고속도로 터널의 계측기 신뢰도 검증을 위한 3차원 수치해석

The purpose of this report is to validate the reliability of CO(carbon-monoxide) sensors in a road tunnel for tunnel ventilation The CO concentrations have been calculated using 3-dimensional CFD(computational fluid dynamics) The CO concentrations of the area weighted average and the sensor location have been compared in order to validate the reliability of sensors The CO concentrations of the area weighted average were several limes higher than those of the sensor location because sensors were located near tunnel wall and velocity magnitudes of cross section were small. From these comparisons, it is found that the CO concentrations from sensors are not reliable so the corelations between CO concentrations from sensor and those of the area weighted average are needed.