Numerical Methods for Inviscid Steady and Unsteady Transonic Flows PDF Download
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Author: Chang Chai Kang
Publisher:
ISBN:
Category :
Languages : en
Pages : 390
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Book Description
Author: Chang Chai Kang
Publisher:
ISBN:
Category :
Languages : en
Pages : 390
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Book Description
Author: Arthur Rizzi
Publisher: Springer-Verlag
ISBN: 3663140083
Category : Science
Languages : de
Pages : 283
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Book Description
Author: Hans Jochen Wirz
Publisher: Hemisphere Pub
ISBN:
Category : Science
Languages : en
Pages : 424
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Book Description
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722972981
Category :
Languages : en
Pages : 108
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Book Description
Computations of viscous-inviscid interacting internal flowfields are presented for steady and unsteady quasi-one-dimensional (Q1D) test cases. The unsteady Q1D Euler equations are coupled with integral boundary-layer equations for unsteady, two-dimensional (planar or axisymmetric), turbulent flow over impermeable, adiabatic walls. The coupling methodology differs from that used in most techniques reported previously in that the above mentioned equation sets are written as a complete system and solved simultaneously; that is, the coupling is carried out directly through the equations as opposed to coupling the solutions of the different equation sets. Solutions to the coupled system of equations are obtained using both explicit and implicit numerical schemes for steady subsonic, steady transonic, and both steady and unsteady supersonic internal flowfields. Computed solutions are compared with measurements as well as Navier-Stokes and inverse boundary-layer methods. An analysis of the eigenvalues of the coefficient matrix associated with the quasi-linear form of the coupled system of equations indicates the presence of complex eigenvalues for certain flow conditions. It is concluded that although reasonable solutions can be obtained numerically, these complex eigenvalues contribute to the overall difficulty in obtaining numerical solutions to the coupled system of equations. Swafford, Timothy W. and Huddleston, David H. and Busby, Judy A. and Chesser, B. Lawrence Unspecified Center COMPUTATIONAL FLUID DYNAMICS; FLOW DISTRIBUTION; MACH NUMBER; NAVIER-STOKES EQUATION; NUMERICAL ANALYSIS; SUBSONIC FLOW; SUPERSONIC FLOW; TRANSONIC FLOW; UNSTEADY FLOW; VISCOUS FLOW; ADIABATIC CONDITIONS; AXISYMMETRIC FLOW; BOUNDARY LAYERS; EULER EQUATIONS OF MOTION; INTEGRAL EQUATIONS; INVISCID FLOW; TURBULENT FLOW; WALL TEMPERATURE...
Author: F. Angrand
Publisher: SIAM
ISBN: 9780898712001
Category : Science
Languages : en
Pages : 524
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Book Description
Author: Christopher J. Borland
Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 78
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Book Description
A bibliography of recent developments in unsteady transonic flow is presented. Papers have been divided into survey, experimental, and theoretical classifications, selected publications have been reviewed, and a more comprehensive set of publications has been listed and summarized in tabular form. Primary emphasis has been placed on numerical solution of unsteady transonic flow problems. Relevant steady methods have been included. (Author)
Author: Alain Dervieux
Publisher: Springer Science & Business Media
ISBN: 3322878759
Category : Technology & Engineering
Languages : en
Pages : 369
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Book Description
The numerical simulation of the Euler equations of Fluid Dynamics has been these past few years a challenging problem both for research scientists and aerospace engineers. The increasing interest of more realistic models such as the Euler equations originates in Aerodynamics and also Aerothermics where aerospace applications such as military aircrafts and also space vehicles require accurate and efficient Euler solvers (which can be extended to more complicated modelisations including non-equilibrium chemistry) for su personic and hypersonic flows at high angles of attack and Mach number regimes involving strong shocks and vorticity. This book contains the proceedings of the GAMM Workshop on the Numerical Simu lation of Compressible Euler Flows. that W:LS held at INRIA, Rocquencourt (France), on June 10-13, 1986. The purpose of this event was to compare in terms of accuracy and efficiency several codes for solving compressible inviscid, mainly steady, Euler flows. This workshop was a sequel of the GAMM workshop held in 1979 in Stockholm; this time, though, because of the present strong activity in numerical methods for the Euler equat.ions, the full-potential approach was not included. Since 1979, other Eulpr workshops have been organised, sev eral of them focussed on airfoil calculations; however, many recently derived methods were not presented at these workshops, because, among other reasons, the methods were not far enough developed, or had not been applied to flow problems of sufficient complexity. In fact, the 1986 GAMM workshop scored very high as regards to the novelty of methods.
Author: Richard E. Meyer
Publisher: Academic Press
ISBN: 1483264602
Category : Technology & Engineering
Languages : en
Pages : 356
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Book Description
Mathematics Research Center Symposium: Transonic, Shock, and Multidimensional Flows: Advances in Scientific Computing covers the lectures presented at a Symposium on Transonic, Shock, and Multidimensional Flows, held in Madison on May 13-15, 1981, under the auspices of the Mathematics Research Center of the University of Wisconsin. The book focuses on the advancements in the scientific computation of high-speed aerodynamic phenomena and related fluid motions. The selection first elaborates on computational fluid dynamics of airfoils and wings; shock-free configurations in two- and three-dimensional transonic flow; and steady-state solution of the Euler equations for transonic flow. Discussions focus on boundary conditions, convergence acceleration, indirect design of airfoils, and trailing edge and the boundary layer. The text then examines the calculation of transonic potential flow past three-dimensional configurations and remarks on the numerical solution of Tricomi-type equations. The manuscript ponders on the design and numerical analysis of vortex methods, shock calculations and the numerical solution of singular perturbation problems, tracking of interfaces for fluid flow, and transonic flows with viscous effects. Topics include numerical algorithm, difference approximation for scalar equations, boundary conditions, transonic flow in a tube, and governing equations. The selection is a dependable reference for researchers interested in transonic, shock, and multidimensional flows.
Author: Richard M. Beam
Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 34
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Book Description
Author: T. Cebeci
Publisher: Springer Science & Business Media
ISBN: 3662126109
Category : Technology & Engineering
Languages : en
Pages : 618
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Book Description
This volume contains revised and edited forms of papers presented at the Symposium on Numerical and Physical Aspects of Aerodynamic Flows, held at the California State University from 19 to 21 January 1981. The Symposium was organized to bring together leading research workers in those aspects of aerodynamic flows represented by the five parts and to fulfill the following purposes : first, to allow the presentation of technical papers which provide a basis for research workers to assess the present status of the subject and to formulate priorities for the future; and second, to promote informal discussion and thereby to assist the communication and develop ment of novel concepts. The format ofthe content ofthe volume is similar to that ofthe Symposium and addresses, in separate parts: Numerical Fluid Dynamics, Interactive Steady Boundary Layers, Singularities in Unsteady Boundary Layers, Transonic Flows, and Experimental Fluid Dynamics. The motivation for most of the work described relates to the internal and extern al aerodynamics of aircraft and to the development and appraisal of design methods based on numerical solutions to conservation equations in differential forms, for corresponding components. The chapters concerned with numerical fluid dynamics can, perhaps, be interpreted in a more general context, but the emphasis on boundary-Iayer flows and the special consideration oftransonic flows reflects the interest in external flows and the recent advances which have allowed the calculation methods to encompass transonic regions.
