|Oscillatory flow at the onset of convection in two-layer Bénard-Marangoni system|
|Kang Q(康琦); Li LJ(李陆军); Duan L(段俐); Hu WR(胡文瑞); Kang, Q. (email@example.com)
|Source Publication||60th International Astronautical Congress 2009, IAC 2009
|Conference Name||60th International Astronautical Congress 2009, IAC 2009
|Conference Date||October 12, 2009 - October 16, 2009
|Conference Place||Daejeon, Korea, Republic of
|Abstract||In this paper, the time-dependent Be´nard-Marangoni convections of two-layer fluid at the onset of convection are investigated experimentally. The flows are visualized from side with particle image velocimetry (PIV) and structure change of velocity fields near onset of convection are observed while the depth ratio varies in a range. The variation of the critical temperature difference with the depth ratio shows that the "peak depth ratio" is very far from the "balancing depth ratio"; the oscillatory onsets from stationary were obtained in a big gap of depth ratio in which the "peak depth ratio" located. These results don't agree with the predications of the linear stability analysis.|
|Keyword||Critical Temperature Difference
Onset Of Convection
Particle Image Velocimetries
Two Layer Fluid
|Corresponding Author||Kang, Q. (firstname.lastname@example.org)|
Kang Q,Li LJ,Duan L,et al. Oscillatory flow at the onset of convection in two-layer Bénard-Marangoni system[C]60th International Astronautical Congress 2009, IAC 2009,2009.
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