Experimental Investigation Of Supersonic Internal Cavity Flows PDF Download
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Author | : Kazuyuki Sakamoto |
Publisher | : |
Total Pages | : |
Release | : 1995 |
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Download Experimental Investigation of Supersonic Internal Cavity Flows Book in PDF, ePub and Kindle
Author | : Ning Zhuang |
Publisher | : |
Total Pages | : 176 |
Release | : 2007 |
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Download Experimental Investigation of Supersonic Cavity Flows and Their Control Book in PDF, ePub and Kindle
The study of supersonic cavity flows is of interest both from fundamental fluid dynamics and practical perspectives. The complex nature of this flowfield, consisting of compressible shear layers, compression/expansion waves, and fluid-acoustic interactions, makes it a rich problem to study. A detailed experimental study of supersonic flow (M=1.5 to 2) over a range of three-dimensional rectangular cavities (L/D=1 to 5.2) was conducted. The measurements included unsteady surface pressure measurements, particle image velocimetry, and flow visualization using shadowgraph and schlieren. Large-scale structures in the shear layer and a large recirculation zone in the cavity was observed. Spatial and temporal mode switching was also observed, the nature being different for short and long cavities. The shear layer characteristics of the two cavities are very different in term of curvature and growth. Supersonic microjets were used at the leading edge of the cavities to suppress the resonance in the flow. With a minimal mass flux (0.15%), the activation of microjets led to a large reduction in cavity tones (20 dB) and overall sound pressure levels (9dB). In addition, the microjet injection enhanced the shear layer mixing and reduced the velocity fluctuation in the cavities. The significant reductions together with the low mass flux requirements make this a potentially viable technique for full-scale, practical applications.
Author | : Richard Hazlewood |
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Total Pages | : |
Release | : 1995 |
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Download An Experimental Investigation of Cavity Vortex Generators in Supersonic Flow Book in PDF, ePub and Kindle
Author | : Floyd Jay Wilcox |
Publisher | : |
Total Pages | : 112 |
Release | : 1990 |
Genre | : Aerodynamics, Supersonic |
ISBN | : |
Download Experimental Investigation of Porous-floor Effects on Cavity Flow Fields at Supersonic Speeds Book in PDF, ePub and Kindle
Author | : K. Yu |
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Total Pages | : |
Release | : 1998 |
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Download Experimental Investigation on Dual-purpose Cavity in Supersonic Reacting Flows Book in PDF, ePub and Kindle
Author | : Floyd J. Wilcox |
Publisher | : |
Total Pages | : 0 |
Release | : 1990 |
Genre | : |
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Download Experimental Investigation of Porous-floor Effects on Cavity Flow Fields at Supersonic Speeds Book in PDF, ePub and Kindle
Author | : Joseph Francis Madden (Jr.) |
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Total Pages | : 46 |
Release | : 1941 |
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Download An Experimental Investigation of Supersonic Flow Book in PDF, ePub and Kindle
Author | : Edward Malcolm Harvey Newton |
Publisher | : |
Total Pages | : 100 |
Release | : 1964 |
Genre | : Aerodynamics, Supersonic |
ISBN | : |
Download Experimental Investigation of Supersonic Flow in the Neighborhood of a Forward-facing Step Book in PDF, ePub and Kindle
Author | : Malcom Green |
Publisher | : |
Total Pages | : 78 |
Release | : 1951 |
Genre | : |
ISBN | : |
Download An Experimental Investigation of Supersonic Flow in Long Channels Book in PDF, ePub and Kindle
Author | : Robert Earl Wilson |
Publisher | : |
Total Pages | : 110 |
Release | : 1966 |
Genre | : |
ISBN | : |
Download An Experimental Investigation of Separated Turbulent Supersonic Flow at M Book in PDF, ePub and Kindle