IMECH-IR  > 国家微重力实验室
环形液池浮力-热毛细对流表面振荡现象的临界温差
张丽; 段俐; 康琦
Source Publication第八届全国实验流体力学学术会议论文集
2010
Pages142-146
Conference Name第八届全国实验流体力学学术会议
Conference Date2010-12-26
Conference Place中国广东广州
Abstract浮力-热毛细对流在晶体生长和薄膜科学领域有着重要的研究价值。对于上部开口的环形液池,加载径向温度梯度将使气液接触面上表面张力分布不均匀,耦合于地面的重力作用,将会驱动薄层流体形成浮力-热毛细对流。当径向温度差△T达到某一临界值~(△T_C)时,液层表面就会出现具有一定规律的振荡现象,液层厚度h和径向温差△T的改变都会导致振荡模式的变化。本实验采用高精度激光位移传感器系统,测量了液池表面某点的位移随液层厚度h和径向温差△T的变化曲线,并在此基础上进行了临界温差及环境因素影响等分析。
Keyword热毛细对流 临界温差 环境温度 液池 振荡现象 液层 重力作用 径向温差 振荡流动 流体层
Department中科院国家微重力实验室
Language中文
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/48358
Collection国家微重力实验室
Recommended Citation
GB/T 7714
张丽,段俐,康琦. 环形液池浮力-热毛细对流表面振荡现象的临界温差[C]第八届全国实验流体力学学术会议论文集,2010:142-146.
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