| 非均匀孔隙内加热丝上的沸腾核化现象 |
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| 引用本文： | 王芬,彭晓峰,陆建峰. 非均匀孔隙内加热丝上的沸腾核化现象[J]. 工程热物理学报, 2004, 0(Z1) |
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| 作者姓名： | 王芬 彭晓峰 陆建峰 |
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| 作者单位： | [1]清华大学热能工程系相变与界面传递现象实验室 [2]北京 |
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| 基金项目： | 国家自然科学基金重点项目(No.50136020) |
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| 摘 要： | 本文利用可视化实验台对非均匀孔隙内加热铂丝上的沸腾核化和气泡动力学特性进行可视化观测,分类整理和对比分析了不同条件下的实验现象。实验表明,非均匀孔隙内加热丝上的沸腾核化具有空间区域性,气泡动力学特性包括界面传递、干涸与湿润过程在不同特征区域,如角缝区、稀疏区和密集区呈现出各自特征。
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| 关 键 词： | 多孔球层 沸腾 核化 气泡动态特性 |
BOILING NUCLEATION PHENOMENA ON A HEATING WIRE IN NON-UNIFORM PORES |
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| WANG Fen PENG Xiao-Feng LU Jian-Feng. BOILING NUCLEATION PHENOMENA ON A HEATING WIRE IN NON-UNIFORM PORES[J]. Journal of Engineering Thermophysics, 2004, 0(Z1) |
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| Authors: | WANG Fen PENG Xiao-Feng LU Jian-Feng |
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| Abstract: | A visual experimental investigation was conducted to observe dynamic behavior of boiling on a heating wire embedded in non-uniform bead-packed pores. The experiments show that boiling nucleation was closely dependent upon the pore structure and dvnamic bubble behavior including interfacial transport, dryout/rewetting process were characterized in different regions, or narrow corner, sparse pore and/or main pore zone and tightly packed-zone, respectively. |
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| Keywords: | bead-packed structure boiling nucleation bubble dynamics |
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