Marangoni convection in an annular cylindrical tank
Marangoni convection in an annular cylindrical tank
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DOI：
10.1007/s002310050215
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发表时间：
1998-04
影响因子：
2.2
通讯作者：
H. Bauer;W. Eidel
中科院分区：
文献类型：
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作者：
H. Bauer;W. Eidel
如果环形容器中的液体的自由液-气界面经受温度梯度，则自由液体表面上的与温度相关的剪切应力通过粘性牵引在液体本体中产生热毛细对流。当内壁温度T1和外壁温度T2恒定时，发生稳定的Marangoni对流，而当壁温随时间振荡时，则出现随时间变化的热毛细对流，这将在自由液面上产生波型。根据温度的强制频率，它们应表现出共振峰。确定了容器内的速度分布和响应大小。
If the free liquid-gas interface of a liquid in an annular container is subjected to a temperature gradient the temperature dependent shear stress on the free liquid surface creates by viscous traction a thermocapillary convection in the bulk of the liquid. For constant temperatureT1of the inner andT2of the outer wall a steady Marangoni convection takes place, while for time-oscillatory temperatures of the walls a time-dependent thermocapillary convection appears, which will create on the free liquid surface wave patterns. They shall, depending on the forcing frequency of the temperature, exhibit resonance peaks. The velocity distribution and the response magnitude inside the container has been determined.