Supersonic radiatively cooled rotating flows and jets in the laboratory.
Supersonic radiatively cooled rotating flows and jets in the laboratory.
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实验室中的超音速辐射冷却旋转流和射流。
DOI：
10.1103/physrevlett.100.035001
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发表时间：
2007
影响因子：
8.6
通讯作者：
E. Blackman
中科院分区：
文献类型：
--
作者：
D. Ampleford;S. Lebedev;Andrea Ciardi;S. Bland;S. Bott;G. Hall;N. Naz;C. Jennings;M. Sherlock;J. Chittenden;J. Palmer;A. Frank;E. Blackman
讨论了第一个产生具有动态显着角动量的辐射冷却等离子体射流的实验室天体物理实验。线阵列 z 收缩的新配置，即扭曲锥形线阵列，用于产生会聚等离子体流，每个等离子体流绕中心轴旋转。流动的碰撞产生立激波和射流，它们各自具有超音速方位角速度。通过改变阵列的扭转角度，可以控制系统的旋转速度，射流旋转速度达到传播速度的约18%。
The first laboratory astrophysics experiments to produce a radiatively cooled plasma jet with dynamically significant angular momentum are discussed. A new configuration of wire array z pinch, the twisted conical wire array, is used to produce convergent plasma flows each rotating about the central axis. Collision of the flows produces a standing shock and jet that each have supersonic azimuthal velocities. By varying the twist angle of the array, the rotation velocity of the system can be controlled, with jet rotation velocities reaching approximately 18% of the propagation velocity.