Numerical Model of Condensate Water Droplet Motion on Fin Surface under Dehumidifying Conditions
In order to understand the heat transfer and pressure drop mechanisms of fin and tube heat exchanger under dehumidifying conditions, a model of condensate water droplets moving on fin surface should be established firstly. Based on the force analysis of the condensate water droplet on fin surface, a...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Journal of Refrigeration Magazines Agency Co., Ltd.
2013-01-01
|
| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2013.04.064 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | In order to understand the heat transfer and pressure drop mechanisms of fin and tube heat exchanger under dehumidifying conditions, a model of condensate water droplets moving on fin surface should be established firstly. Based on the force analysis of the condensate water droplet on fin surface, a critical condition of the water droplet motion is obtained. With the surface tension is taken into account, which is defined by the contact angle and VOF method, a numerical model of condensate water droplet moving on fin surface is developed. Then an experiment is carried out to verify the numerical model. The average deviation between simulation results and experimental data for the contact angle is 2.11% and the maximum deviation is 2.51%, and the average deviation for water droplet velocity is 6.5% and the maximum deviation is 10%, which show the accuracy of the model. |
|---|---|
| ISSN: | 0253-4339 |