Numerical simulation of thermoacoustic waves in square cavity filled with water

ZHAN Liyuan; LI Yuhua; JIANG Yuyan; WANG Gang; TANG Dawei

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

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Numerical simulation of thermoacoustic waves in square cavity filled with water

更新时间：2025-12-10

- Numerical simulation of thermoacoustic waves in square cavity filled with water
- CIESC Journal Issue S1, Pages: 32-38(2014)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.z1.006
  CLC： K121
- Online First：30 May 2014，
  
  Published：30 May 2014
- 稿件说明：
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ZHAN Liyuan, LI Yuhua, JIANG Yuyan, et al. Numerical simulation of thermoacoustic waves in square cavity filled with water[J]. CIESC Journal, 2014, (S1): 32-38.
DOI：

ZHAN Liyuan, LI Yuhua, JIANG Yuyan, et al. Numerical simulation of thermoacoustic waves in square cavity filled with water[J]. CIESC Journal, 2014, (S1): 32-38. DOI： 10.3969/j.issn.0438-1157.2014.z1.006.

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。

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.

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