格子玻尔兹曼方法在微观流场分析中的应用  

Application of Lattice Boltzmann Method in Microflow Field

作　　者：焦春晓 解忠良 吕芳蕊 塔娜[1] 饶柱石[1] JIAO Chunxiao;XIE Zhongliang;LV Fangrui;TA Na;RAO Zhushi(State Key Laboratory of Mechanical System and Vibration, Shanghai Jiaotong University, Shanghai 200240, Chin)

机构地区：[1]上海交通大学机械系统与振动国家重点实验室,上海200240

出　　处：《噪声与振动控制》2018年第A01期75-78,共4页Noise and Vibration Control

基　　金：国家自然科学基金资助项目(11672178)

摘　　要：为了探究大型重载水轴承微观流场的状态,采用无网格的粒子法—格子玻尔兹曼方法建立水润滑轴承微凸体的微观界面简化模型,探究轴承表面相邻的微凸体间的流体运动状态,分析流体的流线分布、压力分布以及在微凸体内形成的涡。研究结果表明该方法对于研究水润滑轴承微观流场的流体特性是可行的,为水润滑轴承动态特性计算和微观机理的探究提供了新的研究思路,为水润滑轴承微观界面进行深入研究提供一定的参考。In order to explore the state of the microflow field for large heavy water-lubricated bearing, the microinterface simplification model of the micro-convex body of water-lubricated bearing is established by using the meshless particle method-lattice boltzmann method. The fluid flow regime of the micro-convex body adjacent to the bearing surface is investigated, and the streamline distribution, pressure distribution, and vortices formed in micro-convex bodies are analyzed. The results show that this method is feasible to study the characteristics of the micro flow field of waterlubricated bearing. It provides a new idea for the dynamic characteristics simulation and microscopic mechanism research of the water-lubricated bearing, and some references for the research of water-lubrication bearing micro-interface.

关 键 词：振动与波 格子玻尔兹曼方法 水润滑轴承 微观流场 流线 压力分布 

分 类 号：O353.1[理学—流体力学]