Mathematical Methods for the Aerodynamic Design of Turbomachinery Blade Cascades for High Subsonic and Transonic Flow PDF Download
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Author: George Frederick Dyer
Publisher:
ISBN:
Category :
Languages : en
Pages : 394
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Book Description
Author: George Frederick Dyer
Publisher:
ISBN:
Category :
Languages : en
Pages : 394
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Author: George Frederick Dyer
Publisher:
ISBN:
Category :
Languages : en
Pages : 197
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Book Description
Author: Naixing Chen
Publisher: John Wiley & Sons
ISBN: 0470825014
Category : Science
Languages : en
Pages : 448
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Book Description
Computational Fluid Dynamics (CFD) is now an essential and effective tool used in the design of all types of turbomachine, and this topic constitutes the main theme of this book. With over 50 years of experience in the field of aerodynamics, Professor Naixing Chen has developed a wide range of numerical methods covering almost the entire spectrum of turbomachinery applications. Moreover, he has also made significant contributions to practical experiments and real-life designs. The book focuses on rigorous mathematical derivation of the equations governing flow and detailed descriptions of the numerical methods used to solve the equations. Numerous applications of the methods to different types of turbomachine are given and, in many cases, the numerical results are compared to experimental measurements. These comparisons illustrate the strengths and weaknesses of the methods – a useful guide for readers. Lessons for the design of improved blading are also indicated after many applications. Presents real-world perspective to the past, present and future concern in turbomachinery Covers direct and inverse solutions with theoretical and practical aspects Demonstrates huge application background in China Supplementary instructional materials are available on the companion website Aerothermodynamics of Turbomachinery: Analysis and Design is ideal for senior undergraduates and graduates studying in the fields of mechanics, energy and power, and aerospace engineering; design engineers in the business of manufacturing compressors, steam and gas turbines; and research engineers and scientists working in the areas of fluid mechanics, aerodynamics, and heat transfer. Supplementary lecture materials for instructors are available at www.wiley.com/go/chenturbo
Author: Institution of Mechanical Engineers (Great Britain). Power Industries Division
Publisher:
ISBN:
Category : Thermodynamics
Languages : en
Pages : 294
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Author: Miloš Růžička
Publisher:
ISBN:
Category :
Languages : en
Pages : 121
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Author: Majīd Aḥmadī
Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 0
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Book Description
An aerodynamic inverse design method for turbomachinery cascades is presented and is implemented in a finite volume method. In this design method, the mass-averaged swirl schedule and the blade thickness distribution are prescribed. The design method then provides the blade shape that would accomplish this loading by imposing the appropriate pressure jump across the blades and satisfying the blade boundary condition, the latter implies that the flow is tangent to the blade surfaces. This inverse design method is implemented using a cell-vertex finite volume method which solves the Euler equations on unstructured triangular meshes. A five-stage Runge-Kutta pseudo-time integration scheme is used to march the solution to steady state. Non-linear artificial viscosity is added to eliminate pressure-velocity decoupling and to capture shocks. Convergence is accelerated using local time stepping and implicit residual smoothing. The boundary conditions at inflow and outflow are based on the method of characteristics. The finite volume discretization method is validated against some standard cases of internal flow as well as linear cascades. The inverse design method is first validated for three different cascades namely, a parabolic cascade, a compressor cascade and a turbine inlet guide vane. It is then used to obtain a shock-free design of an impulse transonic cascade and of the ONERA transonic compressor cascade. A parametric study has shown that the blade profile is rather sensitive to the prescribed loading distributions and that, in most cases, a smooth loading distribution results in a shock-free cascade design.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Miloš Růžička
Publisher:
ISBN:
Category :
Languages : en
Pages : 121
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704
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Book Description
Author: George R. Costello
Publisher:
ISBN:
Category : Cascades (Fluid dynamics)
Languages : en
Pages : 30
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Book Description
If the prescribed velocity distribution is not theoretically attainable, the method gives a way of modifying the distribution so as to obtain a blade shape.
