Numerical Simulation and Experimental Studies on Falling Film Outside Elliptical Tube (I)：CFD Simulation

Abstract In this paper，theoretical analysis and Computational Fluid Dynamics (CFD) study on falling film process of elliptical tubes for seawater desalination was conducted.And the results were also compared with that of the round pipes. A 3D numerical simulation of falling film flow is made using FLUENT software which has been further exploited with user defined functions (UFD)，the mathematical model was established by distributedparameter method.The simulation results show that the effect of the sectional shapes of elliptical tubes on falling film flow is obviously，the E=1.5 elliptical tube surface is relatively easy to form columnar flow，with the good uniformity characteristics of thin liquid film.When the inlet velocity is 0.8 m/s，the state of liquid distribution outside the elliptical tube is the best.

	Service

	Email this article
	Add to my bookshelf
	Add to citation manager
	Email Alert
	RSS
	Articles by authors
	QI Chun-Hua
	XU Ke
	FENG Hou-Jun
	Lv Qing-Chun

Keywords： elliptical tube fallingfilm flow numerical simulation

Cite this article:

QI Chun-Hua, XU Ke, FENG Hou-Jun, Lv Qing-Chun .Numerical Simulation and Experimental Studies on Falling Film Outside Elliptical Tube (I)：CFD Simulation[J] Chemcial Industry and Engineering, 2012,V29(4): 74-79