Methods of Designing Cascade Blades with Prescribed Velocity Distributions in Compressible Potential Flows PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Methods of Designing Cascade Blades with Prescribed Velocity Distributions in Compressible Potential Flows PDF full book. Access full book title Methods of Designing Cascade Blades with Prescribed Velocity Distributions in Compressible Potential Flows by George R. Costello. Download full books in PDF and EPUB format.
Author: George R. Costello
Publisher:
ISBN:
Category : Cascades (Fluid dynamics)
Languages : en
Pages : 30
Get Book Here
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.
Author: George R. Costello
Publisher:
ISBN:
Category : Cascades (Fluid dynamics)
Languages : en
Pages : 30
Get Book Here
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.
Author: George R. Costello
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 11
Get Book Here
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.
Author: George R. Costello
Publisher:
ISBN:
Category : Aerofoils
Languages : en
Pages : 56
Get Book Here
Book Description
The computational procedure includes several ways of adjusting the prescribed velocity to satisfy the restriction imposed by the method. Tables of coefficients are given for evaluating the necessary integrals, including the determination of the harmonic conjugate. Numerical examples are included.
Author: Arthur G. Hansen
Publisher:
ISBN:
Category : Cascades (Fluid dynamics)
Languages : en
Pages : 51
Get Book Here
Book Description
A numerical procedure based on conformal-mappng theory is presented for design of an airfoil cascade with prescribed velocity distribution in incompressible flow. A set of tables is included as a guide for computations, and a numerical example is presented to illustrate specific solutions to problems arising in design of a cascade by this method.
Author: John Stanitz
Publisher: Рипол Классик
ISBN: 5881585658
Category : History
Languages : en
Pages : 79
Get Book Here
Book Description
An approximate blade-element design method is developed for compressible or incompressible nonviscous flow in high-solidity stators or rotors of axial-, radial-, or mixed-flow compressors, turbines, or two-dimensinal cascades. The method is based upon channel-type flow between blade elements on a specified surface of revolution that lies between the hub and shroud (casing) and is concentric with the axis of the compressor turbine. The blade elements is designed for prescribed velocities along the blade-element profile as a function of distance along meridonal lines on the surface of revolution. Two numerical examples are presented: (1) the design of a blade-element profile for a plane two-dimensional cascade in compressible flow with the prescribed velocities along the profiles; and (2) the design of a blade element for the impeller of a mixed-flow centrifugal compressor.
Author: George R. Costello
Publisher:
ISBN:
Category :
Languages : en
Pages : 49
Get Book Here
Book Description
Author: Alois T. Sutor
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 706
Get Book Here
Book Description
Analytical expressions are derived to show the geometric, thermodynamic, and aerodynamic relations among compressor, turbine, and exhaust nozzle for a gas-turbine engine. For a known compressor performance map, a matching method is described to show some of the design compromises that must be made when the components are to be combined into a turbine-propeller engine. A method of predicting engine performance for a range of operating conditions from known component maps is presented. An illustrative example of the matching method and the performance analysis is presented, showing some of the practical limitations of engine operation.
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1026
Get Book Here
Book Description
Author: George G. Edwards
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 658
Get Book Here
Book Description
An investigation has been conducted at speeds up to a Mach number of 0.90 to determine the effects of operating propellers on the longitudinal characteristics of a four-engine tractor airplane configuration having a 40 degrees swept wing with an aspect ratio of 10. Results of wind-tunnel tests of a model representing such an airplane configuration (see NACA TN 3789) show that these effects are of most concern in the low-speed high-thrust flight regime. In the present report the low-speed data are analyzed to determine the source of the various effects and to indicate how the adverse effects can be reduced, and the high-speed data are discussed primarily from the standpoint of Mach number effects. The analysis of the low-speed data indicates that the large variations of longitudinal stabil.itywith angle of attack resulted primarily from passage of the tail into and out of the slipstream. The slipstream also created large lift increments on the wing, particularly with flaps deflected, which resulted in increases in stability (with increasing thrust coefficient) from the outboard propeller and decreases in stability from the inboard propeller. It was concluded that the longitudinal stabiltty characteristics of the model couldbe improved by moving the nacelles outward, increasing the tail height, and reducing the tail span.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 620
Get Book Here
Book Description
