密闭二维腔内水中热声波的数值模拟

doi:10.3969/j.issn.0438-1157.2014.z1.006

化工学报 ›› 2014, Vol. 65 ›› Issue (S1): 32-38.DOI: 10.3969/j.issn.0438-1157.2014.z1.006

密闭二维腔内水中热声波的数值模拟

占丽媛^1,2, 李玉华^1,2, 姜玉雁¹, 王刚¹, 唐大伟¹

1. 中国科学院工程热物理研究所, 北京 100190;
2. 中国科学院大学, 北京 100190

收稿日期:2014-01-17 修回日期:2014-01-24 出版日期:2014-05-30 发布日期:2014-05-30
通讯作者: 李玉华
基金资助:
国家自然科学基金项目（51306186）。

Numerical simulation of thermoacoustic waves in square cavity filled with water

ZHAN Liyuan^1,2, LI Yuhua^1,2, JIANG Yuyan¹, WANG Gang¹, TANG Dawei¹

1. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China;
2. University of Chinese Academy of Sciences, Beijing 100190, China

Received:2014-01-17 Revised:2014-01-24 Online:2014-05-30 Published:2014-05-30
Supported by:
supported by the National Natural Science Foundation of China (51306186).

摘要/Abstract

摘要： 以边长为1 mm密闭二维腔中的液态水为研究对象，用数值计算的方法，通过在左侧边界施加阶跃温度或阶跃热流来产生热声效应。分析水中热声波的产生与传播特性，并研究右侧边界中点产生的热通量的强度。计算结果表明，在相同的热边界和几何边界条件下，液态水中热声效应引起的压力波幅值和热通量远大于空气；当加热阶跃温度不同时，水中产生的压力波幅值和热通量随温度升高而急剧增大；当阶跃热流加热时，压力波和热通量与阶跃温度加热时的有较大差异。

关键词: 数值计算, 热声波, 传热, 可压缩流体, 热力学

Abstract: The generation and propagation of thermoacoustic waves in a water-filled square cavity is numerically studied in order to investigate the effects of them on the heat transfer at the boundary. In all cases considered, the left wall of the cavity is rapidly heated with different heating methods to generate thermoacoustic waves. The results show that the amplitudes of pressure and heat flux waves at the middle point of the right wall in water are much larger than that in air under the same boundary conditions. The value of pressure and heat flux increases sharply with the overheat ratio. Under the constant heat flux boundary condition, the pressure average in water is higher, but the heat flux is lower than that in air during the computation.

Key words: numerical simulation, thermoacoustic waves, heat transfer, compressible fluid, thermodynamics

中图分类号:

TK121

占丽媛, 李玉华, 姜玉雁, 王刚, 唐大伟. 密闭二维腔内水中热声波的数值模拟[J]. 化工学报, 2014, 65(S1): 32-38.

ZHAN Liyuan, LI Yuhua, JIANG Yuyan, WANG Gang, TANG Dawei. Numerical simulation of thermoacoustic waves in square cavity filled with water[J]. CIESC Journal, 2014, 65(S1): 32-38.

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密闭二维腔内水中热声波的数值模拟

Numerical simulation of thermoacoustic waves in square cavity filled with water

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