基于网格非均匀离散的声学层析温度场测量

姚鹏搏; 沈国清; 韦来; 乔科慧

doi:10.19805/j.cnki.jcspe.2026.250089

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基于网格非均匀离散的声学层析温度场测量

基础研究 | 更新时间：2026-06-11

- 基于网格非均匀离散的声学层析温度场测量
- Acoustic Tomography Temperature Measurement Based on Grid Non-uniform Discretization
- 动力工程学报 2026年46卷第6期页码：36-43
- 作者机构：
- 作者简介：
  
  姚鹏搏(1993—),男,黑龙江七台河人,工学硕士,在读博士研究生,研究方向为燃煤电站的声学测温及燃烧优化。沈国清(通信作者),男,副教授,博导,博士,E-mail:guoqingshen@ncepu.edu.cn。
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2026.250089
  中图分类号： TK39
- 纸质出版：2026
- 稿件说明：
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姚鹏搏, 沈国清, 韦来, 乔科慧. 基于网格非均匀离散的声学层析温度场测量[J]. 动力工程学报, 2026, 46(6): 36-43.
姚鹏搏, 沈国清, 韦来, 乔科慧. 基于网格非均匀离散的声学层析温度场测量[J]. 动力工程学报, 2026, 46(6): 36-43. DOI： 10.19805/j.cnki.jcspe.2026.250089.

DOI： 10.19805/j.cnki.jcspe.2026.250089

摘要

提出了一种基于网格非均匀离散的声学层析算法

定义了离散因子以量化网格单元在空间上的疏密分布特征

并且引入了格林双调和插值算法

对比分析了均匀离散、基于不同离散因子设置的非均匀离散、奇/偶数网格划分等多种离散方式的重建性能。结果表明:在测点较少时非均匀离散可以提高重建结果的精度

并且能更准确地重建温度场的峰值。此外

在重建单峰对称温度场时

奇数网格离散要比偶数网格离散更有优势。

Abstract

An acoustic tomography temperature measurement based on grid non-uniform discretization was proposed

and discretization factors were defined to quantify the sparse and dense distribution characteristics of grid cells in space. After which

Green's biharmonic interpolation algorithm was introduced

while comparisons and analyses were conducted on the reconstruction performance of various discretization methods

including uniform discretization

non-uniform discretization based on different discretization factor settings

and odd/even-numbered grid divisions. Results show that by non-uniform discretization with fewer measurement points

the accuracy of reconstruction results can be improved

and the peak value of temperature field can be reconstructed more accurately. In addition

when reconstructing the single-peak symmetric temperature field

odd-numbered grid discretization is prior to even-numbered grid discretization.

关键词

Keywords

references

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