Bulletin of the American Physical Society
71st Annual Meeting of the APS Division of Fluid Dynamics
Volume 63, Number 13
Sunday–Tuesday, November 18–20, 2018; Atlanta, Georgia
Session A33: Convection and Buoyancy-driven Flows: General I
8:00 AM–9:57 AM,
Sunday, November 18, 2018
Georgia World Congress Center Room: B405
Chair: Joerg Schumacher, Technical University of Ilmenau
Abstract ID: BAPS.2018.DFD.A33.4
Abstract: A33.00004 : Exchange flows in rotating pipes*
8:39 AM–8:52 AM
Seyed Mohammad Taghavi
Seyed Mohammad Taghavi
In this work, the effects of a pipe axial rotating motion on buoyant miscible flows in inclined pipes are studied via experimental methods. The experiments are carried out in a long transparent pipe with closed ends and an automated gate valve making a lock-exchange flow configuration. A system of a stepper motor is employed in order to generate a stable and precise axial rotation speed. The experiments are recorded using a high-speed digital camera to visualize flow patterns in the pipe. The analysis of our experimental results reveals how the interpenetration of the light and heavy fluids are affected by changing the experimental parameters, such as the pipe inclination angle, density difference, viscosity and pipe rotation speed. In particular, the results show in detail how the interpenetration front velocities vary with the pipe rotation speed. The results are quantitatively analyzed using the flow dimensionless groups, such as the Rossby number, and the characteristic velocities that describe the flow dynamics.
*This research has been supported financially by the Fonds de Recherche du Québec – Nature et technologies and the Canada Foundation for Innovation. S.L. acknowledges the Ph.D. scholarship provided by the China Scholarship Council.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DFD.A33.4
The American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics.
1 Physics Ellipse, College Park, MD 20740-3844
Editorial Office 1 Research Road, Ridge, NY 11961-2701 (631) 591-4000
Office of Public Affairs 529 14th St NW, Suite 1050, Washington, D.C. 20045-2001 (202) 662-8700