Computation of Steady Two-dimensional Transonic Flows by an Integral Equation Method PDF Download

Author: Wandera Ogana
Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 374

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Author: Pradip Niyogi
Publisher: Springer
ISBN:
Category : Mathematics
Languages : en
Pages : 212

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Book Description

Author: Sunil Kumar Jain
Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 140

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Book Description

Author: Richard M. Beam
Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 34

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 34

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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:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 700

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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Author: James T. Howlett
Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 44

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Author: Satya N. Atluri
Publisher: AIAA
ISBN: 9781600863998
Category : Aerodynamics
Languages : en
Pages : 580

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Book Description

Author: John Anthony Gear
Publisher:
ISBN: 9780642111173
Category : Aerodynamics, Transonic
Languages : en
Pages : 10

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Book Description
The unsteady transonic small perturbation differential equation is converted into an integrodifferential equation by application of the classical Green's function method. It is shown that no contribution form sock waves explicitly appears in this integral equation, due to the shock capturing properties of the Green's function method. After assuming that the motion consists of small infinitesimal perturbations around a thin nearly-planar body, a simplified integral equation for the streamwise velocity component is obtained, which is suitable for fast numerical computations. Keywords: Unsteady flow; Transonic flow; Three-dimensional flow. (Australia).