Acta Metrologica Sinica  2014, Vol. 35 Issue (1): 1-4    DOI: 10.3969/j.issn.1000-1158.2014.01.01
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The Discontinuous Boundary Layer Effects on Acoustic Resonance Frequency in Cylindrical Cavity
YIN Zhao-wei,FENG Xiao-juan,LIN Hong,ZHANG Jin-tao
National Institute of Metrology, Division of Thermophysics and Process Measurements, Beijing 100013, China
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Abstract  Based on the first order acoustic perturbation theory,the discontinuous boundary layer effects from the temperaturejump and slip-velocity between the gas and the solid wall are investigated At low pressures,temperature-jump and slip-velocity make a significant contribution to the resonance frequencies but not to energy losses.The corrections to the resonance frequencies are presented.The corrections for different gases,different acoustic modes at different pressures and temperatures are  also compared This correction is very necessary for the re-determination of the Boltzmann constant.
Key words Metrology      Cylindrical resonator      Boundary layer      Temperature-jump      Slip-velocity     
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YIN Zhao-wei
FENG Xiao-juan
LIN Hong
ZHANG Jin-tao
Cite this article:   
YIN Zhao-wei,FENG Xiao-juan,LIN Hong, et al. The Discontinuous Boundary Layer Effects on Acoustic Resonance Frequency in Cylindrical Cavity[J]. Acta Metrologica Sinica, 2014, 35(1): 1-4.
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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2014.01.01     OR     http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2014/V35/I1/1
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