数据中心空调实验室孔板送风气流组织模拟与分析.pdf

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Modeling and Simulation 建模与仿真, indirect evaporative cooling air conditioners and direct evaporative cooling air conditioners.
Based on the test requirements of the unit air conditioner used in the data room, the air supply
structure of the outdoor side room of the laboratory is designed. The air supply structure adopts
the method of side supply and top return, and the side adopts orifice plate to supply air. By means
of numerical simulation, the distribution rule of the velocity field and temperature field in the test
area are investigated when the orifice porosity is 26%, 12% and 6% respectively. According to the
analysis and simulation results, it shows that decreased porosity has a very weak effect on the
temperature field in the test area. When the porosity is 26%, the average surface velocity is
m/s, and when 6%, the average surface velocity is m/s. By observing the cloud map, it can be
seen that in the form of single-hole plate air supply, the wind speed on the windward side of the
tested machine is high and the wind speed fluctuates greatly. Therefore, this paper proposes the
air supply form of double-orifice plate throttling. Under this air supply form, the average wind
speed in the test area drops to m/s, and the speed distribution on the windward surface of
the tested machine is effectively improved.

Keywords
Airflow Organization, Numerical Simulation, Temperature Field, Velocity Field


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