Abstract
The departure-site spacing between liquid columns was measured for water,ethylene glycol,water and ethylene glycol binary mixture with volume fraction 0.5/0.5 on eight different orifice configurations with a visualization method.The influences of flow rate,tube spacing,surface structure and orifice configuration on departure-site spacing were investigated for the subcooled liquid columns flowing between horizontal tubes at the ambient temperature and normal pressure.Under the conditions of this study,the departure-site spacing increases with the decrease of Re for high-Ga flow.For a fixed Re,the departure-site spacing increases with the increase of tube spacing.The surface structure and thermo-physical properties of fluid influence the departure-site spacing.Bigger hole diameter brings smaller departure-site spacing at a fixed distance between adjacent holes,while larger distance between adjacent holes leads to larger departure-site spacing at a fixed hole diameter.
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