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There is strong interest in being able to predict the air thermal distribution in data centers to have a better understanding of the problem so that cooling energy can be reduced. As experimental studies in data centers require exhaustive measurement efforts, CFD presents an alternative solution. A few of these studies were validated against experimental data, and relatively large errors were found...
The miner Anti-fire colloid preparation machine was designed referred to the principle of mixer designing in the chemical industry. The computational fluid dynamics (CFD) program FLUENT was used to simulate the inner flow of the colloid preparation machine which was filled with special fly ash slurry by the MRF method. Results of simulation showed the space of double-leaf arrangement had a significant...
Computational fluid dynamics (CFD) software FLUENT 6.3 has been employed in the present work to study the flow field and mixing process in a stirred tank equipped with four side-entering agitators. The multi-reference frame (MRF) and standard k-ε turbulent model were used in the simulation. The effects of tracer feeding, detecting positions and impeller speeds on mixing time were investigated. It...
In order to develop low energy consumption and high efficiency stirrer, authors have designed a new type of cylinder stirrer for low viscosity medium. In this article, CFD investigation of the flow field, power consumption and mixing time in lab-scale vessels by large height diameter ratio cylinder stirrer are performed. Three-dimensional time-dependent flow and mixing prediction have been carried...
The low-pressure turbine (LPT) stage is a common element of many modern jet engines. Its performance at cruise conditions is of great economical importance. Low-Reynolds number conditions and high blade loading can result in laminar separation from the suction side and performance degradation. For external aerodynamics problems, such as airfoils, low-Reynolds number conditions and large angles of...
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