Droplet combustion in standing sound waves

2005 ◽  
Vol 30 (2) ◽  
pp. 1957-1964 ◽  
Author(s):  
Mitsuaki Tanabe ◽  
Takuo Kuwahara ◽  
Kimiyoshi Satoh ◽  
Toshiro Fujimori ◽  
Jun’ichi Sato ◽  
...  
Keyword(s):  
Droplet Combustion ◽  
Sound Waves ◽  
Standing Sound

Influence of standing sound waves on droplet combustion

2000 ◽  
Vol 28 (1) ◽  
pp. 1007-1013 ◽  
Author(s):  
Mitsuaki Tanabe ◽  
Toshifumi Morita ◽  
Kiyoshi Aoki ◽  
Kimiyoshi Satoh ◽  
Toshiro Fujimori ◽  
...  
Keyword(s):  
Droplet Combustion ◽  
Sound Waves ◽  
Standing Sound

Injury to living cells in standing sound waves,

1952 ◽  
Vol 40 (2) ◽  
pp. 255-268 ◽  
Author(s):  
D. E. Goldman ◽  
W. W. Lepeschkin
Keyword(s):  
Living Cells ◽  
Sound Waves ◽  
Standing Sound

Velocity of Sound and Acoustic Attenuation in Pure Gallium Single Crystals

1971 ◽  
Vol 49 (9) ◽  
pp. 1075-1097 ◽  
Author(s):  
K. R. Lyall ◽  
J. F. Cochran
Keyword(s):  
Single Crystals ◽  
Elastic Constants ◽  
Acoustic Waves ◽  
Sound Waves ◽  
Velocity Of Sound ◽  
Velocity Data ◽  
Acoustic Attenuation ◽  
Longitudinal Waves ◽  
Complete Set ◽  
Standing Sound

The velocity of sound for both transverse and longitudinal waves has been measured in single crystals of pure gallium. These velocity data have been used to calculate a complete set of elastic constants for gallium at 273, 77, and 4.2 °K. A survey has also been made of the acoustic attenuation in gallium at approximately 5 MHz over the range 1.5–300 °K. The measurements were made using a transducerless method which utilizes the direct electromagnetic generation of acoustic waves at the surfaces of a metal to excite standing sound waves in a slab-shaped specimen. It is demonstrated that this technique is both convenient and sensitive: changes of 1:106 in the velocity of sound in gallium were found to be readily measurable over the range 1.5–300 °K.

Standing Sound Waves in the Boehm Flute Measured by the Hot Wire Probe

1936 ◽  
Vol 7 (3) ◽  
pp. 178-189 ◽  
Author(s):  
Robert W. Young ◽  
Donald H. Loughridge
Keyword(s):  
Sound Waves ◽  
Hot Wire ◽  
Wire Probe ◽  
Standing Sound

Heat Transfer Implications of Acoustic Resonances in Turbine Internal Cooling Channels

2016 ◽  
Vol 138 (5) ◽  
Author(s):  
C. Selcan ◽  
B. Cukurel ◽  
J. Shashank
Keyword(s):  
Heat Transfer ◽  
Cooling System ◽  
Resonance Condition ◽  
Resonance Effect ◽  
Acoustic Resonance ◽  
Mode Shapes ◽  
Internal Cooling ◽  
Sound Waves ◽  
The Impact ◽  
Standing Sound

In an attempt to investigate the acoustic resonance effect of serpentine passages on internal convection heat transfer, the present work examines a typical high pressure turbine (HPT) blade internal cooling system, based on the geometry of the NASA E3 engine. In order to identify the associated dominant acoustic characteristics, a numerical finite-element method (FEM) simulation (two-step frequency domain analysis) is conducted to solve the Helmholtz equation with and without source terms. Mode shapes of the relevant identified eigenfrequencies (in the 0–20 kHz range) are studied with respect to induced standing sound wave patterns and the local node/antinode distributions. It is observed that despite the complexity of engine geometries, the predominant resonance behavior can be modeled by a same-ended straight duct. Therefore, capturing the physics observed in a generic geometry, the heat transfer ramifications are experimentally investigated in a scaled wind tunnel facility at a representative resonance condition. Focusing on the straight cooling channel's longitudinal eigenmode in the presence of an isolated rib element, the impact of standing sound waves on convective heat transfer and aerodynamic losses are demonstrated by liquid crystal thermometry, local static pressure and sound level measurements. The findings indicate a pronounced heat transfer influence in the rib wake separation region, without a higher pressure drop penalty. This highlights the potential of modulating the aerothermal performance of the system via acoustic resonance mode excitations.

Analysis of standing sound waves using holographic interferometry

2009 ◽  
Vol 77 (8) ◽  
pp. 678-682 ◽  
Author(s):  
Daniel A. Russell ◽  
David E. Parker ◽  
Russell S. Hughes
Keyword(s):  
Holographic Interferometry ◽  
Sound Waves ◽  
Standing Sound

Demonstration on Standing Sound Waves

1948 ◽  
Vol 16 (6) ◽  
pp. 360-360
Author(s):  
Robert R. Meijer
Keyword(s):  
Sound Waves ◽  
Standing Sound
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