Modelling of the near-wall liquid velocity field in subcooled boiling flow

被引：4
|
作者：
Ramstorfer, Franz [1 ]
Breitschaedel, Bernd [1 ]
Steiner, Helfried [1 ]
Brenn, Guenter [1 ]
机构：
[1] Virtual Vehicle Res Co, A-8010 Graz, Austria
来源：
HT2005: Proceedings of the ASME Summer Heat Transfer Conference 2005, Vol 2 | 2005年
关键词：
D O I：
10.1115/HT2005-72182
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The subject of the present work is the modelling of the liquid streamwise flow velocity in the two-phase boundary layer in subcooled boiling flow under the influence of the vapor bubbles. Subcooled boiling flow experiments were carried out in a horizontal test channel in order to investigate the interaction between the bubbles and the liquid phase. The heater surface was located at the bottom of the test channel. The near-wall liquid flow velocity was measured using a two-component laser-Doppler anemometer. Based on the experimental data a model is proposed to describe the impact of the gaseous phase on the motion of the liquid in the subcooled boiling regime. It was observed that the axial velocity profiles near the wall follow a logarithmic law similar to that used in turbulent single-phase flow over rough surfaces. Based on this finding it is suggested to model the influence of the bubbles on the liquid flow analogously to the effect of a surface roughness. The correlation developed for an equivalent surface roughness associated with the bubbles yields good agreement of the modeled axial velocity profiles with the experimental data.
引用
收藏
页码：323 / 332
页数：10
相关论文
共 50 条
  • [1] A photographic study on the near-wall bubble behavior in subcooled flow boiling
    Chang, SH
    Bang, IC
    Baek, WP
    [J]. INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2002, 41 (07) : 609 - 618
  • [2] Influence of near-wall modelling on boiling flow simulation
    Koncar, Bostjan
    Tiselj, Iztok
    [J]. NUCLEAR ENGINEERING AND DESIGN, 2010, 240 (02) : 275 - 283
  • [3] Velocity field in turbulent subcooled boiling flow
    Roy, RP
    Velidandla, V
    Katra, SP
    [J]. JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 1997, 119 (04): : 754 - 766
  • [4] Investigation on Characteristics of Temperature and Velocity Distribution Near Wall on Subcooled Boiling
    Xu, Lingmiao
    Li, Xiao
    Liu, Hongtao
    Tang, Jiguo
    [J]. Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics, 2024, 45 (08): : 2441 - 2445
  • [5] Multi-scale full-field measurements and near-wall modeling of turbulent subcooled boiling flow using innovative experimental techniques
    Hassan, Yassin A.
    [J]. NUCLEAR ENGINEERING AND DESIGN, 2016, 299 : 46 - 58
  • [6] Near-wall velocity of suspended particles in microchannel flow
    Hau, Winky L. W.
    Liu, Zhenyu
    Korvink, Jan
    Zengerle, Roland
    Ducree, Jens
    [J]. MEMS 2008: 21ST IEEE INTERNATIONAL CONFERENCE ON MICRO ELECTRO MECHANICAL SYSTEMS, TECHNICAL DIGEST, 2008, : 633 - +
  • [7] Critical Heat Flux and Near-Wall Boiling Behaviors in Saturated and Subcooled Pool Boiling on Vertical and Inclined Surfaces
    Sakashita, Hiroto
    Ono, Ayako
    Nyui, Junji
    [J]. JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 2009, 46 (11) : 1038 - 1048
  • [8] Particle velocity field measurements in a near-wall flow using evanescent wave illumination
    C. Zettner
    M. Yoda
    [J]. Experiments in Fluids, 2003, 34 : 115 - 121
  • [9] Particle velocity field measurements in a near-wall flow using evanescent wave illumination
    Zettner, CM
    Yoda, M
    [J]. EXPERIMENTS IN FLUIDS, 2003, 34 (01) : 115 - 121
  • [10] Unsteady model of wall-adjacent boiling subcooled liquid flow
    Levin, A. A.
    Chudnovsky, V. M.
    [J]. 4TH ALL-RUSSIAN SCIENTIFIC CONFERENCE THERMOPHYSICS AND PHYSICAL HYDRODYNAMICS WITH THE SCHOOL FOR YOUNG SCIENTISTS, 2019, 1359
12345