BLADE FOR WIND GENERATOR

摘要

PURPOSE: A blade for a wind power generator is provided to have a streamlined structure in which upper and lower portions are symmetrical and to reduce drag due to a dimple inwardly recessed on one of the top surface and the underside. CONSTITUTION: A blade for a wind power generator includes a head (100), a tail (200), and a body (300). The head is formed into a streamline shape, and the thickness of the head becomes decreased to an end portion. The tail is formed on a side opposite to the head and formed into a shape in which upper and lower portions are symmetrical to each other. The thickness of the tail becomes decreased to an end portion. The body is formed between the head and the tail. A dimple (400) inwardly recessed is formed on one of the top surfaces and the undersides of the head and the body. The dimple includes a recessed unit (410), a protrusion unit (420), and a semicircular groove (430). The recessed unit is formed lengthwise to the left and right sides on the body. The protrusion unit is formed on one end portion of the recessed unit. The semicircular groove is formed on the other end portion of the recessed unit.