水滴在流动油介质中的碰撞特性研究  

Research on collisional characteristic of water drops in the flowing oil medium

作　　者：周英贵[1] 袁竹林[1] 李大骥[1] 

机构地区：[1]东南大学洁净煤发电及燃烧技术教育部重点实验室,东南大学动力工程系,江苏南京210096

出　　处：《能源研究与利用》2005年第1期26-29,共4页Energy Research & Utilization

摘　　要：根据新型制冰方式,采用数值模拟方法对水滴在流动油介质中的传热、碰撞接触及合并特性进行了研究。对油水多相流动混合物中的连续介质油和离散水滴分别建立适时动态分布参数模型和颗粒轨道模型,模型建立过程中考虑到流体的适时物性参数、所喷入水滴粒径的变化,通过跟踪水滴轨迹,研究和获得了水滴在低温油介质中由水冻结成冰颗粒过程中所发生的碰撞和运动规律,为探讨新型制冰方法的可能性及实验研究打下了基础。According to the new method of ice production,this paper studied water particle collisions in the oil medium by numerical simulation.A transient mathematical model was used for the oil fluid and particle trajectory models were used for the discrete water particles.The details of transient parameters of liquid and the change of particle diameter were considered.The occurrence of collision times between particles was investigated and the related results were obtained in this paper.

关 键 词：流体冰 多相流动 颗粒碰撞 数值模拟 

分 类 号：TB61[一般工业技术—制冷工程]