丁国良课题组的冷藏陈列柜模型研究论文发表在International Journal of Refrigeration

      International Journal of Refrigeration 2008年第3期刊出博士生余克志和丁国良教授等人所写的论文

Ke-zhi Yu, Guo-liang Ding, Tian-ji Chen. Modified two-fluid model for air curtains in open vertical display cabinets. International Journal of Refrigeration, 2008, 31 (3): 472 – 482

以下为论文摘要：

ABSTRACT

A modified two-fluid turbulence model is established to simulate the flow and heat transfer characteristics of air curtains in an open vertical display cabinet. The air exiting the back panel (AEBP), the inner air curtain and the outer air curtain are taken as the first fluid and described with the standard k _ 3 turbulence model (KE). The air outside the display cabinet is considered as the second fluid and calculated by the laminar model. Different from the existing two-fluid model, the mass transfer rate equation between the turbulent and the non-turbulent fluids is modified, and the face coefficient of honeycomb (the ratio of the effective area to the total area of honeycomb) is fetched with the volume fraction of air curtain in order to conveniently depict the blow characteristics of the honeycomb. The comparisons between the simulated temperatures and the experimental ones indicate that the modified two-fluid model (MTF) can give better agreement with the measurements than KE and two original two-fluid models (TF1 and TF2).