Abstract
The objective of this study is to develop an acoustic anemometer for dense wind speed field measurements in urban spaces. The advantage of this anemometer is its lower cost and ease of installation compared to existing measurement devices. The proposed anemometer calculates wind speed based on the sound incurred by the vibration of a string excited by Karman vortex street. Our previous report confirmed that wind speed can be estimated when the string is perpendicular to the wind direction. In this study, we experimentally verify that wind speed estimation is possible even when the string is inclined relative to the wind direction. Using a string with a diameter of D = 0.20mm, it was found that the wind speed component perpendicular to the string can be estimated within a relative error of 5% in a uniform flow.
