Patent ID: 8910890

Claim:
A seeding device for supplying a wind tunnel with tracer particles jetted together with air from a nozzle of a seeder, the seeding device comprising: a collision surface inclined with respect to a jetting direction of the tracer particles from the nozzle; and a hood which covers the nozzle and the collision surface on an upstream side in an airflow direction in the wind tunnel, and which has an opening formed therein on a downstream side in the airflow direction, wherein among the tracer particles jetted from the nozzle, tracer particles having a large diameter collide with the collision surface and are trapped thereon, and tracer particles having a small diameter are supplied into the wind tunnel through the opening of the hood, wherein a flange is formed to extend over a substantially entire portion of the opening of the hood where the tracer particles supplied into the wind tunnel pass, the flange being folded inwardly at an obtuse angle.