A Three-Dimensional Numerical Study of Convective Heat Transfer from a Window with a Venetian Blind

Marjanovic Lj. , Cook M. J. , Rees S. J., Hanby V.
window, convection, heat transfer, model
Year:
2004
Bibliographic info:
RoomVent 2004, 9th international conference in University of Coimbra - Portugal, 5-8th september 2004, pp 6, 8 Fig., 1 Tab., 6 Ref.

This paper studies in three-dimension the coupled convective and radiative heat transfer rate from awindow surface with adjacent venetian blind using a commercial CFD code. For this study the window surface was modeled as an isothermal vertical flat plate. The flow patterns (temperature and velocity fields) and convective heat transfer coefficient were investigated for different blade angles (00, 450, -450, 800). Comparisons were made with experimental and other theoretical research. The results of this paper confirm that a heat transfer from a vertical flat surface is influenced by the presence of a venetian blind and that for some geometries 3D simulation is essential in capturing the air flow field.

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