CAJ | 학술논문

以轴承流体域为研究对象，建立螺旋油楔动静压滑动轴承三维 CFD（计算流体力学）计算模型。在计入润滑介质温黏效应的情况下，采用 Mixture 模型对新型轴承进行了汽液两相流的数值计算，计算得出了不同油腔螺旋角下轴承油膜的压力、温度及汽相油体积分数的分布情况，并分析了螺旋角与偏心率对轴承承载力、平均温升及汽相比例的影响规律。
이축승류체역위연구대상，건립라선유설동정압활동축승삼유 CFD（계산류체역학）계산모형。재계입윤활개질온점효응적정황하，채용 Mixture 모형대신형축승진행료기액량상류적수치계산，계산득출료불동유강라선각하축승유막적압력、온도급기상유체적분수적분포정황，병분석료라선각여편심솔대축승승재력、평균온승급기상비례적영향규률。
By taking the bearing flow field as the research object,a three dimensional CFD nu-merical model of the spiral oil wedge hybrid journal bearing was set up.The vapor liquid two phase flow considering the temperature viscosity effect was simulated with the mixture multiphase flow model.The pressure,temperature and vapor phase volume fraction distributions of the bearing oil film were obtained and the rules of bearing capacity,av-erage temperature rise and vapor proportion at dif-ferent spiral angles and eccentricity were analyzed.