Numerical Simulation for Subcooled Boiling Flow Process of High Pressure Liquid

Ai Min Zhou; Yong Jiang; Jian Chen; Shi Zhong Wang

doi:10.4028/www.scientific.net/AMR.532-533.257

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 532-533Numerical Simulation for Subcooled Boiling Flow...

Numerical Simulation for Subcooled Boiling Flow Process of High Pressure Liquid

Abstract:

A numerical simulation has been performed for subcooled boiling process of high pressure liquid. On the basis of two-fluid model, the RPI model is used to calculate the mass transfer on the heating wall between gas-liquid two phases. The results show there is an obvious turning point on wall temperature along with flow direction，which demonstrates the onset point of subcooled boiling according to the variation of wall temperature. The fluid velocity isn’t in linear increase, which increases gradually at first and then increases sharply, which is the similar with that of void fraction. The gas-phase velocity is higher than that of liquid-phase and the difference increases gradually along with flow direction. The variation of two-phase pressure difference is similar with that of single-phase flow, which is mainly the gravity pressure difference. The study results better meet with experimental data, which verifies the accuracy of computational model.

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Periodical:

Advanced Materials Research (Volumes 532-533)

Pages:

257-261

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.532-533.257

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Online since:

June 2012

Authors:

Ai Min Zhou, Yong Jiang, Jian Chen, Shi Zhong Wang

Keywords:

Numerical Simulation, Subcooled Boiling, Two-Fluid Model , Void Fraction

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