炉内换热器管道气体绕流风吹声特性研究

来源 :2016年全国声学学术会议 | 被引量 : 0次 | 上传用户：ligang_nc2

【摘要】

：

炉管泄漏在运动过程中经过换热器管道,由于绕流所形成的次级辐射声会大大影响声场的声辐射特征.本文应用Fluent流体仿真软件,模拟炉内高温环境,基于二维大涡模拟分析管道周围非定常湍流流场,建立基于Lighthill声类比理论的气动噪声数值分析模型,利用涡声理论以及FW-H方程积分外推法求解声场.主要研究了管道绕流风吹声的流场以及声场特性.分析数值仿真结果表明:管道绕流在涡脱落频率下产生的噪声最大;平

【作者】

：

崔淑媛姜根山许伟龙刘月超

【机构】

：

华北电力大学数理系,保定071003

【出处】

：

2016年全国声学学术会议

【发表日期】

：

2016年12期

【关键词】

：

电站锅炉炉管泄漏管道风吹声声辐射特性

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炉内换热器管道气体绕流风吹声特性研究

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