首页 | 本学科首页   官方微博 | 高级检索  
     检索      

热声热机声场的格子气分析
引用本文:张晓青,吴迎文,张稳,邓玉瑾.热声热机声场的格子气分析[J].工程热物理学报,2010(2).
作者姓名:张晓青  吴迎文  张稳  邓玉瑾
作者单位:华中科技大学制冷与低温研究所;
基金项目:国家自然科学基金资助项目(No.50576024)
摘    要:从格子气自动机演化方程恢复了宏观热声方程,采用D2Q9热格子气模型模拟热声热机系统的压力场、温度场和速度场,获得压力驻波的传播和反射过程。模拟结果显示,在所给模拟条件下压力波具有非线性的特征,变截面附近的流场区域会产生引起非线性耗散的涡流。本文也分析了谐振管几何尺寸及格子气粒子密度对系统频率和压力的影响,验证了热声热机格子气模型的有效性。

关 键 词:格子气  热声热机  声场  涡流  

LATTICE GAS ANALYSES OF THERMO-ACOUSTIC FIELDS
ZHANG Xiao-Qing WU Ying-Wen ZHANG Wen DENG Yu-Jin.LATTICE GAS ANALYSES OF THERMO-ACOUSTIC FIELDS[J].Journal of Engineering Thermophysics,2010(2).
Authors:ZHANG Xiao-Qing WU Ying-Wen ZHANG Wen DENG Yu-Jin
Institution:Institute of Refrigeration and Cryogenics;Huazhong University of Science and Technology;Wuhan 430074;China
Abstract:Macroscopic thermoacoustic equations were recovered from lattice gas evolution equations. The pressure field,temperature field and velocity field in a thermoacoustic heat engine was simulated using D2Q9 thermal lattice gas model.The propagation and reflection process was simulated of thermoacoustic pressure standing wave in resonance tube.Simulated results demonstrate that pressure wave is with nonlinear feature under given simulation conditions,and that in the fluid field region nearby the changing section...
Keywords:lattice gas  thermoacoustic heat engine  acoustic field  vortex streaming  
本文献已被 CNKI 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号