Title :
Micropropulsion of air and liquid jet by acoustic streaming
Author :
Yu, Hongyu ; Kim, Eun Sok
Author_Institution :
Dept. of Electr. Eng.-Electrophys., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
This paper describes an ultrasonic, nozzleless jet propeller that can shoot out jet streams of liquid or air (from a spot of hundreds of micron in diameter) through an acoustic streaming effect. The propelled jet streams of liquid contain atomized liquid particles of 3 to 10 microns in diameter, and move at a rate as high as 37.5 μl/s. In case of air, the speed of the propelled air jet can reach up to 1.2 m/s. This is the first time that acoustic streaming effect is experimentally confirmed in air at such a high frequency of 10.8 MHz.
Keywords :
acoustic streaming; drops; propulsion; 1.2 m/s; 10.8 MHz; 3 to 10 micron; acoustic streaming effect; liquid jet; micropropulsion; propelled air jet; ultrasonic nozzleless jet propeller; Acoustic transducers; Acoustic waves; Electrodes; Frequency; Glass; Propellers; Propulsion; Silicon; Spraying; Surface acoustic waves;
Conference_Titel :
Micro Electro Mechanical Systems, 2003. MEMS-03 Kyoto. IEEE The Sixteenth Annual International Conference on
Print_ISBN :
0-7803-7744-3
DOI :
10.1109/MEMSYS.2003.1189691
