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  • 1
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    Review - Computational methods for internal flows with emphasis on turbomachinery (1985)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: Current computational methods for analyzing flows in turbomachinery and other related internal propulsion components are presented. The methods are divided into two classes. The inviscid methods deal specifically with turbomachinery applications. Viscous methods, deal with generalized duct flows as well as flows in turbomachinery passages. Inviscid methods are categorized into the potential, stream function, and Euler approaches. Viscous methods are treated in terms of parabolic, partially parabolic, and elliptic procedures. Various grids used in association with these procedures are also discussed.
    Keywords: AERODYNAMICS
    Type: ASME, Transactions, Journal of Fluids Engineering (ISSN 0098-2202); 107; 6-22
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    FORTRAN program for generating a two-dimensional orthogonal mesh between two arbitrary boundaries (1972)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A FORTRAN 4 program is presented which computes and plots coordinates for a two-dimensional orthogonal mesh in the region between the walls of a flow channel. The program is designed for a channel containing a body about which flow passes and which spans the channel from one wall to the other. However, the condition that the channel contain an immersed body can be easily removed from the program. Input to the program consists of spline points of the channel walls and the body geometry. Output includes printed and plotted coordinates of the generated orthogonal mesh and angles of the mesh with the horizontal plane.
    Keywords: AERODYNAMICS
    Type: NASA-TN-D-6766 , E-6644
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    FORTRAN program for calculating velocities and streamlines on the hub-shroud mid-channel flow surface of an axial-or mixed-flow turbomachine. 2: Programmer's manual (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A FORTRAN-IV computer program, MERIDL, has been developed that obtains a subsonic or shock-free transonic flow solution on the hub-shroud mid-channel flow surface of a turbomachine. The blade row may be fixed or rotating and may be twisted and leaned. Flow may be axial or mixed, up to 45 deg from axial. Upstream and downstream flow variables can vary from hub to shroud, and provision is made to correct for loss of stagnation pressure. The results include velocities, streamlines, and flow angles on the flow surface and approximate blade surface velocities. Subsonic solutions are obtained by a finite-difference stream-function solution. Transonic solutions are obtained by a velocity-gradient method, using information from a finite-difference stream-function solution at a reduced mass flow.
    Keywords: AERODYNAMICS
    Type: NASA-TN-D-7344 , E-7516
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Computational methods for internal flows with emphasis on turbomachinery (1981)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Current computational methods for analyzing flows in turbomachinery and other related internal propulsion components are presented. The methods are divided into two classes. The inviscid methods deal specifically with turbomachinery applications. Viscous methods, deal with generalized duct flows as well as flows in turbomachinery passages. Inviscid methods are categorized into the potential, stream function, and Euler aproaches. Viscous methods are treated in terms of parabolic, partially parabolic, and elliptic procedures. Various grids used in association with these procedures are also discussed.
    Keywords: AERODYNAMICS
    Type: NASA-TM-82764 , E-1085 , The ASME Winter Ann. Meeting; Nov 15, 1981 - Nov 20, 1981; Washington, DC; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Revised FORTRAN program for calculating velocities and streamlines on the hub-shroud midchannel stream surface of an axial-, radial-, or mixed-flow turbomachine or annular duct. 2: Programmer's manual (1977)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A FORTRAN IV computer program has been developed that obtains a detailed subsonic or shock free transonic flow solution on the hub-shroud midchannel stream surface of a turbomachine. The blade row may be fixed or rotating, and the blades may be twisted and leaned. Flow may be axial, mixed, or radial. Upstream and downstream flow variables may vary from hub to shroud, and provisions are made to correct for loss of stagnation pressure. The results include velocities, streamlines, and flow angles on the stream surface and approximate blade surface velocities.
    Keywords: AERODYNAMICS
    Type: NASA-TN-D-8431 , E-8969
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    Programs for computation of velocities and stream-lines on a blade-to-blade surface of a turbomachine. (1969)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Finite difference method computer programs for calculation of velocities and streamlines on blade to blade surface of revolution of turbomachine
    Keywords: AERODYNAMICS
    Type: ASME PAPER 69-GT-48 , AMERICAN SOCIETY OF MECHANICAL ENGINEERS, ANNUAL GAS TURBINE CONFERENCE AND PRODUCTS SHOW; Mar 09, 1969 - Mar 13, 1969; CLEVELAND, OHIO
    Format: text
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    NASA TECHNICAL REPORTS
  • 7
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    Review of experimental work on transonic flow in turbomachinery (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The review is primarily concerned with modern experimental techniques of high response and laser supported instrumentation. The considered techniques make it possible to obtain detailed data of steady and unsteady processes occurring inside transonic blade rows and in the vicinity of the rows. Such data are needed for the verification of computer codes used for the study of the operational characteristics of turbomachinery. Attention is given to high response transducers, hot wire probes, hot film gages, laser Doppler velocimeter systems, laser fluorescence, and laser holography.
    Keywords: AERODYNAMICS
    Type: Transonic flow problems in turbomachinery; Feb 11, 1976 - Feb 12, 1976; Monterey, CA
    Format: text
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    NASA TECHNICAL REPORTS
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