Investigation into the improved axial compressibility of a spinning non-ideal gas  

作　　者：Yi-Wen Zhang Shi-Long Su Shu-Bin Xie Wei-Min Zhou Hao Liu 

机构地区：[1]Department of Applied Physics,School of Physics and Electronics,Hunan University,Changsha 410082,China [2]Science and Technology on Plasma Physics Laboratory,Laser Fusion Research Center,China Academy of Engineering Physics,Mianyang 621900,China [3]HEDPS,Center for Applied Physics and Technology,Peking University,Beijing 100086,China

出　　处：《Frontiers of physics》2020年第4期25-31,共7页物理学前沿（英文版）

基　　金：This work was financially supported by the National Natural Science Foundation of China(Grant No.11805061);the Natural Science Foundation of Hunan Province,China(Grant No.2019JJ50072);the Science Challenge Project(Grant No.TZ2016005);the Fundamental Research Funds for the Central Universities.

摘　　要：Using theoretical analysis and mumerical calculation method,the axial adiabatic compression of a spinning non-ideal gas in a cylinder with a smooth surface is investigated.We show that the axial pressure of a spinning gas will gradually become lower than that of a stationary gas during continuous compression,even though the initial axial pressure of the spining gas is larger than that of the stationary gas at the same initial temperature and average density.This phenomenon indicates that the axial compressibility of gas is improved in a rotating system.In addition,the effect of different forms of virial coefficient B(T)on pressure and temperature changes in spinning and stationary gases are investigated.Research on the axial compressibility of spinning non ideal gas can provide useful references for fields that require high compression of gases,such as laser fusion,laboratory astrophysics,and Z-pinch experiments.

关 键 词：COMPRESSIBILITY spinning system non ideal gas virial EOS 

分 类 号：O35[理学—流体力学]