Effect of Cylindrical Particle Orientation on the Flow and Temperature Distribution
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Drag coefficient and average Nusselt number are a critical operating parameters in fluid-particle processes. In this paper, a 3-D computational fluid dynamics (CFD) software is established to investigate the influence of the particle angle orientation on these parameters. A series of particles (spherical and non-spherical) has been developed and corresponding simulations are validated using correlations with reasonable accuracy. The results show that the average Nusselt number increases slowly with the particle angle orientation increasing from 0° to 30°, and rapidly when the angle orientation increases from 45° to 90°. The behavior gives high heat transfer, especially on the upper and front side of the cylinder when the gas velocity is high.
KeywordsAngle orientation Average Nusselt number CFD simulation Cylindrical particle Drag coefficient
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