Numerical simulation of falling film flow and heat transfer characteristics on horizontal drop-shaped tubes
Based on the volume of fluid(VOF)model,numerical models of 2D horizontal tubes with the drop-shaped type are set up,and the influence of the inlet liquid temperature,the liquid flow rate,the tube spacing on the flow and heat transfer characteristics of falling film on the horizontal tubes are studied.The results show that the heat transfer coefficients increase with the increase of liquid flow rate and the tube spacing for the falling film flow outside the drop-shaped tube.As the inlet liquid temperature increases,the film thickness decreases while the heat transfer coefficient increases.
drop-shaped tubefalling film flowheat transferVOF model
万方数据
维普
