Experiment and simulation of cold aisle partition impacting on thermal environment of a computer room

With a computer room as an object, develops a simulation model. With the measured data as boundary conditions, simulates the momentum attenuation at the air outlet of the rack by porous-jump method. Verifies the rationality of model by comparing the measured data with simulating data, and studies the influence of cold aisle partition on air rate and velocity. The results show that the exhaust air velocity of cabinet can meet the demand of national standard, the air velocity across the IT devices is larger in the upper zones to ensure the enough cooling capacity under the conditions of cold aisle partition, and the exhaust air velocity is obviously  decreased when cold aisle is not partitioned. The variation of heat load in computer room has little influence on exhaust air velocity of racks.