Comment on "Dynamically maintained steady-state pressure gradients"
被引:15
作者:
Duncan, TL
论文数: 0引用数: 0
h-index: 0
机构:
Portland State Univ, Ctr Sci Educ, Portland, OR 97207 USAPortland State Univ, Ctr Sci Educ, Portland, OR 97207 USA
Duncan, TL
[1
]
机构:
[1] Portland State Univ, Ctr Sci Educ, Portland, OR 97207 USA
来源:
PHYSICAL REVIEW E
|
2000年
/
61卷
/
04期
关键词:
D O I:
10.1103/PhysRevE.61.4661
中图分类号:
O35 [流体力学];
O53 [等离子体物理学];
学科分类号:
070204 ;
080103 ;
080704 ;
摘要:
Sheehan [Phys. Rev. E 57, 6660 (1998)] recently discussed the possibility of establishing a dynamically maintained, steady-state pressure gradient in a gas filling a cavity. In this Comment it is pointed out that the pressure gradients in such a system, if attainable in the laboratory, could be used to violate the second law of thermodynamics.