Author: National Aeronautics and Space Adm Nasa
Publisher:
ISBN: 9781730977305
Category :
Languages : en
Pages : 96
Book Description
An off-design axial-flow compressor code is presented and is available from COSMIC for predicting the aerodynamic performance maps of fans and compressors. Steady axisymmetric flow is assumed and the aerodynamic solution reduces to solving the two-dimensional flow field in the meridional plane. A streamline curvature method is used for calculating this flow-field outside the blade rows. This code allows for bleed flows and the first five stators can be reset for each rotational speed, capabilities which are necessary for large multistage compressors. The accuracy of the off-design performance predictions depend upon the validity of the flow loss and deviation correlation models. These empirical correlations for the flow loss and deviation are used to model the real flow effects and the off-design code will compute through small reverse flow regions. The input to this off-design code is fully described and a user's example case for a two-stage fan is included with complete input and output data sets. Also, a comparison of the off-design code predictions with experimental data is included which generally shows good agreement. Schmidt, James F. Unspecified Center...
Off-Design Computer Code for Calculating the Aerodynamic Performance of Axial-Flow Fans and Compressors
Author: National Aeronautics and Space Adm Nasa
Publisher:
ISBN: 9781730977305
Category :
Languages : en
Pages : 96
Book Description
An off-design axial-flow compressor code is presented and is available from COSMIC for predicting the aerodynamic performance maps of fans and compressors. Steady axisymmetric flow is assumed and the aerodynamic solution reduces to solving the two-dimensional flow field in the meridional plane. A streamline curvature method is used for calculating this flow-field outside the blade rows. This code allows for bleed flows and the first five stators can be reset for each rotational speed, capabilities which are necessary for large multistage compressors. The accuracy of the off-design performance predictions depend upon the validity of the flow loss and deviation correlation models. These empirical correlations for the flow loss and deviation are used to model the real flow effects and the off-design code will compute through small reverse flow regions. The input to this off-design code is fully described and a user's example case for a two-stage fan is included with complete input and output data sets. Also, a comparison of the off-design code predictions with experimental data is included which generally shows good agreement. Schmidt, James F. Unspecified Center...
Publisher:
ISBN: 9781730977305
Category :
Languages : en
Pages : 96
Book Description
An off-design axial-flow compressor code is presented and is available from COSMIC for predicting the aerodynamic performance maps of fans and compressors. Steady axisymmetric flow is assumed and the aerodynamic solution reduces to solving the two-dimensional flow field in the meridional plane. A streamline curvature method is used for calculating this flow-field outside the blade rows. This code allows for bleed flows and the first five stators can be reset for each rotational speed, capabilities which are necessary for large multistage compressors. The accuracy of the off-design performance predictions depend upon the validity of the flow loss and deviation correlation models. These empirical correlations for the flow loss and deviation are used to model the real flow effects and the off-design code will compute through small reverse flow regions. The input to this off-design code is fully described and a user's example case for a two-stage fan is included with complete input and output data sets. Also, a comparison of the off-design code predictions with experimental data is included which generally shows good agreement. Schmidt, James F. Unspecified Center...
Off-design Computer Code for Calculating the Aerodynamic Performance of Axial-flow Fans and Compressors
Author: James F. Schmidt
Publisher:
ISBN:
Category :
Languages : en
Pages : 98
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 98
Book Description
Design Geometry and Design/off-design Performance Computer Codes for Compressors and Turbines
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 20
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 308
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 308
Book Description
Design Geometry and Design/Off-Design Performance Computer Codes for Compressors and Turbines
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781725639935
Category :
Languages : en
Pages : 34
Book Description
This report summarizes some NASA Lewis (i.e., government owned) computer codes capable of being used for airbreathing propulsion system studies to determine the design geometry and to predict the design/off-design performance of compressors and turbines. These are not CFD codes; velocity-diagram energy and continuity computations are performed fore and aft of the blade rows using meanline, spanline, or streamline analyses. Losses are provided by empirical methods. Both axial-flow and radial-flow configurations are included. Glassman, Arthur J. Unspecified Center NASA-CR-198433, NAS 1.26:198433, E-10041, NIPS-95-06493 NAG3-1165; RTOP 505-69-50...
Publisher: Createspace Independent Publishing Platform
ISBN: 9781725639935
Category :
Languages : en
Pages : 34
Book Description
This report summarizes some NASA Lewis (i.e., government owned) computer codes capable of being used for airbreathing propulsion system studies to determine the design geometry and to predict the design/off-design performance of compressors and turbines. These are not CFD codes; velocity-diagram energy and continuity computations are performed fore and aft of the blade rows using meanline, spanline, or streamline analyses. Losses are provided by empirical methods. Both axial-flow and radial-flow configurations are included. Glassman, Arthur J. Unspecified Center NASA-CR-198433, NAS 1.26:198433, E-10041, NIPS-95-06493 NAG3-1165; RTOP 505-69-50...
Monthly Catalog of United States Government Publications
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1388
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1388
Book Description
41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit 10-13 July 2005, Tucson, Arizona: 05-4000 - 05-4049
Author:
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 552
Book Description
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 552
Book Description
The Software Catalog
Author: MENU Staff
Publisher: Elsevier Science & Technology
ISBN:
Category : Science
Languages : en
Pages : 726
Book Description
Publisher: Elsevier Science & Technology
ISBN:
Category : Science
Languages : en
Pages : 726
Book Description
Aerodynamic Design of Axial Flow Compressors
Author: Robert O. Bullock
Publisher:
ISBN:
Category : Axial flow compressors
Languages : en
Pages : 552
Book Description
Publisher:
ISBN:
Category : Axial flow compressors
Languages : en
Pages : 552
Book Description
Government Reports Announcements & Index
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 660
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 660
Book Description