Author: Liu Gao-lianPublisher:
ISBN:
Category :
Languages : en
Pages : 9
Book Description
Unsteady Transonic Flow with Shocks Around Oscillating Airfoils and Cascades
Author: Liu Gao-lianUnsteady Transonic Flow on Airfoils and in Cascades
Author: A Linear Aerodynamic Analysis for Unsteady Transonic Cascades
Author: Joseph M. VerdonPublisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 84
Book Description
A potential flow analysis to predict unsteady airloads produced by the vibrations of turbomachinery blades operating at transonic Mach numbers is presented. The unsteady aerodynamic model includes the effects of blade geometry, finite mean pressure variation across the blade row, high frequency blade motion, and shock motion within the framework of a linearized, frequency domain formulation. The unsteady equations are solved implicit, least squares, finite difference approximation which is applicable on arbitrary grids. A numerical solution for the entire unsteady field is determined by matching a solution determined on a rectilinear type cascade mesh, which covers an extended blade passage region, to a solution determined on a detailed polar type local mesh, which covers and extends well beyond the supersonic region(s) adjacent to a blade surface. Cascades of double circular arc and flat plate blades demonstrate the unsteady analysis, and partially illustrate the effects of blade geometry, inlet Mach number, blade vibration frequency and shock motion on unsteady response.
Steady and Unsteady Flow in a Transonic Cascade with Shocks
Author: I. EversInverse Problems in Engineering Mechanics
Author: Masataka TanakaPublisher: Elsevier
ISBN: 008053516X
Category : Technology & Engineering
Languages : en
Pages : 635
Book Description
Inverse problems can be found in many topics of engineering mechanics. There are many successful applications in the fields of inverse problems (non-destructive testing and characterization of material properties by ultrasonic or X-ray techniques, thermography, etc.). Generally speaking, the inverse problems are concerned with the determination of the input and the characteristics of a mechanical system from some of the output from the system. Mathematically, such problems are ill-posed and have to be overcome through development of new computational schemes, regularization techniques, objective functionals, and experimental procedures. Seventy-two papers were presented at the International Symposium on Inverse Problems in Mechanics (ISIP '98) held in March of 1998 in Nagano, where recent developments in the inverse problems in engineering mechanics and related topics were discussed. The main themes were: mathematical and computational aspects of the inverse problems, parameter or system identification, shape determination, sensitivity analysis, optimization, material property characterization, ultrasonic non-destructive testing, elastodynamic inverse problems, thermal inverse problems, and other engineering applications.
Scientific and Technical Aerospace Reports
Author: Unsteady Transonic Flow
Author: Mårten LandahlPublisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 152
Book Description
Unsteady Transonic Aerodynamics
Author: David NixonPublisher:
ISBN:
Category : Science
Languages : en
Pages : 410
Book Description
This volume complements Transonic aerodynamics (v.81 in the series) which is concerned with steady flow. This is the only book to address the subject of unsteady transonic aerodynamics, a field much different from steady aerodynamics. The most pronounced difference is the complex shock wave motions
A Modern Course in Aeroelasticity
Author: Robert ClarkPublisher: Springer Science & Business Media
ISBN: 1402021062
Category : Technology & Engineering
Languages : en
Pages : 770
Book Description
In this new edition, the fundamental material on classical linear aeroelasticity has been revised. Also new material has been added describing recent results on the research frontiers dealing with nonlinear aeroelasticity as well as major advances in the modelling of unsteady aerodynamic flows using the methods of computational fluid dynamics and reduced order modeling techniques. New chapters on aeroelasticity in turbomachinery and aeroelasticity and the latter chapters for a more advanced course, a graduate seminar or as a reference source for an entrée to the research literature.
Proceedings
Author: United States. National Congress of Applied MechanicsPublisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 566
Book Description