低温氢输送管路Taconis热声振荡数值模拟研究  

Numerical simulation study on taconis thermoacoustic oscillation in low temperature hydrogen transport pipeline

作　　者：张淇栋 厉彦忠[1] 马原[1] 王磊[1] 艾立强 吴胜宝[2] Zhang Qidong;Li Yanzhong;Ma Yuan;Wang Lei;Ai Liqiang;Wu Shengbao(Department of Refrigeration and Cryogenic Engineering,Xi’an Jiaotong University,Xi’an 710049,China;Research and Development Center,China Academy of Launch Vehicle Technology,Beijing 100076,China)

机构地区：[1]西安交通大学制冷与低温工程系,西安710049 [2]中国运载火箭技术研究院研究发展中心,北京100076

出　　处：《低温工程》2025年第1期36-42,共7页Cryogenics

基　　金：国家自然科学基金资助项目(52376013);国家自然科学基金重点资助项目(52332012)。

摘　　要：针对低温氢输送管路构建二维半开口半封闭管仿真模型,通过初始温度梯度与瞬态初始压力扰动加载,计算获得了低温氢Taconis热声振荡基本特性,并对比研究了温度梯度β、热冷端温度比α、热冷端长度比ξ、管径和管长5个因素对热声振荡压力振幅和频率的影响规律。结果表明:低温氢管路系统存在临界温度梯度和临界热冷端温度比,超过临界值系统会振荡。热冷端长度比存在两个临界值,在振荡区内,频率随ξ的增加而增大,振幅在ξ=1处达到最大值,而在ξ=1两侧逐渐衰减。振荡特性受α、β、ξ及管路几何结构的影响,实际工程中建议通过调整温度、管径和管长等来抑制振荡。A two-dimensional half-open and half-closed pipe simulation model was constructed for cryogenic hydrogen transport pipeline.The basic characteristics of cryogenic hydrogen Taconis thermoacoustic oscillation were calculated and obtained through initial temperature gradient and transient initial pressure disturbance loading.The influence of five factors,including temperature gradientβ,hot-cold end temperature ratioα,hot-cold end length ratioξ,pipe diameter and pipe length,on the pressure amplitude and frequency of thermoacoustic oscillation was compared and studied.The results indicate that there is a critical temperature gradient and a critical hotcold end temperature ratio in the low-temperature hydrogen pipeline system,and the system will oscillate beyond the critical value.There are two critical values for the hot-cold end length ratio.In the oscillation region,the frequency increases with the increase ofξ,and the amplitude reaches its maximum value atξ=1,while it gradually decays on both sides ofξ=1.The oscillation characteristics are influenced byα,β,ξand the geometric structure of the pipeline,in practical engineering,it is recommended to restrain oscillation by adjusting temperature,pipe diameter and pipe length.

关 键 词：Taconis 热声振荡 低温氢管路 压力振荡幅值 影响因素 数值模拟 

分 类 号：TK91[动力工程及工程热物理]