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热声波数值模拟的虚假振荡研究
引用本文:刘继平,周志杰,种道彤,严俊杰.热声波数值模拟的虚假振荡研究[J].工程热物理学报,2006,27(4):658-660.
作者姓名:刘继平  周志杰  种道彤  严俊杰
作者单位:西安交通大学动力工程与多相流重点实验室,陕西,西安,710049
基金项目:国家自然科学基金;陕西省自然科学基金
摘    要:采用可压缩流动的SIMPLE算法对一维封闭空腔内由边界突然加热所引起的非稳态热声波进行了数值模拟,对流-扩散项采用了中心差分、一阶迎风差分、QUICK、及MIJSCL等不同格式。计算表明各种格式均存在不同程度的虚假振荡现象,其大小与热声波的强度及离散格式的形式等多种因素有关。这些结果对热声波的进一步研究及高效可靠的对流差分格式的开发具有重要意义。

关 键 词:热声对流  SIMPLE算法  数值振荡  可压缩流动
文章编号:0253-231X(2006)04-0658-03
修稿时间:2006年1月11日

NUMERICAL OSCILLATORY ON THE SIMULATION OF THERMOACOUSTIC WAVES
LIU Ji-Ping,ZHOU Zhi-Jie,CHONG Dao-Tong,YAN Jun-Jie.NUMERICAL OSCILLATORY ON THE SIMULATION OF THERMOACOUSTIC WAVES[J].Journal of Engineering Thermophysics,2006,27(4):658-660.
Authors:LIU Ji-Ping  ZHOU Zhi-Jie  CHONG Dao-Tong  YAN Jun-Jie
Abstract:The SIMPLE algorithm for compressible flows was introduced to predict the thermoacoustic wave in one-dimensional closed region. The thermoacoustic waves were generated by the impulsively rise of the temperature on the left wall, while the other walls were held at the initial temperature. Four different schemes were employed to deal with the convection-diffusion terms, i.e., CD, FUD, QUICK and MUSCL. The calculations and analysis showed that the numerical oscillatory occurred under all the four schemes, affected by the intension of the waves, type of schemes and other factors. The results benefit for the further investigation of the thermoacoustic waves and high efficiency schemes development.
Keywords:thermoacoustic convection  SIMPLE algorithm  numerical oscillations  compressible flow  
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