Experiment on multimode feedback control of non-linear thermocapillary convection in a half-zone liquid bridge

QC 20111107
Feedback control on was carried out on non-linear thermocapillary convections in a half-zone liquid bridge of a high Prandtl number fluid. In the liquid bridge, the convection changes from a two-dimensional steady flow to a three-dimensional oscillatory one at a critical temperature difference. Feedback control was realized by locally modifying the free surface temperature using local temperature measured at different positions. The present study aims to develop a new control scheme by taking spatio-temporal azimuthal distribution of temperature fluctuation into account. The new control scheme achieved significant attenuation of the temperature oscillation compared with the previous one in a high Marangoni number range.

Shiomi, J.University of Tokyo, Tokyo, Japan (författare)
Ueno, I.Tokyo University of Science, Chiba, Japan (författare)
Amberg, GustavKTH,Fysiokemisk strömningsmekanik(Swepub:sh)shgvag16 (författare)
Kawamura, H.Tokyo University of Science, Chiba, Japan (författare)
Tokyo University of Science, Chiba, JapanUniversity of Tokyo, Tokyo, Japan (creator_code:org_t)

Ingår i:LOW GRAVITY PHENOMENA AND CONDENSED MATTER EXPERIMENTS IN SPACE: Elsevier BV36:4, s. 57-63
Ingår i:Advances in Space Research: Elsevier BV36:4, s. 57-630273-11771879-1948

Av författaren/redakt...: Kudo, M.; Shiomi, J.; Ueno, I.; Amberg, Gustav; Kawamura, H.

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