Annual Meeting 2005, Japan Association for Wind Engineering
Session ID : s6-6
Conference information
Measurement of the static aerodynamic forces on an umbrella
Details
In stormy days, there are many accidents of pedestrians who are holding an umbrella. It can be said that the behavior of the umbrella in wind is a problem related to human safety. We conducted a wind tunnel experiment basic characteristics of aerodynamic forces exerted on an umbrella. From the measurement of the static forces, it is shown that pitching moments is exerted on an umbrella leaning toward the upwind although the aerodynamic forces are small. On the contrary, when the umbrella is leaning toward downwind, the aerodynamic forces are large but stable.
