Parametric Study on the Influence of Geometrical Characteristics of Horizontal Wavy Surface on Nusselt Number: Solar Applications - Archive ouverte HAL Access content directly
Conference Papers Year : 2016

Parametric Study on the Influence of Geometrical Characteristics of Horizontal Wavy Surface on Nusselt Number: Solar Applications

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Abstract

In this paper a steady-state natural convection was numerically simulated in horizontal rectangular cavity with a sinusoidal bottom wavy wall. This new type of surface rarely studied and investigated. The vertical walls are insulated while the bottom surface maintained to higher temperature than the top surface. In this numerical simulation that based on our elaborated code. the investigated parameters are Rayleigh number that is fixed to Ra=106, the wave length λ varied from 1 to 6 and the amplitude of the wave A is changing from 0.10 to 0.20 with a step of 0.05 were chosen in order to analyze the effect of these parameters on the heat transfer and the flow fields in two dimensional (2-D) enclosure filled with air. It is found that the geometrical parameters has a significant influence on the heat transfer inside the cavity, and also the importance of this study occur in the different applications where this kind of phenomena is present such as cooling, drying systems and solar captors.
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Dates and versions

hal-02154003 , version 1 (12-06-2019)

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Y. Agrouaz, T. Bouhal, A. Jamil, Tarik Kousksou, Youssef Zeraouli, et al.. Parametric Study on the Influence of Geometrical Characteristics of Horizontal Wavy Surface on Nusselt Number: Solar Applications. Proceedings of 2016 International Renewable and Sustainable Energy Conference, IRSEC 2016, Nov 2016, Marrakech, Morocco, Morocco. pp.734-739, ⟨10.1109/IRSEC.2016.7983934⟩. ⟨hal-02154003⟩

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