The influence of liquid-gas velocity ratio on the noise of the cooling tower

被引：0
|
作者：
Yang, Bin [1 ,2 ]
Liu, Xuanzuo [1 ]
Chen, Chi [2 ]
Zhao, Zhouli [1 ,2 ]
Song, Jinchun [1 ]
机构：
[1] Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110819, Liaoning, Peoples R China
[2] Shanghai Baosteel Co, Shanghai 201900, Peoples R China
来源：
6TH INTERNATIONAL CONFERENCE ON COMPUTER-AIDED DESIGN, MANUFACTURING, MODELING AND SIMULATION (CDMMS 2018) | 2018年 / 1967卷
关键词：
FLOW;
D O I：
10.1063/1.5039036
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The noise from the cooling tower has a great influence on psychological performance of human beings. The cooling tower noise mainly consists of fan noise, falling water noise and mechanical noise. This thesis used DES turbulence model with FH-W model to simulate the flow and sound pressure field in cooling tower based on CFD software FLUENT and analyzed the influence of different kinds noise, which affected by diverse factors, on the cooling tower noise. It can be concluded that the addition of cooling water can reduce the turbulence and vortex noise of the rotor fluid field in the cooling tower at some extent, but increase the impact noise of the liquid-gas two phase. In general, the cooling tower noise decreases with the velocity ratio of liquid to gas increasing, and reaches the lowest when the velocity ratio of liquid to gas is close to 1.
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页数：6
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