A NUMERICAL STUDY OF BUBBLY FLOW IN A CURVED DUCT USING FRONT TRACKING METHOD

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MEHRABANI MOHAMAD TAGHI; HEYRANI NOBARI MOHAMAD REZA

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Journal: Modares Mechanical Engineering Year:2016 | Volume:16 | Issue:2 Page(s): 179-188

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Information Journal Paper

Title

A NUMERICAL STUDY OF BUBBLY FLOW IN A CURVED DUCT USING FRONT TRACKING METHOD

Author(s)

MEHRABANI MOHAMAD TAGHI | HEYRANI NOBARI MOHAMAD REZA | Issue Writer Certificate

Keywords

CURVED DUCTQ1

MULTIPHASE FLOWQ1

BUBBLEQ2

INCOMPRESSIBLE FLOWQ2

FINITE DIFFERENCEQ2

Abstract

In this article bubbly flow under the specified axial pressure gradient in a curved channel is studied numerically. To do so, a second order parallelized front-tracking/finite-difference method based on the projection algorithm is implemented to solve the governing equations including the full Navier-Stokes and continuity equations in the cylindrical coordinates system using a uniform staggered grid well-fitted to the geometry concerned. In the absence of gravity the mid-plane parallel to the CURVED DUCT plane, which is the symmetry plane in the single fluid flow inside the CURVED DUCT, separates the bubbly flow into two different flow regions not interacting with each other. Twelve BUBBLEs with diameters of 0.125 wall units are distributed in equally spaced distances from each other. The numerical results obtained indicate that for the cases studied here, the BUBBLEs reach the statistical steady state with an almost constant final orbital motion path due to the strong secondary field. Furthermore, the effects of different physical parameters such as Reynolds number, and curvature ratio on the flow field at the no-slip boundary conditions, are investigated in detail.

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APA: Copy

MEHRABANI, MOHAMAD TAGHI, & HEYRANI NOBARI, MOHAMAD REZA. (2016). A NUMERICAL STUDY OF BUBBLY FLOW IN A CURVED DUCT USING FRONT TRACKING METHOD. MODARES MECHANICAL ENGINEERING, 16(2), 179-188. SID. https://sid.ir/paper/178810/en

Vancouver: Copy

MEHRABANI MOHAMAD TAGHI, HEYRANI NOBARI MOHAMAD REZA. A NUMERICAL STUDY OF BUBBLY FLOW IN A CURVED DUCT USING FRONT TRACKING METHOD. MODARES MECHANICAL ENGINEERING[Internet]. 2016;16(2):179-188. Available from: https://sid.ir/paper/178810/en

IEEE: Copy

MOHAMAD TAGHI MEHRABANI, and MOHAMAD REZA HEYRANI NOBARI, “A NUMERICAL STUDY OF BUBBLY FLOW IN A CURVED DUCT USING FRONT TRACKING METHOD,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 2, pp. 179–188, 2016, [Online]. Available: https://sid.ir/paper/178810/en

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