Experimental Investigation of a Supersonic Air Air Ejector Operating with a Second Throat PDF Download
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Author: Sheridan D. Johnston
Publisher:
ISBN:
Category : Supersonic diffusers
Languages : en
Pages : 52
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Book Description
Author: Sheridan D. Johnston
Publisher:
ISBN:
Category : Supersonic diffusers
Languages : en
Pages : 52
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Book Description
Author: Von Karman Institute for Fluid Dynamics
Publisher:
ISBN:
Category : Supersonic diffusers
Languages : en
Pages : 44
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 484
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Book Description
Author: Helmut Uebelhack
Publisher:
ISBN:
Category :
Languages : en
Pages : 40
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Book Description
Author: George Einar Strand
Publisher:
ISBN:
Category :
Languages : en
Pages : 82
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Book Description
An experimental investigation was performed to study the characteristics of the flow in a two-dimensional air ejector in which the center stream entered the mixing chamber at a Mach number of 1.90 while the velocity of the secondary flow was varied from zero to Mach 0.7. Mass flow ratios of the ejector were approximately equal when the pressures of the two streams were equal at the entrance to the mixing chamber. The chamber had a rectangular cross section and converged slightly; its length was equal to 16 times the width. Pressures measured at the walls and the centerline of the flow indicated that a maximum static pressure was reached at 8 widths of the chamber downstream of the nozzle when the flow was completely expanded at the nozzle exit. The maximum static pressure was achieved in less distance for the overexpanded condition and took longer for the underexpanded condition. The flow was always subsonic by the time the maximum pressure position was reached except in the underexpanded case, where the flow remained supersonic throughout the chamber and the maximum pressure was located at the exit to the chamber. (Author).
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 992
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Book Description
Author: William Leroy Hill Jones
Publisher:
ISBN:
Category : Ejector pumps
Languages : en
Pages : 28
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Book Description
Author:
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 1088
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Author: Willis Gene Steward
Publisher:
ISBN:
Category :
Languages : en
Pages : 100
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Book Description
Author: James R. Nelson
Publisher:
ISBN:
Category :
Languages : en
Pages : 94
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Book Description
The turbulent mixing region of a two-dimensional, supersonic, air-air ejector system was experimentally investigated utilizing an interferometer. Density distributions for the two-stream mixing region within the ejector duct were established for 6 different test configurations. Similarity of the density distributions was indicated for mixing region cross sections as close as one nozzleexit hydraulic diameter from the nozzle. Density profiles at successive downstream duct locations were plotted to show the spread of the mixing region. The effect of normal and oblique shocks on the rate of spread of the mixing region was found to be small. In addition, ejector performance data and techniques for spark lamp photography are presented. It is concluded that the interferometer could be effectively utilized to help determine the transport coefficients of ejector system turbulent mixing processes. (Author).
