Experimental study of heat transfer and flow characteristics of liquid falling film on a horizontal fluted tube

2010 ◽  
Vol 46 (8-9) ◽  
pp. 841-849 ◽  
Author(s):  
A. M. I. Mohamed
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Flow Characteristics ◽  
Falling Film

Experimental study of the flow characteristics in a falling film liquid desiccant dehumidifier

2016 ◽  
Vol 23 (1) ◽  
pp. 157-165 ◽  
Author(s):  
Yimo Luo ◽  
Yi Chen ◽  
Dan Zhong ◽  
Yuanhao Wang ◽  
Hongxing Yang
Keyword(s):  
Experimental Study ◽  
Flow Characteristics ◽  
Falling Film ◽  
Liquid Desiccant

The Intertube Falling Film: Part 1—Flow Characteristics, Mode Transitions, and Hysteresis

1996 ◽  
Vol 118 (3) ◽  
pp. 616-625 ◽  
Author(s):  
X. Hu ◽  
A. M. Jacobi
Keyword(s):  
Heat Transfer ◽  
Flow Characteristics ◽  
Horizontal Tube ◽  
Falling Film ◽  
Flow And Heat Transfer ◽  
Transition Criteria ◽  
Continuous Sheet ◽  
Mode Transitions ◽  
Regime Map ◽  
Flow Regime Map

When a liquid film falls from one horizontal tube to another below it, the flow may take the form of discrete droplets, jets, or a continuous sheet; the mode plays an important role in the wetting and heat transfer characteristics of the film. Experiments are reported that explore viscous, surface tension, inertial, and gravitational effects on the falling-film mode transitions. New flow classifications, a novel flow regime map, and unambiguous transition criteria for each of the mode transitions are provided. This research is part of an overall study of horizontal-tube, falling-film flow and heat transfer, and the results may have important implications on the design and operation of falling-film heat exchangers.

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