An Analysis of Transonic Viscous/inviscid Interactions on Axisymmetric Bodies with Solid Strings Or Real Plumes PDF Download
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Author: Steven F. Yaros
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 178
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Book Description
Author: Steven F. Yaros
Publisher:
ISBN:
Category : Aerodynamic load
Languages : en
Pages : 178
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Book Description
Author: Tracy Donegan
Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 60
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Book Description
Author: James T. Howlett
Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 44
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Book Description
Author: Ing-Jer Chiou
Publisher:
ISBN:
Category :
Languages : en
Pages : 156
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Book Description
Author: James T. Howlett
Publisher:
ISBN:
Category :
Languages : en
Pages : 44
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781723187162
Category :
Languages : en
Pages : 128
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Book Description
The viscous/inviscid interaction over transonic airfoils with and without suction is studied. The streamline angle at the edge of the boundary layer is used to couple the viscous and inviscid flows. The potential flow equations are solved for the inviscid flow field. In the shock region, the Euler equations are solved using the method of integral relations. For this, the potential flow solution is used as the initial and boundary conditions. An integral method is used to solve the laminar boundary-layer equations. Since both methods are integral methods, a continuous interaction is allowed between the outer inviscid flow region and the inner viscous flow region. To avoid the Goldstein singularity near the separation point the laminar boundary-layer equations are derived in an inverse form to obtain solution for the flows with small separations. The displacement thickness distribution is specified instead of the usual pressure distribution to solve the boundry-layer equations. The Euler equations are solved for the inviscid flow using the finite volume technique and the coupling is achieved by a surface transpiration model. A method is developed to apply a minimum amount of suction that is required to have an attached flow on the airfoil. The turbulent boundary layer equations are derived using the bi-logarithmic wall law for mass transfer. The results are found to be in good agreement with available experimental data and with the results of other computational methods. Vemuru, C. S. and Tiwari, S. N. Unspecified Center AIRFOILS; BOUNDARY VALUE PROBLEMS; FINITE VOLUME METHOD; SUCTION; TRANSONIC FLOW; BOUNDARY CONDITIONS; FLOW DISTRIBUTION; FLOW VELOCITY; INVISCID FLOW; LAMINAR BOUNDARY LAYER; TURBULENT BOUNDARY LAYER; VISCOUS FLOW...
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 54
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Book Description
Author: J. J. Chattot
Publisher: Springer
ISBN: 9401798257
Category : Science
Languages : en
Pages : 625
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Book Description
This book covers classical and modern aerodynamics, theories and related numerical methods, for senior and first-year graduate engineering students, including: -The classical potential (incompressible) flow theories for low speed aerodynamics of thin airfoils and high and low aspect ratio wings. - The linearized theories for compressible subsonic and supersonic aerodynamics. - The nonlinear transonic small disturbance potential flow theory, including supercritical wing sections, the extended transonic area rule with lift effect, transonic lifting line and swept or oblique wings to minimize wave drag. Unsteady flow is also briefly discussed. Numerical simulations based on relaxation mixed-finite difference methods are presented and explained. - Boundary layer theory for all Mach number regimes and viscous/inviscid interaction procedures used in practical aerodynamics calculations. There are also four chapters covering special topics, including wind turbines and propellers, airplane design, flow analogies and hypersonic (rotational) flows. A unique feature of the book is its ten self-tests and their solutions as well as an appendix on special techniques of functions of complex variables, method of characteristics and conservation laws and shock waves. The book is the culmination of two courses taught every year by the two authors for the last two decades to seniors and first-year graduate students of aerospace engineering at UC Davis.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1572
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Author:
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 132
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