【作者】 车耀坤；

【导师】 屈一新；

【作者基本信息】 北京化工大学 ， 化学工程， 2003， 硕士

【摘要】 随着计算机软、硬件技术的不断发展,一些新的方法越来越深入的运用到化工领域之中;撞击流是化工领域一个很有应用潜力的过程;合成气制备炉是针对目前我国的能源结构而作出的将高炉作为气化炉的新的设计。应用计算机模拟技术,本文分别对撞击流过程和合成气制备炉进行了数值模拟。首先,本文构造了计算撞击流流场分布的简化模型,并根据这一简化模型编制了 Fortran 程序,对撞击流过程的流场进行了模拟计算。根据程序计算的结果对撞击流流场内速度的分布进行分析发现:撞击流区域内的流场可分为三个区域——入口区、漩涡区和出口区;撞击流流场内存在着激波现象;撞击流的最大径向速度随喷嘴尺寸及入口流速的增大而增大,随喷嘴间距的增大而减小,最大径向速度对应的径向距离随喷嘴间距及喷嘴尺寸的增大都有一个最大值。其次,本文针对合成气制备炉建立了一个数学模型,并将此数学模型应用于 Phoenics 软件对合成气制备炉的计算中,计算的结果证明这套模型在模拟燃烧炉上的应用是行之有效的,从而为以后深入的研究奠定了基础。更多还原

【Abstract】 Some new methods have been applied in chemistry more and moredeeply with the development of hardware and software of computer.Impinging progress is a technique which has a lot of potential in chemicalengineering. Water-gas generating stove is a new apparatus designaccording to the configuration of the energy in our country. In this article,both impinging progress and water-gas generating stove are simulatedusing computer as the calculating tools.In the first, the simplified model for velocity distributing calculation ofimpinging stream is constituted. According to the model a Fortranprogram is wrote. Through the result of the program we draw theconclusion as follow: the impinging field can be define as threeregion-input region, whirlpool region and output region; there is aconcussion phenomena in the flow field; the maximum radial velocity ofimpinging stream become larger with the lessening of L and theincrement of d and uin, while the radial distance of the position of themaximum radial velocity have a maximum value with the increment of Land d. II<WP=5>北京化工大学硕士学位论文Additionally, a numerical model is composed for simulation ofWater-gas generating stove. Use this model, software named Phoenics isused to finish the simulation. According the result of simulation, themodel is proved to be valid in simulation of combustion stove.更多还原