论文标题
碎片形成对核液态气相过渡区域剪切粘度的影响
Impact of fragment formation on shear viscosity in the nuclear liquid-gas phase transition region
论文作者
论文摘要
在改进的量子分子动力学(IMQMD)模型中,我们遵循周期盒中平面轴向流的核物质演变。我们专注于液态气相变的区域,并在粘度定义后直接从局部应力张量提取剪切粘度系数。通过打开和关闭平均场并从而诱导相变,我们能够观察到相转移区域中块的影响到粘度。
Within the improved quantum molecular dynamic (ImQMD) model we follow the evolution of nuclear matter for planar Couette flow in a periodic box. We focus on the region of liquid-gas phase transition and extract the shear viscosity coefficient from the local stress tensor, directly following viscosity definition. By switching on and off the mean field and thus inducing the phase transition, we are able to observe the impact of clumping in the phase-transition region onto the viscosity.