Numerical Modeling of the Solidification Phase Change in a Pipe and Evaluation of the Effect of Boun

来源 :Journal of Thermal Science | 被引量 : 0次 | 上传用户:wffgwffg
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
A numerical solution to a two-dimensional model of flow and transient heat transfer involving solidification in a pipe has been established.Where the temperature of pipe wall is below the freezing point of fluid,phase change of flowing fluid and the influence of different boundary condition,such as pipe wall temperature,initial temperature and inlet velocity has been taken into account.Also it has been investigated to elicit proper non-dimensional numbers to show the solidification proceeding results.Additionally comparing the two acceptable inlet conditions,show distinctions between velocity inlet and pressure inlet boundary condition in such problems,which affect the whole freezing process. A numerical solution to a two-dimensional model of flow and transient heat transfer involving solidification in a pipe has been established. Here the temperature of pipe wall is below the freezing point of fluid, phase change of flowing fluid and the influence of different boundary condition , such as pipe wall temperature, initial temperature and inlet velocity has been taken into account. Al so it has been investigated to elicit proper non-dimensional numbers to show the solidification proceeding results.Additionally comparing the two acceptable inlet conditions, show distinctions between velocity inlet and pressure inlet boundary condition in such problems, which affect the whole freezing process.
其他文献
我相信,骄傲是和才能成正比的。但是,正如大才朴实无华,小才华而不实一样,大骄傲往往谦逊平和,只有小骄傲才露出一副不可一世的骄傲脸相。有巨大优越感的人必定也有包容万物、宽待众生的胸怀。  文明对于不同的人,往往进入其不同的心理层次。进入意识层次,只是学问;进入无意识层次,才是教养。  有两种人最不会陷入琐碎的烦恼,最能够看轻外在的得失。他们似是两个极端:自信者和厌世者。前者知道自己的价值,后者知道世
在VC界,比激情更重要的或许是一种人生态度。作为华人风险投资界的开拓者,十年间,刘宇环在中国投资的企业不少已是大名鼎鼎,不经意间他成为业界重量级的人物。 In the VC co
原铁道兵司令员李寿轩中将参加平江起义后,机智勇敢,逐渐成长为我军肩负重任的优秀指挥员。本文记述的,是他智勇兼备的几个片断。不畏强暴的苦孩子1906年4月22日,李寿轩出生
名师简介:张锡勤,男,1939年7月生,江苏扬州人。1944—1951年在扬州读小学,1951—1956年在扬州、苏州、长春读中学。1956年学业未完被留校,在长春银行学校任教师。1957—1961
1999年全国高考试题第4题要求考生判断加点成语运用的恰当与否,其中B项为:博物馆里保护着大量有艺术价值的石刻作品,上面的各种花鸟虫鱼、人物形象栩栩如生,美轮美奂。命题人
感光元件:1/6英寸 CCD变焦能力:10倍光学变焦/120倍数码变焦相片拍摄:80万像素存储介质:DVD-R/-RW/+RW尺寸:127×101×49mm重量:360g Sensing element: 1/6 inch CCD zoom
实验对比了熔剂中硫和镍的质量(mS和mNiO)变化对镍扣质量(mbutton)的影响,结果表明:mbutton主要受mNiO的控制,mS的变化对其影响则较小。采用X射线衍射(XRD)分析了6个不同mS、
A new kind of fiber optic oxygen sensing material based on the fluorescence quenching of Ru(bpy)_3Cl_2 was prepared by the themo-polymerization method.The ruthe
目的 :探讨前房维持系统在白内障术中的应用优势和操作要点。方法 :采用前房维持系统与可自行封闭的隧道切口结合对 919例 (14 19眼 )白内障患者施行手术治疗。结果 :证明该