无旋强迫流的涡量
Vorticity from irrotationally forced flow
摘要：
在星际介质中，湍流被认为主要是通过超新星爆炸产生的。在第一近似中，这些流动可以写成势的梯度，因而没有涡量。有几种机制可能导致涡的产生，如粘性和斜压项，旋转，剪切和磁场，但目前还不清楚它们的有效性，也不清楚涡是否是决定湍流扩散作用在ISM中的必要条件。本文研究了旋转、切变和斜压性在ISM涡度生成中的作用。
英文摘要：
In the interstellar medium the turbulence is believed to be forced mostly through supernova explosions. In a first approximation these flows can be written as a gradient of a potential being thus devoid of vorticity. There are several mechanisms that could lead to vorticity generation, like viscosity and baroclinic terms, rotation, shear and magnetic fields, but it is not clear how effective they are, neither is it clear whether the vorticity is essential in determining the turbulent diffusion acting in the ISM. Here we present a study of the role of rotation, shear and baroclinicity in the generation of vorticity in the ISM.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
