HYDROACOUSTICS
ANNUAL JOURNAL |
START | NEW VOL 20 | SEARCH | STATISTICS | PAS - GDANSK DIVISION |
pp. 53-60, vol. 13, 2010 Henryka Czyż Rzeszow University of Technology, The Faculty of Mathematics and Applied Physics, Rzeszow, Poland Teresa Pop University of Rzeszów, The Faculty of Medicine, Rzeszów, Poland Adam Szczepaniak Rzeszow University of Technology, The Faculty of Mechanical Engineering and Aeronautics, Rzeszow, Poland Witold Ściuk Lufthansa Systems Poland, Gdańsk, Poland Key words: medium properties; wave propagation Abstract: The presented study involves the problem of acoustic energy absorbed by aerosols. The aim of this paper is to present results of the valuation of ultrasound energy absorption general coefficient in the dispersions (aerosols). Aerosol particle is an obstacle for acoustic wave propagating and to surmount of which some energy of the medium vibrating is lost. Aerosol particle results in both acoustic energy scattering and its absorption. Besides, there are heat losses connected with periodic variation of the medium temperature. In this connection propagation of acoustic wave in the aerosol is related to decrease in wave intensity to more extent than in propagating a wave in a pure gaseous medium.
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