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Author: Harvey H. Hubbard
Publisher:
ISBN:
Category : Aerodynamic noise
Languages : en
Pages : 620
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Book Description
Author: Harvey H. Hubbard
Publisher:
ISBN:
Category : Aerodynamic noise
Languages : en
Pages : 620
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 702
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Book Description
Author: Roy D. Hager
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 140
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Book Description
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722914516
Category :
Languages : en
Pages : 104
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Book Description
The purpose of this report is to document improvements to the Propeller Analysis System of the Aircraft Noise Prediction Program (PAS-ANOPP) and to serve as a users guide. An overview of the functional modules and modifications made to the Propeller ANOPP system are described. Propeller noise predictions are made by executing a sequence of functional modules through the use of ANOPP control statements. The most commonly used ANOPP control statements are discussed with detailed examples demonstrating the use of each control statement. Originally, the Propeller Analysis System included the angle-of-attack only in the performance module. Recently, modifications have been made to also include angle-of-attack in the noise prediction module. A brief description of PAS prediction capabilities is presented which illustrate the input requirements necessary to run the code by way of ten templates. The purpose of the templates are to provide PAS users with complete examples which can be modified to serve their particular purposes. The examples include the use of different approximations in the computation of the noise and the effects of synchrophasing. Since modifications have been made to the original PAS-ANOPP, comparisons of the modified ANOPP and wind tunnel data are also included. Two appendices are attached at the end of this report which provide useful reference material. One appendix summarizes the PAS functional modules while the second provides a detailed discussion of the TABLE control statement. Nguygen, L. Cathy and Kelly, Jeffrey J. Langley Research Center APPLICATIONS PROGRAMS (COMPUTERS); PROPELLER NOISE; ANGLE OF ATTACK; NOISE PREDICTION (AIRCRAFT); WIND TUNNEL TESTS; TEMPLATES; SYNCHROPHASING; MODULES; USER MANUALS (COMPUTER PROGRAMS)...
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 458
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 260
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Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages :
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 98
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Author:
Publisher:
ISBN:
Category : Shock (Mechanics)
Languages : en
Pages : 476
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 580
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Book Description
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)
