气液两相横向绕流错列管束上阻力系数和阻力脉动系数的试验研究  

Experimental Study of the Resistance Coefficient and Fluctuation Coefficient of a Staggered Tube Bundle Laterally Going Around by a Gas-liquid Two-phase Flow

作　　者：苏新军[1] 王栋[2] 林宗虎[2] 

机构地区：[1]天津商业大学天津市制冷技术重点实验室,天津300134 [2]西安交通大学动力工程多相流国家重点实验室,陕西西安710049

出　　处：《热能动力工程》2013年第2期154-157,217,共4页Journal of Engineering for Thermal Energy and Power

摘　　要：采用电阻应变仪和梁式电阻应变传感器,试验研究了气液两相流横向冲刷三排错列排列管束时的阻力和脉动阻力系数.测试管采用30 mm的有机玻璃圆柱;气液两相流的流型为细泡状流;两相隙缝流雷诺数的范围为2.0×104～6.0×104;截面含气率的范围在0～0.30。试验发现,随着含气率的增加,圆柱上的的脉动阻力系数减小;随着Re数的增大,脉动阻力系数减小。错列圆柱上的阻力系数随含气率的增加而增加。By using a resistance strain meter and a beam type resistance strain sensor,experimentally studied were the resistance coefficient and fluctuation resistance coefficient of a staggered tube bundle in three tows laterally swept by a gas-liquid two-phase flow.Organic glass cylinders with a diameter of 30 mm were used as the tubes for testing,the flow pattern of the gas-liquid two-phase flow was of cell shape and the Reynolds number of the two-phase gas flow was within a range from 2.0×104 to 6.0×104 with the void fraction in the section ranging from 0 to 0.30.It has been found from the test that with an increase of the void fraction and the Reynolds number,the fluctuation resistance coefficient of the cylinders will decrease while the resitance coefficient of the staggered cylinders will increase with an increase of the void fraction.

关 键 词：气液两相流 脉动阻力系数 隙缝流 错列管束 

分 类 号：O359[理学—流体力学]