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http://dx.doi.org/10.5407/jksv.2022.20.3.102

Flow characteristics validation around drain hole of fan module in refrigerator  

Jinxing, Fan (School of Mechanical Engineering, PNU)
Suhwan, Lee (School of Mechanical Engineering, PNU)
Heerim, Seo (School of Mechanical Engineering, PNU)
Dongwoo, Kim (School of Mechanical Engineering, PNU)
Eunseop, Yeom (School of Mechanical Engineering, Pusan National University (PNU))
Publication Information
Journal of the Korean Society of Visualization / v.20, no.3, 2022 , pp. 102-108 More about this Journal
Abstract
In the fan module of the intercooling refrigerator, a drain hole structure was designed for stable drainage of defrost water. However, the airflow passing through the drain hole can disturb flow features around the evaporator. Since this backflow leads to an increase in flow loss, the accurate experimental and numerical analyses are important to understand the flow characteristics around the fan module. Considering the complex geometry around the fan module, three different turbulence models (Standard k-ε model, SST k-ω model, Reynolds stress model) were used in computational fluid dynamics (CFD) analysis. According to the quantitative and qualitative comparison results, the Standard k-ε model was most suitable for the research object. High-accuracy results well match with the experiment result and overcome the limitation of the experiment setup. The method used in this study can be applied to a similar research object with an orifice outflow driven by a rotating blade.
Keywords
Flow Visualization; Particle Image Velocimetry; CFD Simulation; Turbulence Model;
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