|Date||2023.9.12 (9：30 - 10：30)|
Meeting ID:850 3790 0809
|Google Classroom Code||hka2rnx|
|Speaker||Dr. Roberto Zenit|
|Affiliation||Brown University (U.S.A.)|
|Title||"Gas bubble dynamics: a personal journey"
The study of the dynamics of gas bubbles in liquids is justified by the numerous applications and natural phenomena where this two-phase flow is encountered. Gas bubbles moveas forces are applied to them ; their dynamics are full of nuances that need to be addressed carefully. Since the mass of gas bubbles is practically negligible, in comparison withthat of the surrounding liquid, their reaction to forces can be drastic. Furthermore, since their surface can be deformed by the same forces acting on them, their shape may changeleading to changes in their resistance to move, the drag force, and therefore affecting their speed. The liquid rheology, as well as its surfactant content can also affect the bubbleshape and motion as well. Understanding these issues, in addition to the effect of interactions with other bubbles, walls and non-uniform flows, provides sufficient elements tomodel and predict bubble behavior through the solution of dynamics equations. In this talk, I will discuss some of these issues which have kept me busy for the past 20 years, toend with suggestions for research directions for the subject in the future.
|Intended for||Everyone is welcome to join.|
|Co-Organized by||Institute of Global Innovation Research "LIFE SCIENCE" Tagawa Team
Excellent Leader Development for Super Smart Society by New Industry Creation and Diversity
|Contact||Institute of Global Innovation Research, Institute of Engineering
Prof. Yoshiyuki Tagawa
This seminar will be held both face-to-face and online concurrently.