Numerical simulation of air distribution in large space data center based on zero equation turbulence model

Develops the zero equation turbulence model and the physical model of the data center, and studies the thermal environment of the data center through CFD simulation. Compares and analyses the distribution of temperature and velocity in different height levels. The results show that the temperature distribution is extremely uneven, and the temperature around the frame of hot spot is significantly higher. In idle area of right side, the vortex phenomenon is caused by the mixing of the two counter air flow, which forming the negative pressure zone and entraining the air of cooling channel, resulting in lots of energy consumption. Provides three improvement measures, such as cooling channel enclosure, baffle plate in right area of low-pressure, and partition wall at air conditioning side. Simulates the thermal environment of the data center under three conditions. The results show that the three methods can effectively improve the temperature distribution of the data center and eliminate the hot spots, which could achieve the efficient utilization of the cold energy.