基于Lighthill理论的吸油烟机噪声分析改善

Noise analysis and improvement of range hood based on Lighthill theory

基于Lighthill的声类比理论,对油烟机噪声进行分析,确定油烟机的主要噪声源,针对噪声的重要影响因素进行改型优化,采用κ-ω湍流模型对流场进行数值模拟分析,验证改型前后流量性能,得出有效降低噪声的方案,为以后的研究提供有价值的方向。

Based on Lighthill’s acoustic analogy theory,the noise of range hood is analyzed,the main noise source of range hood is determined,and the modification and optimization are carried out according to the important influencing factors of noiseκ-ωThe numerical simulation analysis of the flow field of the turbulence model is carried out to verify the flow performance before and after the modification,and the scheme of noise reduction is effective,which provides a valuable direction for future research.