化工学报2019，Vol.70Issue(4)：1311-1317,7.DOI:10.11949/j.issn.0438⁃1157.20181000
双开口气波制冷机振荡管内流动机理实验研究
Experimental research on flow mechanism analysis in oscillating tube of double-opening wave refrigerator
摘要
Abstract
A double-opening refrigeration machine experimental platform was built to collect the dynamic pressure in the oscillating tube at different speeds, and the mechanism of the internal wave relationship of the gas-wave-cooling machine was studied. First, the experiment is simulated by a CFD (computational fluid dynamics) numerical simulation method, the simulated value agree fairly well with the experiment pressure data, which has proven that this simulation method has a high precision. Then,the flow waves diagrams under different rotation rate were plotted based on the experiment pressure data. It shows that when the temperature gap between high pressure gas and low temperature gas reaches maximum, reflect shock wave intensity is the lowest and the relation between waves is most reasonable. Finally, the compression wave oscillation phenomenon is analyzed, which comes to a conclusion that the oscillation increases low temperature gas temperature. When the rotation rate approaches the best optimal value, the weaker the wave energy is and the less its impact is.关键词
制冷/测量/实验验证/非定常流动/数值模拟Key words
refrigeration/measurement/experimental validation/unsteady flow/numerical simulation分类
化学化工引用本文复制引用
王静娴,郑友林,胡恒,魏蓓,李奇,胡大鹏..双开口气波制冷机振荡管内流动机理实验研究[J].化工学报,2019,70(4):1311-1317,7.基金项目
国家重大科技专项(2016ZX05066005-001,2016ZX05028-004-001) （2016ZX05066005-001,2016ZX05028-004-001）
