The optimum pitch angle for ceiling fan blade design significantly impacts efficiency, particularly when utilizing an airfoil section. The discussion highlights that while traditional ceiling fans often employ broad "paddle" blades, incorporating a tapered and twisted airfoil design can enhance performance. A starting chord of 6.5 inches, tapering down, is essential for achieving the desired aerodynamic benefits. This design approach contrasts with flat angled blades, which are less effective in ceiling fan applications.
PREREQUISITESMechanical engineers, product designers, and anyone involved in ceiling fan design and optimization will benefit from this discussion.
no one is replying me...zzzzzz.. tis article have show that the airfoil section for ceiling fan blade is practicalDanger said:I doubt that an "airfoil section" will make much difference over a flat angled blade in a ceiling fan situation. Most use very broad "paddles" as opposed to "propellors" such as an aeroplane would have. They just don't spin fast enough to use a narrow blade. It's hard to impart an airfoil shape to a fat one. I might be missing something here, though, so wait for a response from someone else.