以具有3个90°弯头和1个文氏管为特征的鞍钢新1号高炉热风炉助燃空气输送管路为物理模型,进行了流场仿真计算,预测到圆管内二次流旋涡、边界层分离的壁涡以及纵向旋转变化等同时存在的复杂流动特征,与过去的研究结果相一致,证实了管路中旋涡和非线性汇集、膨胀流与管壁之间的相互作用,是造成热风炉管路系统出现共振的激振力之一.从而提醒人们要注重合理的管路设计与工艺参数的结合,同时为热风炉系统的振动诊断分析提供了一种依据和方法.
参考文献
[1] | 章本照,印建安,苏霄燕,张金锁.旋转椭圆截面螺旋管道内的二次流[J].化工学报,2002(10):997-1002. |
[2] | Melling A;Whitelaw J H .Turbulent Flow in Rectangular Duct[J].Journal of Fluid Mechanics,1976,78:289-315. |
[3] | Bovendeerd P H M;Steenhoven A A;Vosse F N et al.Steady Entry Flow in a Curved Pipe[J].Journal of Fluid Mechanics,1987,177:233-246. |
[4] | ITO EIKAKU .Flow in Curved Pipes[J].Journal of Mech Soc,(B),1984,50(458):2267-2274. |
[5] | TADA SIGERU;YAMA NERYUCHIRO .Pulsatile Flow in Curved Pipes[J].Journal of Mech Soc,(B),1993,59(564):2377-2385. |
[6] | Naoya TAKAHASHI;Hiroyuki ISHII;Takeshi MIYAZAKI et al.Interaction between Ordered Vortex and Turbulence. The Japan Society of Fluid Mechanics[J].Fluid,2002,21:497-498. |
[7] | Huttl TJ.;Friedrich R. .Influence of curvature and torsion on turbulent flow in helically coiled pipes[J].International journal of heat and fluid flow,2000(3):345-353. |
[8] | Prapat SUNTIVARAKORN;Kazuo MATSUUCHI.Vortex-Vortex Interaction in Pipe Flow[J].The Japan Society of Fluid Mechanics Fluid,2002(21):68-77. |
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