NUMERICAL SIMULATION OF HEAT TRANSFER IN NUCLEATE POOL BOILING

WU Yuting; YANG Chunxin; YUAN Xiugan

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NUMERICAL SIMULATION OF HEAT TRANSFER IN NUCLEATE POOL BOILING

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- NUMERICAL SIMULATION OF HEAT TRANSFER IN NUCLEATE POOL BOILING
- CIESC Journal Issue 5, (2002)
- 作者机构：
  
  1. 清华大学工程力学系
  2. 北京航空航天大学飞行器设计与应用力学系
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 May 2002，
  
  Published：25 May 2002
- 稿件说明：
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WU Yuting, YANG Chunxin, YUAN Xiugan. NUMERICAL SIMULATION OF HEAT TRANSFER IN NUCLEATE POOL BOILING[J]. CIESC Journal, 2002, (5).
DOI：

WU Yuting, YANG Chunxin, YUAN Xiugan. NUMERICAL SIMULATION OF HEAT TRANSFER IN NUCLEATE POOL BOILING[J]. CIESC Journal, 2002, (5). DOI：

摘要

以沸腾壁为研究对象

以气泡或核心为边界建立了沸腾换热的数学模型

进行了核态池沸腾换热的直接数值模拟

模拟结果与现有的实验数据具有很好的一致性

从而验证了数值模拟的可靠性 .通过数值模拟得到了气泡影响面积系数和气泡扰动强度系数的计算方法

揭示了气泡等待时间和沸腾表面温度波动的非线性特征 .

Abstract

A mathematical model was proposed to describe the heat transfer in nucleate pool boiling.The model addressed the three-dimensional conduction heat transfer process within the problem domain comprised of the heating wall

and the effect of bubbles or sites was represented through boundary conditions.Numerical simulations were performed and a excellent agreement between the available experiment data and numerical simulating results were gained.By numerical simulation

the predicting methods of the bubble influence area factor and the flow strength parameter were obtained.In addition

the nonlinear characteristics of wall temperature variation and bubble wait time were identified.

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