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.