Analysis of spherical thermo-acoustic radiation in gas | Zendy

Hanping Hu | Zendy; Zedong Wang | Zendy; Hao Wu | Zendy; Yandong Wang | Zendy

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Analysis of spherical thermo-acoustic radiation in gas

Author(s) -

Hanping Hu,

Zedong Wang,

Hao Wu,

Yandong Wang

Publication year - 2012

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4738497

Subject(s) - radius , acoustic emission , planar , radiation , spherical wave , spherical geometry , amplitude , materials science , spherical model , surface (topology) , atomic physics , physics , optics , geometry , condensed matter physics , composite material , mathematics , computer graphics (images) , computer security , computer science

A general solution of the spherical thermo-acoustic (TA) radiation from any solid in gas is derived by using a fully thermally-mechanically coupled TA model. Therefore, the characteristics and regularities of spherical TA emission can be studied more completely. It is shown that flat amplitude-frequency response, the most important feature for planar TA emission from technical standpoint, still exists for spherical TA emission, and changes with the radius of a sphere, thickness of TA sample, and the distance from surface. This expression agrees well with experimental and theoretical results of planer TA emission for much larger sphere and lays the foundation to calculate complex TA emission problems

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