냉장고 내부의 냉기 유동특성에 관한 3차원 해석(I)

A numerical study has been performed on flow characteristics in a domestic refrigerator whose size is 540㎜×1,530㎜×680㎜, considering existence of a fan and evaporator. The flow field has been simulated with the low Reynolds number k-e turbulent model and SIMPLE algorithm based on the finite volume method. The region of fan which makes driving force for cold air distribution was modeled as a region in which momentum sources are generated uniformly. The concept of the distributed pressure resistance was applied to describe the momentum loss from evaporator. The result showed that the rate of cold air distribution into freezing room and cold storage room was almost 7 : 3.