Negative Compressibility and Inverse Problem for Spinning Gas

Vasily Geyko and Nathaniel J. Fisch

关键词: Mathematical Physics;    Gas Dynamics;   

DOI  :  10.2172/1059933
RP-ID  :  PPPL-4842
PID  :  OSTI ID: 1059933

学科分类：原子、分子光学和等离子物理

美国|英语

来源: SciTech Connect

【 摘 要 】

A spinning ideal gas in a cylinder with a smooth surface is shown to have unusual properties. First, under compression parallel to the axis of rotation, the spinning gas exhibits negative compressibility because energy can be stored in the rotation. Second, the spinning breaks the symmetry under which partial pressures of a mixture of gases simply add proportional to the constituent number densities. Thus, remarkably, in a mixture of spinning gases, an inverse problem can be formulated such that the gas constituents can be determined through external measurements only.