Author(s): Nian Ye; Yiyi Ma

Linked Author(s):

Keywords: Ir entrainment; Air-water two phase flow; Deep tunnel system; Dropshaft; Pressure

Abstract: This study investigated the air-water flow characteristics along the tunnel under the effects of air entrainment by the upstream dropshaft under various downstream water levels and inflow rates. The air-water flow appearance was recorded and the pressure fluctuations along the tunnel were measured. Observed from the experiments, there are four flow patterns as the downstream water level increased, accompanied with different ways of air release. The most significant pressure fluctuations were observed at the air release points under all the experimental conditions. This study can contribute to a better understanding of the operation processes of a deep tunnel system.

DOI: https://doi.org/10.3850/iahr-hic2483430201-412

Year: 2024