Is Brenner＇s Modification to the Classical Navier-Stokes Equations Able to Describe Sound Propagation in Gases？
Is Brenner＇s Modification to the Classical Navier-Stokes Equations Able to Describe Sound Propagation in Gases？作者机构：Departamento de Fisica Universidade Federal do Parana Calxa Postal 19044 81531-990 Curitiba Brazil
出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)
年 卷 期：2008年第25卷第4期
页 面：1355-1358页
核心收录：
学科分类：07[理学] 082403[工学-水声工程] 08[工学] 070206[理学-声学] 0824[工学-船舶与海洋工程] 0702[理学-物理学]
主 题：Modification Classical Navier-Stokes Equations Able
摘 要：We analyse the problem concerning the propagation of sound waves in gases by using the modified hydrodynamic theory proposed recently by Brenner for single-component fluids. The modifications introduced by Brenner are based on his proposal that the translational momentum in fluid motion is not given by the mass flux. Comparison of the sound propagation results derived from Brenner＇s theory with available experimental data for monatomic gases shows that this modified continuum theory is unable to describe the acoustic measurements not even in the low-frequency limit, a result that from our point of view makes Brenner＇s proposal questionable.
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