An experimental and 2-D numerical analysis of the thermal-hydraulic characteristics of the converging-diverging tube

被引：0
|
作者：
Chen, Y [1 ]
Deng, XH [1 ]
Ding, XJ [1 ]
Wang, YJ [1 ]
Li, ZW [1 ]
机构：
[1] S China Univ Technol, Key Lab Enhanced Heat Transfer & Energy Conservat, Educ Minist, Guangzhou 510640, Peoples R China
来源：
PROCEEDINGS OF THE 3RD INTERNATIONAL SYMPOSIUM ON HEAT TRANSFER ENHANCEMENT AND ENERGY CONSERVATION, VOLS 1 AND 2 | 2004年
关键词：
D O I：
暂无
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Airflow and heat transfer in converging-diverging tubes are studied experimentally and numerically. For a fixed tube diameter (50mm), rib height (2.5mm) and space (28mm), three types of converging-diverging tubes with different length ratio of the converging and diverging sections and their joint ways have been investigated for different value of inlet velocity ranging from 5similar to15m/s. The experimental results indicate that the heat transfer is enhanced when the lengths of converging section increases to maximums. A 3%similar to13% increase of Nusselt number is observed and a 6%similar to46% increase of pressure drop is seen for the developed tube jointed linearly (DTL). Also a 1.5%similar to6% increase of Nusselt number is observed and a 46% increase of pressure drop is seen for the developed tube jointed convexly (DTC). 2-D numerical results of a turbulent model are compared with the experimental data.
引用
收藏
页码：652 / 658
页数：7
相关论文
共 50 条
  • [1] Investigation on thermal-hydraulic performance of nitrate molten salt nanofluids in enhanced tube with converging-diverging bulge
    Fu, Dianwei
    Niu, Junnan
    Zhang, Cancan
    Han, Songtao
    Wu, Yuting
    Lu, Yuanwei
    [J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2024, 149 (15) : 8617 - 8629
  • [2] Distribution characteristics and convergence of particles in converging-diverging tube
    Peng D.
    Feng Y.
    Wang Y.
    Tan Z.
    Yu T.
    Wu S.
    [J]. Huagong Jinzhan/Chemical Industry and Engineering Progress, 2022, 41 (09): : 4662 - 4672
  • [3] 2-D model for thermal-hydraulic analysis of helical-tube generators
    Yu, Yu
    Ju, Huaiming
    [J]. Qinghua Daxue Xuebao/Journal of Tsinghua University, 2004, 44 (09): : 1202 - 1204
  • [4] Experimental and numerical investigations of hydrogen-air premixed combustion in a converging-diverging micro tube
    Yang, Weijuan
    Deng, Chen
    Zhou, Junhu
    Liu, Jianzhong
    Wang, Yang
    Cen, Kefa
    [J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2014, 39 (07) : 3469 - 3476
  • [5] Thermal-hydraulic characteristics of nitric acid: An experimental and numerical analysis
    Alhasan, Meshal F.
    Alanezi, Khaled M.
    Alali, Sabah A. S.
    Al-Ebrahim, Meshari A.
    Bunian, Sara
    Nour, Amro A.
    [J]. HELIYON, 2024, 10 (01)
  • [6] Experimental and 3-d numerical analysis of the thermal-hydraulic characteristics of elliptic finned-tube heat exchangers
    Jang, JY
    Yang, JY
    [J]. HEAT TRANSFER ENGINEERING, 1998, 19 (04) : 55 - 67
  • [7] 3D numerical and experimental analysis for thermal-hydraulic characteristics of air flow inside a circular tube with different tube inserts
    Chiu, Yu-Wei
    Jang, Jiin-Yuh
    [J]. APPLIED THERMAL ENGINEERING, 2009, 29 (2-3) : 250 - 258
  • [8] Experimental investigation and numerical simulation of natural convection heat transfer in converging-diverging tube with twisted tapes
    [J]. Zhang, L.-S. (slzpaper@gmail.com), 1600, South China University of Technology (41):
  • [9] EXPERIMENTAL MEASUREMENT AND NUMERICAL MODELING OF CAVITATING FLOW IN CONVERGING-DIVERGING NOZZLE
    Rudolf, Pavel
    Hudec, Martin
    Zubik, Pavel
    Stefan, David
    [J]. EFM11 - EXPERIMENTAL FLUID MECHANICS 2011, 2012, 25
  • [10] Numerical simulation and field synergy analysis on laminar flow and heat transfer enhancement in a converging-diverging tube
    Xiao, CH
    Gui, YW
    Li, SM
    Zhu, GL
    [J]. PROCEEDINGS OF THE 3RD INTERNATIONAL SYMPOSIUM ON HEAT TRANSFER ENHANCEMENT AND ENERGY CONSERVATION, VOLS 1 AND 2, 2004, : 672 - 676
12345