周期性力场作用下窄通道内两相流压降特性

幸奠川, 阎昌琪, 孙立成, 金光远, 王洋

幸奠川, 阎昌琪, 孙立成, 金光远, 王洋. 周期性力场作用下窄通道内两相流压降特性[J]. 原子能科学技术, 2012, 46(增刊): 271-276. DOI: 10.7538/yzk.2012.46.suppl.0271
引用本文: 幸奠川, 阎昌琪, 孙立成, 金光远, 王洋. 周期性力场作用下窄通道内两相流压降特性[J]. 原子能科学技术, 2012, 46(增刊): 271-276. DOI: 10.7538/yzk.2012.46.suppl.0271
XING Dian-chuan, YAN Chang-qi, SUN Li-cheng, JIN Guang-yuan, WANG Yang. Investigation on Characteristics of Two=Phase Flow Pressure Drop in Narrow Channel Subject to Periodical Force[J]. Atomic Energy Science and Technology, 2012, 46(增刊): 271-276. DOI: 10.7538/yzk.2012.46.suppl.0271
Citation: XING Dian-chuan, YAN Chang-qi, SUN Li-cheng, JIN Guang-yuan, WANG Yang. Investigation on Characteristics of Two=Phase Flow Pressure Drop in Narrow Channel Subject to Periodical Force[J]. Atomic Energy Science and Technology, 2012, 46(增刊): 271-276. DOI: 10.7538/yzk.2012.46.suppl.0271

周期性力场作用下窄通道内两相流压降特性

Investigation on Characteristics of Two=Phase Flow Pressure Drop in Narrow Channel Subject to Periodical Force

  • 摘要: 通过实验研究了摇摆造成的周期性附加惯性力作用下矩形窄通道内空气水两相流压降特性。按分液相雷诺数将流动分为层流区(Ref <800)、过渡区(800≤Ref≤1 400)及湍流区(Ref >1 400)3个区域,并对各区域内附加压降、重位压降和摩擦压降平均值及瞬态值进行了比较。结果表明,附加惯性力对窄通道内两相流整数倍周期内平均摩擦阻力无明显影响。周期性附加惯性力作用下(摇摆周期16 s,摇摆振幅30°),层流区及过渡区气相表观速度、液相表观速度、质量含气率及摩擦压降随时间周期性波动,波动周期等于摇摆运动周期;瞬时摩擦压降相对于其平均值的波动幅值随气液两相流速的增加而减小。湍流区两相流动参数周期性波动不明显。

     

    Abstract: Characteristics of air-water two-phase flow pressure drop in narrow rectangular channel subjected to periodical additional inertia force caused by rolling motion were investigated experimentally. Time averaged and transient additional pressure drop, gravitational pressure drop and frictional pressure drop were compared in three different flow regions, namely, laminar flow region (Ref<800), transition flow region (800≤Ref≤1 400) and turbulent flow region (Ref >1 400). The results show that additional inertial force nearly has no influence on time-averaged frictional pressure drop in multiple rolling periods. Under periodical force condition (rolling period 16 s; rolling amplitude 30°), the superficial gas and liquid velocity, mass quality and frictional pressure drop fluctuate with the same periods of rolling motion, and the fluctuation amplitude of transient frictional pressure drop against its averaged value decrease as the gas and liquid velocity increase both in laminar and transition flow region. For the case in turbulent flow region, two-phase flow parameters have no evident periodical oscillation.

     

  • [1] ZHANG J H, YAN C Q, GAO P Z. Characteristics of pressure drop and correlation of friction factors for single-phase flow in rolling horizontal pipe[J]. Journal of Hydrodynamics, Ser B, 2009, 21(5): 614-621.
    [2] WEI J H, PAN L M, CHEN D Q, et al. Numerical simulation of bubble behaviors in subcooled flow boiling under swing motion[J]. Nuclear Engineering Design, 2011, 241: 2898-2908.
    [3] 谭思超,张红岩,庞凤阁,等. 摇摆运动下单相自然循环流动特点[J]. 核动力工程,2005,26(6):559-564.TAN Sichao, ZHANG Hongyan, PANG Fengge, et al. Characteristics of single-phase natural circulation under rolling[J]. Nucl Power Eng, 2005, 26(6): 559-564(in Chinese).
    [4] XING D C, YAN C Q, SUN L C, et al. Effects of rolling on characteristics of single-phase water flow in narrow rectangular ducts[J]. Nuclear Engineering and Design, 2012, 247: 221-229.
    [5] 幸奠川,阎昌琪,曹夏昕,等. 摇摆条件下单相水强制循环阻力特性实验研究[J]. 原子能科学技术,2011,45(6):672-676.XING Dianchuan, YAN Changqi, CAO Xiaxin, et al. Experimental study on forced circulation resistance characteristics of single-phase water flow under rolling condition[J]. Atom Energy Sci Tech, 2011, 45(6): 672-676(in Chinese).
    [6] YAN B H, YU L, YANG Y H. Effects of rolling on laminar frictional resistance in tubes[J]. Annals of Nuclear Energy, 2010, 37(3): 295-301.
    [7] 王广飞,阎昌琪,曹夏昕,等. 摇摆状态下窄矩形通道内两相流流型特性研究[J]. 原子能科学技术,2011,45(11):1329-1334.WANG Guangfei, YAN Changqi, CAO Xiaxin, et al. Flow pattern characteristics of two-phase flow through narrow rectangular channel under rolling condition[J]. Atom Energy Sci Tech, 2011, 45(11): 1329-1334(in Chinese).
    [8] LEE H J, LEE S Y. Pressure drop correlations for two-phase flow within horizontal rectangular channels with small heights[J]. International Journal of Multiphase Flow, 200l, 27(5): 783-796.
    [9] 王广飞,阎昌琪,孙立成,等. 窄矩形通道内两相流动压降特性研究[J]. 原子能科学技术,2011,45(12):1431-1436.WANG Guangfei, YAN Changqi, SUN Licheng, et al. Resistance characteristics of two-phase flow through narrow rectangular duct[J]. Atom Energy Sci Tech, 2011, 45(12): 1431-1436(in Chinese).
    [10] 周云龙,王红波. 矩形小通道内气液两相流垂直向上流动特性[J]. 化工学报,2011,62(5):1226-1230.ZHOU Yunlong, WANG Hongbo. Flow characteristics of gas-liquid two-phase flow in small vertical rectangular channel[J]. CIESC Journal, 2011, 62(5): 1431-1436(in Chinese).
    [11] 潘良明,张文志,陈德奇,等. 附加惯性力对气泡破裂的影响[J]. 核动力工程,2011,32(4):37-41.PAN Liangming, ZHANG Wenzhi, CHEN Deqi, et al. Effects of additional inertia force on bubbly breakup[J]. Nucl Power Eng, 2011, 32(4): 37-41(in Chinese).
    [12] 曹夏昕. 摇摆对竖直管内气液两相流型的影响[D]. 哈尔滨:哈尔滨工程大学,2006.
    [13] 张金红. 摇摆状态下气水两相流流型及阻力特性研究[D]. 哈尔滨:哈尔滨工程大学,2009.
    [14] JONES O C, ZUBER N. Slug-annular transition with particular reference to narrow rectangular ducts[C]∥Two-Phase Momentum, Heat and Mass Transfer in Chemical, Process and Energy Engineering Systems. Washington D. C.:[s. n.], 1979: 345-355.
    [15] ISHII M. One-dimensional drift-flux model and constitutive equations for relative motion between phases in various two phase flow regimes, ANL-77-47[R]. USA: ANL, 1977.
    [16] 高璞珍,庞凤阁,王兆祥. 核动力装置一回路冷却剂受海洋条件影响的数学模型[J]. 哈尔滨工程大学学报,1997,18(1):24-27.GAO Puzhen, PANG Fengge, WANG Zhaoxiang. Mathematical model of primary coolant in nuclear power plant influenced by ocean conditions[J]. Journal of Harbin Engineering University, 1997, 18(1): 24-27(in Chinese).
计量
  • 文章访问数:  932
  • HTML全文浏览量:  0
  • PDF下载量:  1075
  • 被引次数: 0
出版历程
  • 刊出日期:  2012-09-19

目录

    • 分享
    • 用微信扫码二维码

      分享至好友和朋友圈