Performance Evaluation Of Ceiling Fan Considering Bubble/ Dimple Shape Fan Blade

In this study, a preliminary design of Dimple Wing is presented along with a brief geometric evaluation of the attachment as a dimpled-surface modification suitable for conventional ceiling-fan blades.   In this analysis, the focus is placed on describing the design, evaluating the CAD and STL files, analyzing the physical prototype, and exploring the possible aerodynamic consequences associated with installation of a dimpled-surface on a rotating fan blade.   The preliminary evaluation sets the ground for further research as it is focused on design-related issues. Nonetheless, it should be noted that there are some uncertainties concerning scale and dimensions of the geometry, as well as details of the attachment and material. These aspects play an important role in determining whether the design is suitable for installation on a ceiling fan blade.   It has been shown that dimpled surfaces may affect the flow properties under certain conditions. Nonetheless, since the effects associated with the dimpled surfaces depend on geometry, flow regime, and operating parameters, results of studies on dimpled surfaces cannot be taken as an evidence of improved performance of ceiling fans.   Unfortunately, no validated CFD simulations and no experimental measurements have been conducted. As a result, the effect of Dimple Wing on airflow delivery, electric power consumption, rotational speed, noise, and efficiency remains unknown.

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