The first results of He II boiling visualization experiment conducted under 4.7 seconds microgravity conditions
The first results of He II boiling visualization experiment conducted under 4.7 seconds microgravity conditions
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4.7秒微重力条件下He II沸腾可视化实验首个结果
DOI：
10.1088/1742-6596/897/1/012013
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Grunt Krzysztof
中科院分区：
文献类型：
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作者：
Takada Suguru;Kimura Nobuhiro;Pietrowicz Slawomir;Grunt Krzysztof
为了研究超流氦相变动力学，在微重力条件下进行了超流氦沸腾实验。为了达到这个目的，使用了一个装有可视化装置的小型低温恒温器。两个正交光轴的存在允许对由微加热器引起的蒸汽泡的三维图像进行配准。利用德国不来梅大学应用空间技术和微重力中心122米高的落塔设施，微重力环境已经产生了大约4.7秒。在避免对设备造成任何损坏的情况下，由32滴组成的实验运动已成功进行。
An experiment regarding boiling of superfluid helium (He II) has been carried out under conditions of microgravity, in order to investigate the dynamics of the phase transition. A small cryostat equipped with visualization setup has been utilized for this purpose. Presence of two orthogonal optical axes allowed for registering of 3-dimensional images of a vapor bubble induced by a micro heater. Microgravity environment has been produced for about 4.7 s using the 122 m high drop tower facility at ZARM (Center of Applied Space Technology and Microgravity), University of Bremen, Germany. The experimental campaign consisting of 32 drops has been successfully conducted, while avoiding any damage to the equipment.