THERMOPHYSICAL PROPERTY MEASUREMENTS ON GROUND AND IN MICROGRAVITY: RESULTS AND PERSPECTIVES
Microgravity is the perfect environment to study the properties and dynamics of liquid matter. There is practically no convection, sedimentation or buoyancy. Microgravity conditions have been used extensively for the study of critical phenomena and investigations of solidification dynamics. More recently, also a number of experiments have been performed aiming at determining thermophysical properties of liquids, in particular liquid metals. For the latter, containerless processing by electromagnetic levitation offers great advantages. Its use for thermophysical property measurements started in the sixties. In the nineties, the possibility to perform such experiments under microgravity boosted this research field. This paper reviews thermophysical property mea-surements on ground and in microgravity with a focus on surface tension, viscosity and density. Results obtained on board the Shuttle as well as in parabolic flights and sounding rocket missions are critically discussed. Furthermore, an outlook into the planned experiments onboard the ISS is also given.
Ivan Egry
Institut für Materialphysik im Weltraum German Aerospace Center, DLR 51170 Cologne, Germany
国际会议
The Ninth Asian Thermophysical Properties Conference(第九届亚洲热物理性能会议 ATPC 2010)
北京
英文
1233-1240
2010-10-19（万方平台首次上网日期，不代表论文的发表时间）