow Over Delta Wings at Supersonic Speeds

Leeward Flow Over Delta Wings at Supersonic Speeds PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 54

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Separated and Vortical Flow in Aircraft Wing Aerodynamics

Separated and Vortical Flow in Aircraft Wing Aerodynamics PDF Author: Ernst Heinrich Hirschel
Publisher: Springer Nature
ISBN: 366261328X
Category : Technology & Engineering
Languages : en
Pages : 458

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Fluid 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.

A New Method to Calculate the Vortex Strength and Location of Slender Wings with Flow Separation

A New Method to Calculate the Vortex Strength and Location of Slender Wings with Flow Separation PDF Author: Dieter Kurt Nowak
Publisher:
ISBN:
Category :
Languages : en
Pages : 190

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Applied Mechanics Reviews

Applied Mechanics Reviews PDF Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 628

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