13–15 Nov 2023
King Fahd Conference Center, KFUPM, Dhahran, KSA
Asia/Riyadh timezone

A CFD simulation of bubble Burst at Free Surface

Not scheduled
5m
King Fahd Conference Center, KFUPM, Dhahran, KSA

King Fahd Conference Center, KFUPM, Dhahran, KSA

KFUPM, Schools Rd, Building 60

Speaker

Ouallal Mohammed (University of Luxembourg)

Description

Abstract – In this paper, computational fluid dynamics modeling techniques to simulate the bubble bursting process and its ability to simulate the production of droplets for different bubble sizes are presented. A closed chamber is filled with fluid and air with the presence of bubbles in the fluid. The rising bubble eventually floats on the free surface forming a thin cap with a typical thickness of the order of 1 µm. To track the bubble cap, the mesh size must be reduced atleast 10 times.. In the current work, 2 droplets were obtained as a results of the bubble burst. This is encouraging numerical modeling results; however, the results are not sufficient for quantitative entrainment ratio analysis. The present work has emphasized the need for significantly higher computational power for a thorough analysis. The future work will focus on the simulation of single bubble, of various sizes, rising and bursting at the free surface. Each bubble size would correspond to a flow regime of discrete bubble column.

Primary author

Ouallal Mohammed (University of Luxembourg)

Co-authors

Afaque Shams (Mechanical Engineering) Osman Siddiqui (Mechanical Engineering)

Presentation materials

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