Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/4274
Title: Flow-regimes Study of Two-phase N2 Flow in A Vertical Microchannel: A Numerical Exercise
Authors: Saxena, Adhyan
Choudhary, Ramaraman
Ghosh, Suman
Keywords: Flow-regime
Two-phase N2
Volume fraction
FVM-based VOF coupled with Lee model
Microchannel
Issue Date: Dec-2023
Citation: 10th International and 50th National Conference on Fluid Mechanics and Fluid Power (FMFP) IIT Jodhpur, India, 20-22 December 2023
Abstract: A numerical attempt is made to explore the time variation of two-phase nitrogen flow-regimes in a microchannel in the presence of a heat interaction between the ambient and the cryogen across the tube wall due to the existence of a huge temperature gradient. The FVM-based VOF model coupled with Lee’s phase change model is employed to get the numerical results. To study the generated flow-regimes and the associated flow characteristics, three different mass flow rates are considered, and for each, three different heat fluxes across the wall are chosen. The bubbly flow-regime is observed just at the start of the boiling, and gradually, it is converted to slug flow with a short transitional period of confined bubble flow. The transition from bubbly flow to slug flow is delayed at higher mass flow rates.
Description: Copyright belongs to proceeding publisher
URI: http://hdl.handle.net/2080/4274
Appears in Collections:Conference Papers

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