摘要
为计算电厂烟风道设计中常见异形件的阻力,采用计算流体动力学方法研究了典型异形件的阻力系数。文章首先介绍了烟风道阻力计算的国内外的发展概况,然后建立了计算流体动力学计算结果与局部阻力系数之间的关系式,将典型部件的阻力系数计算结果与经验数据进行了对比,结果表明两者有一致性。最后给出了工程设计中2种常见的异形件压力损失与雷诺数的拟合公式。研究表明,应用计算流体动力学方法可以很好地解决烟风道异形件的阻力系数的计算问题。
The relationship between the result of Computational Fluid Dynamic and the local drag coefficient is established, and the drag characteristic of typical irregular parts is compared with the empirical data. The result of the drag coefficient of the two kinds of common irregular parts in the engineering design is givenm. The research indicates that, the method of Computational Fluid Dynamics can calculate the drag coefficient of the irregular parts in air and flue gas ducts appropriately.
出处
《电力科学与工程》
2006年第3期47-49,共3页
Electric Power Science and Engineering
关键词
烟风道
异型件
阻力特性
计算流体动力学
air and flue gas ducts
irregular parts
drag characteristic
Computational Fluid Dynamics
