| 弱非线性热声理论模型的建立及简化 |
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| 引用本文： | 高波,罗二仓,陈燕燕,戴巍,胡剑英,喻力弘.弱非线性热声理论模型的建立及简化[J].工程热物理学报,2011(8):1277-1282. |
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| 作者姓名： | 高波 罗二仓 陈燕燕 戴巍 胡剑英 喻力弘 |
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| 作者单位： | 中国科学院理化技术研究所低温工程学重点实验室; |
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| 基金项目： | 国家自然科学基金重大项目(No 50890180);国家自然科学基金项目(No.10874190); 国家重点基础研究发展计划973项目(No.2010CB227303) |
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| 摘 要： | 本文指出非零的周期平均热声效应在本质上是非线性的，应保留到二阶精度。在小振幅条件下，利用摄动方法，以无限大平板流道为例，建立了二阶精度的弱非线性热声理论模型，并在不同条件下对模型做了进一步简化。这一理论为理解热声系统的工作机制以及设计优化热声系统提供了强有力的理论工具。
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| 关 键 词： | 弱非线性热声理论模型 周期平均热声效应 简化 |
Establishment and Simplify of the Weakly Nonlinear Thermoacoustic Model |
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| GAO Bo LUO Er-Cang CHEN Yan-Yan DAI Wei HU Jian-Ying YU Li-Hong.Establishment and Simplify of the Weakly Nonlinear Thermoacoustic Model[J].Journal of Engineering Thermophysics,2011(8):1277-1282. |
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| Authors: | GAO Bo LUO Er-Cang CHEN Yan-Yan DAI Wei HU Jian-Ying YU Li-Hong |
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| Institution: | GAO Bo LUO Er-Cang CHEN Yan-Yan DAI Wei HU Jian-Ying YU Li-Hong (The Key Laboratory for Cryogenic Technology Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China) |
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| Abstract: | The author pointed a new viewpoint that the non-zero time-averaged thermoacoustic effects should be considered as nonlinear effects in physical essence in this paper.For the thermoacoustic systems with small oscillating amplitude,a set of weakly nonlinear thermoacoustic models was developed and simplified for the parallel-plate flowing passages by using the nonlinear perturbation method.This nonlinear thermoacoustic theory may provide a deep insight and powerful theoretical tool to understand and design the... |
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| Keywords: | weakly nonlinear thermoacoustic model time-averaged thermoacoustic effects simplify |
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