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Paper
Title

Computational Simulation of Hydrodynamic Convection in Rising Bubble Under Microgravity Condition

Year: 1388
COI: JR_IJE-22-3_008
Language: EnglishView: 46
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Authors

Goodarz Ahmadi - Mechanical and Aeronautical Engineering, Clarkson University
M. Taeibi Rahni - Aerospace Engineering, Sharif University of Technology
M.H. Saidi - Mechanical Engineering, Center of Excellence in Energy Conversion,Sharif
Bahman Asadi - Mechanical Engineering, Center of Excellence in Energy Conversion

Abstract:

In this work, rising of a single bubble in a quiescent liquid under microgravity condition was simulated. The related unsteady incompressible full Navier-Stokes equations were solved using a conventional finite difference method with a structured staggered grid. The interface was tracked explicitly by connected marker points via hybrid front capturing and tracking method. One field approximation was used, while one set of governing equations was only solved in the entire domain and different phases treated as one fluid with variable physical properties. The interfacial effects are accounted for by adding appropriate source terms to the governing equations. The results show that the bubble moves in a straight path under microgravity condition, compared to the zigzag motion of bubbles in the presence of gravity. Also, in the absence of gravity and temperature gradients, the hydrodynamic effect can still cause the upward motion of the bubble. This phenomenon was explicitly shown in our results.

Keywords:

Hydrodynamic Convection , Microgravity Condition , Hybrid Front Capturing and Tracking Method , Rising Bubble

Paper COI Code

This Paper COI Code is JR_IJE-22-3_008. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/1392443/

How to Cite to This Paper:

If you want to refer to this Paper in your research work, you can simply use the following phrase in the resources section:
Ahmadi, Goodarz and Taeibi Rahni, M. and Saidi, M.H. and Asadi, Bahman,1388,Computational Simulation of Hydrodynamic Convection in Rising Bubble Under Microgravity Condition,https://civilica.com/doc/1392443

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