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A simulation model was developed to study static characteristic of ball bearing with annular orifices. The influence of pre-orifice diameter was discussed through simulation analysis. Simulation results show that for constant supply upstream pressure, the larger pre-orifice diameter is the larger volumetric flow rate of pre-orifice is; and for constant pre-orifice diameter, relation between volumetric...
The two dimensions model of aircraft pneumatic system with constant volume tank is established, the model includes constant volume tank, orifice and pipe. The heat transfer among the air inside the pneumatic system, pneumatic components and air outside the pneumatic system is involved in the simulation. The two dimensions unsteady flow field in charging and discharging tank is calculated. After charging...
The research of Particulate Matter (PM2.5) in the indoor environment is a significant research area in the indoor environmental technology. Unfortunately, this research area is in its infancy, and literatures relating to the study of the flow characteristics of PM2.5 in the indoor environment are rarely available. This paper aims to analyze the influence of ventilation mouth location, number, and...
In recent years, the infrared camouflage characteristics of spray have been studied widely, but there is few researches on the relationship between the characteristics of water mist and the SNR of missiles. Aiming at this problem, on the basis of the comprehensive analysis of water mist against infrared imaging missile complex process, the simulation model is established. Computer simulation experiment...
Large test data volume and high test power consumption are two major concerns for the industry when testing large integrated circuits. Linear decompress or-based compression (LDC) is efficient in reducing test data volume, while X-filling during ATPG can efficiently reduce test power with low overhead. However, traditional X-filling methods cannot be reused in the LDC environment. In this paper, we...
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