The Simulation of Interlayer Element at Triple Point of Liquid Nitrogen
Abstract
In this paper, apply VOF model, CSF model and RNG k-? turbulence model, the evaporation and condensation model to simulate
the physical process in the liquid nitrogen interlayer element, by changing the contact angle and gravity acceleration parameters to obtain the
changes of gas-liquid interface at triple point of liquid nitrogen and in space environment.The results show that when the contact angle is 90
degrees, gravity is zero and the contact angle is 10 degrees, gravity is 1g, gas-liquid interface has no significant changes.When the contact angle is more than 90 degrees, the wall climbing ability of liquid phase is very weak, the gas-liquid interface appears concave phenomenon.
the physical process in the liquid nitrogen interlayer element, by changing the contact angle and gravity acceleration parameters to obtain the
changes of gas-liquid interface at triple point of liquid nitrogen and in space environment.The results show that when the contact angle is 90
degrees, gravity is zero and the contact angle is 10 degrees, gravity is 1g, gas-liquid interface has no significant changes.When the contact angle is more than 90 degrees, the wall climbing ability of liquid phase is very weak, the gas-liquid interface appears concave phenomenon.
Keywords
Liquid nitrogen; VOF model; Contact angle; Microgravity
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[1] Ranade V V.Computational flow modeling for chemical reactor engineering[M]. MO, StLouis, USA:Academic Press, 2002.
[2] W. H. Lee. A pressure iteration scheme for two-phase flow modeling[M]. Washington, USA:Hemisphere Publish, 1980: 407-427.
[3] J. U. Brackbill, D. B. Kothe, and C. Zemach.A Continuum Method for Modeling Surface Tension[J]. J. Comput. Phys, 1992, 100:335354.
DOI: http://dx.doi.org/10.18686/eph.v2i2.4146
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