GUO Fu-min, ZHAO Shun-an, YANG Zhi

China Institute of Water Resources and Hydropower Research, Beijing 100038, China

Abstract: A layer of water collecting devices is added under the filler in the cooling tower with high-level water collecting compared to the conventional. So the research on the water collecting devices’ resistance characteristics has great significance for calculating ventilation quantity of the cooling tower. This paper has studied the air flow characteristics of the water collecting devices through FLUENT software. It’s found that the drag coefficient value obtained through numerical simulation is not affected greatly by different drag coefficient fillers and the depths of the devices. At the same time, the results from calculation model are consistent with known experimental results. Therefore, the achievement on the water collecting devices by adopting this calculation model may provide reference for the research and design of the high-level water collecting cooling tower.

Key words: water collecting devices, resistance characteristics, flow around bluff body, porous medium

Published in: Journal of China Institute of Water Resources and Hydropower Research (Vol. 12 No. 1, 2014)