蒸汽直接喷射冷凝过程中两相流特性的数值研究

闫良; 李振中; 刘汉周; 胡练; 步珊珊; 陈德奇

doi:10.7652/xjtuxb202110018

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蒸汽直接喷射冷凝过程中两相流特性的数值研究

更新时间：2025-07-09

- 蒸汽直接喷射冷凝过程中两相流特性的数值研究
- Numerical Investigation for Two-Phase Flow Characteristics in Direct Steam Injection Condensation Process
- 西安交通大学学报 2021年55卷第10期页码：157-163
- 作者机构：
  
  1. 重庆大学低品位能源利用技术及系统教育部重点实验室,重庆,400044
  2. 重庆大学能源与动力工程学院,重庆,400044
- 作者简介：
- 基金信息：
  
  : 2021-03-24。作者简介: 闫良(1989—),男,硕士生;李振中(通信作者),男,讲师。基金项目: 国家自然科学基金资助项目(U1867219,51806023)
- DOI：10.7652/xjtuxb202110018
  中图分类号： TL339
- 网络首发：2021-10-10，
  
  纸质出版：2021
- 稿件说明：
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闫良, 李振中, 刘汉周, 等. 蒸汽直接喷射冷凝过程中两相流特性的数值研究[J]. 西安交通大学学报, 2021,55(10):157-163.

Numerical Investigation for Two-Phase Flow Characteristics in Direct Steam Injection Condensation Process[J]. 2021, 55(10): 157-163.
闫良, 李振中, 刘汉周, 等. 蒸汽直接喷射冷凝过程中两相流特性的数值研究[J]. 西安交通大学学报, 2021,55(10):157-163. DOI： 10.7652/xjtuxb202110018.

Numerical Investigation for Two-Phase Flow Characteristics in Direct Steam Injection Condensation Process[J]. 2021, 55(10): 157-163. DOI： 10.7652/xjtuxb202110018.

摘要

为了获得泄压系统中蒸汽直接喷射冷凝过程两相流特征的变化规律

采用数值模拟方法

结合VOF两相流模型和冷凝相变模型

通过控制变量的方式研究了过冷水温和蒸汽入口压力对蒸汽喷射直接接触冷凝过程的影响

分析了不同工况下的冷凝两相流场特征。结果表明:过冷水温和蒸汽入口压力均对喷射水箱中的蒸汽羽流特征具有显著影响

更高的过冷水温和入口压力均会导致更大的蒸汽羽流长度和影响区域; 当过冷水温较低时

沿喷射轴线方向上蒸汽温度逐渐减小

而在过冷水温较高时

蒸汽温度先增加然后快速降低

这是因为来不及冷凝的蒸汽滞止在两相混合区之前; 随着蒸汽入口压力的降低

纯蒸汽区越短

且两相混合区的蒸汽体积分数下降速度越快。

Abstract

To reveal two-phase flow characteristics of direct steam injection condensation process in pressure relief system

combining VOF two-phase flow model with condensation phase change model

the influences of initial subcooled water temperature and steam inlet pressure on the direct contact condensation process of steam jet are numerically simulated and the characteristics of condensation two-phase flow field in different cases are analyzed. The results show that both subcooled water temperature and steam inlet pressure significantly affect the characteristics of steam plume in tank; higher subcooled water temperature and initial steam pressure lead to larger steam plume length and influence area. When the temperature of subcooled water is low

the steam temperature along the jet axis decreases monotonically and when the temperature of subcooled water is high

the steam temperature along the jet axis first increases and then decreases rapidly

which results from stagnation of the steam before the two-phase zone. With the decreasing steam inlet pressure

the pure steam zone gets shorter and the steam volume fraction decreases faster in the two-phase mixing zone.

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references

臧金光, 毕景良, 张妍, 等. 抑压水池热工水力特性数值模拟研究 [C]∥第十五届全国反应堆热工流体学术会议暨中核核反应堆热工水力技术重点实验室学术年会论文集. [S.l.]: 中国核学会, 2017: 1159-1164.

CHAN C K, LEE C K B. A regime map for direct contact condensation [J]. International Journal of Multiphase Flow, 1982, 8(1): 11-20.

CHUN M H, KIM Y S, PARK J W. An investigation of direct condensation of steam jet in subcooled water [J]. International Communications in Heat and Mass Transfer, 1996, 23(7): 947-958.

CHO S, SONG C H, PARK C K, et al. Experimental study on dynamic pressure pulse in direct contact condensation of steam discharging into subcooled water [C]∥ Proceedings of 1st Korea-Japan Symposium on Nuclear Thermal Hydraulics and Safety. Pusan, Korea: [s.n.], 1998: 291-298.

DE PETROVIC WITH A, CALAY R K, DE WITH G. Three-dimensional condensation regime diagram for direct contact condensation of steam injected into water [J]. International Journal of Heat and Mass Transfer, 2007, 50(9/10): 1762-1770.

WU Xinzhuang, YAN Junjie, LI Wenjun, et al. Experimental study on sonic steam jet condensation in quiescent subcooled water [J]. Chemical Engineering Science, 2009, 64(23): 5002-5012.

KIM Y S, YOUN Y J. Experimental study of turbulent jet induced by steam jet condensation through a hole in a water tank [J]. International Communications in Heat and Mass Transfer, 2008, 35(1): 21-29.

武心壮, 邱斌斌, 种道彤, 等. 单喷嘴蒸汽射流凝结引起的压力振荡研究 [J]. 西安交通大学学报, 2014, 48(1): 48-52.

WU Xinzhuang, QIU Binbin, CHONG Daotong, et al. Pressure oscillation induced by steam jet condensation in water through a nozzle [J]. Journal of Xi'an Jiaotong University, 2014, 48(1): 48-52.

GULAWANI S S, JOSHI J B, SHAH M S, et al. CFD analysis of flow pattern and heat transfer in direct contact steam condensation [J]. Chemical Engineering Science, 2006, 61(16): 5204-5220.

TANSKANEN V. CFD modelling of direct contact condensation in suppression pools by applying condensation models of separated flow [D]. Lappeenranta, Finland: Lappeenranta University of Technology, 2012: 89-95.

LI S Q, WANG P, LU T. Numerical simulation of direct contact condensation of subsonic steam injected in a water pool using VOF method and LES turbulence model [J]. Progress in Nuclear Energy, 2015, 78: 201-215.

张孟超. 蒸汽与过冷水直接接触冷凝特性研究 [D]. 北京: 华北电力大学, 2015: 36-47.

JI Yu, ZHANG Haochun, TONG Jianfei, et al. Entropy assessment on direct contact condensation of subsonic steam jets in a water tank through numerical investigation [J]. Entropy, 2016, 18(1): 21.

王洪彬. 含空气的蒸汽射流直接接触冷凝特性研究 [D]. 哈尔滨: 哈尔滨工程大学, 2018: 39-60.

ANSYS Inc. Fluent theory guide [Z/OL]. [2021-03-01]. https:∥ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v212/en/flu_th/flu_th.html.

王丽雯. 蒸汽-喷雾液膜直接接触冷凝过程二维数值模拟 [D]. 天津: 天津大学, 2016: 29-31.

LIU Zhenyu, SUNDEN B, YUAN Jinliang. VOF modeling and analysis of filmwise condensation between vertical parallel plates [J]. Heat Transfer Research, 2012, 43(1): 47-68.

YIN Zhan, WEN Jianjun, WU Yining, et al. Effect of non-condensable gas on laminar film condensation of steam in horizontal minichannels with different cross-sectional shapes [J]. International Communications in Heat and Mass Transfer, 2016, 70: 127-131.

KIM H Y, BAE Y Y, SONG C H, et al. Experimental study on stable steam condensation in a quenching tank [J]. International Journal of Energy Research, 2001, 25(3): 239-252.

苏明旭, 蔡小舒. 新的水和水蒸气热力性质国际标准IAPWS—IF97及计算软件 [J]. 锅炉制造, 2000(2): 45-48.

SU Mingxu, CAI Xiaoshu. Introduction of new water and steam properties LAPWS-IF97 and the software [J]. Boiler Manufacturing, 2000(2): 45-48.

XU Qiang, GUO Liejin, ZOU Suifeng, et al. Experimental study on direct contact condensation of stable steam jet in water flow in a vertical pipe [J]. International Journal of Heat and Mass Transfer, 2013, 66: 808-817.

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