IIR document

Investigation on air curtains behaviour in display cabinets by means of 3-D computational fluid dynamics.

Author(s) : D'AGARO P., CROCE G., CORTELLA G., et al.

Summary

3-D simulations have been performed by means of a commercial CFD code, to evaluate the airflow pattern and the air temperature distribution in a vertical display cabinet for frozen food. 3-D secondary vortices have been found at the side walls, providing the most important mechanism for ambient air entrainment in the case of cabinets of reduced length. Thus, 2-D simulations appear to be totally inadequate for such configurations, while only through 3-D computations the refrigeration power can be predicted with sufficient accuracy. The effects of longitudinal ambient air movements have been also investigated, showing that even low room air velocity, due to its interaction with the end-wall vortices, has a significant impact on cabinet performance.

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Pages: 2005-3

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Details

  • Original title: Investigation on air curtains behaviour in display cabinets by means of 3-D computational fluid dynamics.
  • Record ID : 2006-0810
  • Languages: English
  • Source: Commercial Refrigeration. Thermophysical Properties and Transfer Processes of Refrigerants. Proceedings of the IIR International Conferences.
  • Publication date: 2005/08/30

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