全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

矩形通道内气泡脱离点数值模拟和实验研究

DOI: 10.3969/j.issn.1006-7043. 201202012

Keywords: 过冷流动沸腾, 气泡脱离点, 数值模拟, 矩形通道, 充分发展沸腾起始点

Full-Text   Cite this paper   Add to My Lib

Abstract:

关于过冷流动沸腾气泡脱离点(或称充分发展沸腾起始点,FDB)的研究大多局限在实验研究,缺少预测气泡脱离点的数值模拟模型和方法.建立了数值模拟过冷流动沸腾气泡脱离点的数学模型,利用Fluent实现了对气泡脱离点的数值模拟,并且对矩形通道内的气泡脱离点进行了实验研究.为了验证数值模拟结果的准确性,分别对比了圆管、矩形通道内数值模拟结果和经典模型计算结果,并将双面加热矩形通道内数值模拟结果与实验结果进行对比.分析表明:根据本文模型,可以实现对过冷流动沸腾气泡脱离点位置的数值模拟,而且具有较高的准确度.源于圆管实验的Saha-Zuber模型和Bowring模型适用于双面加热矩形通道.

References

[1]  阎昌琪.气液两相流[M].哈尔滨:哈尔滨工程大学出版社, 2010: 50-55.
[2]  徐济?.沸腾传热和气液两相流[M]. 2版.北京:原子能出版社, 2000: 278-279, 280-282
[3]  周涛,杨瑞昌,刘若雷.自然循环欠热沸腾起始点特性[J].原子能科学技术, 2006, 40(2): 172-176. ZHOU Tao,YANG Ruichang,LIU Ruolei. Characteristic of onset of nucleate boiling in natural circulation[J]. Atomic Energy Science and Technology, 2006, 40(2): 172-176.
[4]  秦胜杰.摇摆对自然循环气泡脱离点影响的实验研究[D].哈尔滨:哈尔滨工程大学, 2007. QIN Shengjie.Experimental study on bubble departure in natural circulation under rolling condition[J].Harbin:Harbin Engineering University, 2007.
[5]  SUN Qi,YANG Ruichang,ZHAO Hua. Predictive study of the incipient point of net vapor generation in low-flow subcooled boiling [J]. Nuclear Engineering and Design,2003, 225(2/3): 249-256.
[6]  KURETA M,HIBIKI T, MISHIMA K, et al. Study on point of net vapor generation by neutron radiography in subcooled boiling flow along narrow rectangular channels with short heated length [J]. International Journal of Heat and Mass Transfer, 2003, 46(7): 1171-1181.
[7]  LI Y,YEOH G H,TU J Y.Numerical investigation of static flow instability in a low-pressure subcooled boiling channel[J].Heat and Mass Transfer,2004,40(5):355-364.
[8]  TU Jiyuan. On numerical modeling of low pressure subcooled boiling flows [J]. International Journal of Heat and Mass Transfer,2002,45(6):1197-1209.
[9]  樊普,贾斗南,秋穗正.低压下水欠热流动沸腾的两相CFD数值模拟研究[J].原子能科学技术,2011,45(4),412-420. FAN Pu,JIA Dounan,QIU Suizheng. CFD investigation of subcooled flow boiling model under low pressure [J]. Atomic Energy Science and Technology,2011,45(4),?412-420.?
[10]  BOSTIAN K,BORUT M. Modeling of low-pressure subcooled flow boiling using the RELAP5 code[J]. Nuclear Engineering and Design, 2003(220): 255-273.
[11]  ECKHARD K, ROLAND R. CFD for subcooled flow boiling: simulation of DEBORA experiments [J]. Nuclear Engineering and Design, 2011(241): 3851- 3866.
[12]  韩占忠,王敬,兰小平.FLUENT 流体工程仿真计算实例与应用[M].北京:北京理工大学出版社,2004:137-171.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133