SIMULATION OF OBLIQUE COALESCENCE OF A PAIR OF BUBBLES USING LEVEL SET METHOD

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HADIDI AMIN; ESHAGH NIMVARI MAJID; ANSARI MOHAMMADREZA

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Journal: Modares Mechanical Engineering Year:2018 | Volume:18 | Issue:2 Page(s): 331-341

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Title

SIMULATION OF OBLIQUE COALESCENCE OF A PAIR OF BUBBLES USING LEVEL SET METHOD

Author(s)

HADIDI AMIN | ESHAGH NIMVARI MAJID | ANSARI MOHAMMADREZA | Issue Writer Certificate

Keywords

OBLIQUE COALESCENCEQ1

INTERACTION OF BUBBLESQ1

LEVEL SET METHODQ1

GEOMETRICAL MASS CONTROLQ1

Abstract

In this research, interaction and OBLIQUE COALESCENCE of bubbles under buoyancy force was simulated, numerically. The governing equations are continuity and momentum equations which have been discretized using the finite volume method and the SIMPLE algorithm. For simulating the interface of two phases, the LEVEL SET METHOD has been incorporated. LEVEL SET METHOD suffers from poor mass conservation of dispersed phase especially in the case of severe deformation of interface. In order to control of mass conservation of the LEVEL SET METHOD, re-initialization equations and a geometric mass control loop are used which this loop is implemented in the LEVEL SET METHOD for the first time in this research. Using proposed geometric mass control loop, mass dissipation drawback of the LEVEL SET METHOD is handled in simulation of bubbles’ coalescence. The results outlined in the present study well agree with the existing experimental results. Also results of investigation of mass dissipation of the proposed scheme to simulation of OBLIQUE COALESCENCE problem show that the maximum amount of this mass dissipation was less than 4%. Therefore, the LEVEL SET METHOD with proposed geometric mass control loop could be used properly for simulation of oblique interactions and coalescence of bubbles in multiphase flows.

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APA: Copy

HADIDI, AMIN, ESHAGH NIMVARI, MAJID, & ANSARI, MOHAMMADREZA. (2018). SIMULATION OF OBLIQUE COALESCENCE OF A PAIR OF BUBBLES USING LEVEL SET METHOD. MODARES MECHANICAL ENGINEERING, 18(2 ), 331-341. SID. https://sid.ir/paper/178652/en

Vancouver: Copy

HADIDI AMIN, ESHAGH NIMVARI MAJID, ANSARI MOHAMMADREZA. SIMULATION OF OBLIQUE COALESCENCE OF A PAIR OF BUBBLES USING LEVEL SET METHOD. MODARES MECHANICAL ENGINEERING[Internet]. 2018;18(2 ):331-341. Available from: https://sid.ir/paper/178652/en

IEEE: Copy

AMIN HADIDI, MAJID ESHAGH NIMVARI, and MOHAMMADREZA ANSARI, “SIMULATION OF OBLIQUE COALESCENCE OF A PAIR OF BUBBLES USING LEVEL SET METHOD,” MODARES MECHANICAL ENGINEERING, vol. 18, no. 2 , pp. 331–341, 2018, [Online]. Available: https://sid.ir/paper/178652/en

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