主催: 一般社団法人 日本機械学会
会議名: 第36回 計算力学講演会
開催日: 2023/10/25 - 2023/10/27
A two-phase flow simulation was applied to the flow in the bearing gap using the level set method and the ghost fluid method, which is a sharp interface model. The immersed boundary method was used to define an object with a herringbone-shaped hydrodynamic groove. As a result, the pressure at the bearing increased as the width of the hydrodynamic groove increased. In the two-phase flow simulation, the pressure was lower than in the single-phase flow case due to forming an air region in the groove. Visualization of the particle pathlines revealed that the accumulation of lubricant in the groove is dominated by flow entrainment.