论文标题
旋转湍流热对流和太阳差旋转
Rotating Turbulent Thermal Convection and Solar Differential Rotation
论文作者
论文摘要
旋转流体的膨胀将改变扩展区域的涡度和旋转速度。在湍流热对流中，保留了这种微观效应。跟踪流体胶束表明，平均涡度随密度而变化，产生涡度传输和角动量从低密度面积到高密度区域，形成巨大的涡度差异和旋转速度差。采用太阳极区域的轴向热对流模型，它可以产生轴向微分旋转，并且轴向差异旋转产生的离心力差驱动子午循环，从而将角动量从旋转轴上移动，形成纬度差异旋转。流体电池的旋转会产生额外的压力并改变对流标准。太阳对流层中的温度梯度高于非旋转流体模型中的温度梯度，它是差异旋转的能源。
The expansion of the rotating fluid will change the vorticity and rotational speed of the expanding region. In turbulent thermal convection, this microscopic effect is preserved. Tracking the fluid micelles shows that the average vorticity varies with density, producing vorticity transport and angular momentum transport from the low-density area to the high-density area, forming a macroscopic vorticity difference and rotational speed difference. Taking the axial thermal convection model of the solar polar region, it can generate axial differential rotation, and the centrifugal force difference generated by the axial differential rotation drives the meridional circulation, transporting angular momentum away from the axis of rotation, forming latitudinal differential rotation. The rotation of the fluid cell generates additional pressure and change the convection criterion. The temperature gradient in the solar troposphere is higher than in the non-rotating fluid model, It's the energy source of the differential rotating.
