EXPERIMENTAL RESEARCH AND FIELD SYNERGY ANALYSIS OF FLOW AND HEAT TRANSFER OUTSIDE A VIBRATORY TUBE
JIANG Bo1, TIAN Mao-cheng1, LENG Xue-li1, CHENG LIN1, CAO Bing-yang2
1. School of Energy Source and Power Engineering, Shandong University, Jinan 250061, China2. Department of Engineering Mechanics, Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China
Abstract： Experimental research and numerical simulation were carried on to study the flow and heat transfer characteristics outside a circular and an elliptical tube under vibration condition. The orthogonal design method was used to analyze the effect of amplitude, frequency and shape of the tube on heat transfer performance, and a fitting correlation between heat transfer and vibration parameters was obtained in the low-frequency area. Based on the field synergy theory, the dependence of the cosine value of synergy angle on the vibration frequency and amplitude was gained for the near-wall region. It is shown that heat transfer is significantly enhanced while the frequency increases, and rises to a peak value when resonance condition appears. Comparison between different kinds of vibration tubes indicates that heat transfer of elliptical tube with vibrating direction the same as its short axis is the best, round takes second place, and elliptical tube with vibrating direction the same as its long axis is the worst. And it is obtained that tube type is also an important factor affecting the heat transfer under vibrating condition.
姜波 田茂诚 冷学礼 程林 曹炳阳. 振动管外流动与传热实验研究及场协同分析[J]. , 2009, 28(5): 102-105.
JIANG Bo;TIAN Mao-cheng;LENG Xue-li;CHENG LIN;CAO Bing-yang. EXPERIMENTAL RESEARCH AND FIELD SYNERGY ANALYSIS OF FLOW AND HEAT TRANSFER OUTSIDE A VIBRATORY TUBE. , 2009, 28(5): 102-105.
2009, Vol. 28 
