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Axial And Centrifugal Compressor Mean Line Flow Analysis Method by Nasa Nasa Technical Reports Server (Ntrs), Paperback | Indigo Chapters

From Nasa Nasa Technical Reports Server (Ntrs)

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Axial And Centrifugal Compressor Mean Line Flow Analysis Method by Nasa Nasa Technical Reports Server (Ntrs), Paperback | Indigo Chapters
Axial And Centrifugal Compressor Mean Line Flow Analysis Method by Nasa Nasa Technical Reports Server (Ntrs), Paperback | Indigo Chapters

From Nasa Nasa Technical Reports Server (Ntrs)

Axial And Centrifugal Compressor Mean Line Flow Analysis Method by Nasa Nasa Technical Reports Server (Ntrs), Paperback | Indigo Chapters

Current price: $18.99
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This paper describes a method to estimate key aerodynamic parameters of single and multistage axial and centrifugal compressors. This mean-line compressor code COMDES provides the capability of sizing single and multistage compressors quickly during the conceptual design process. Based on the compressible fluid flow equations and the Euler equation, the code can estimate rotor inlet and exit blade angles when run in the design mode. The design point rotor efficiency and stator losses are inputs to the code, and are modeled at off design. When run in the off-design analysis mode, it can be used to generate performance maps based on simple models for losses due to rotor incidence and inlet guide vane reset angle. The code can provide an improved understanding of basic aerodynamic parameters such as diffusion factor, loading levels and incidence, when matching multistage compressor blade rows at design and at part-speed operation. Rotor loading levels and relative velocity ratio are correlated to the onset of compressor surge. NASA Stage 37 and the three-stage NASA 74-A axial compressors were analyzed and the results compared to test data. The code has been used to generate the performance map for the NASA 76-B three-stage axial compressor featuring variable geometry. The compressor stages were aerodynamically matched at off-design speeds by adjusting the variable inlet guide vane and variable stator geometry angles to control the rotor diffusion factor and incidence angles. | Axial And Centrifugal Compressor Mean Line Flow Analysis Method by Nasa Nasa Technical Reports Server (Ntrs), Paperback | Indigo Chapters

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