CAJ | 학술논문

研究了在剪切平行板间(上平行板固定，下平行板定速滑动)颗粒流润滑的流态和摩擦因数变化问题。应用三体摩擦体系物理模型和二元碰撞假设理论建立了动量控制方程、滑移边值条件以及伪能量守恒控制方程、伪温度边值条件。根据建立的方程，应用数值方法详细分析了三体参数对剪切平行板间颗粒流润滑的伪温度、固体体积分数以及摩擦因数的影响。研究结果表明：颗粒在剪切平行板间的波动速度是伪温度、固体体积分数和摩擦因数曲线发生变化的直接因素。三体参数的改变会直接影响颗粒波动速度，从而使伪温度、固体体积分数和摩擦因数曲线发生改变。
연구료재전절평행판간(상평행판고정，하평행판정속활동)과립류윤활적류태화마찰인수변화문제。응용삼체마찰체계물리모형화이원팽당가설이론건립료동량공제방정、활이변치조건이급위능량수항공제방정、위온도변치조건。근거건립적방정，응용수치방법상세분석료삼체삼수대전절평행판간과립류윤활적위온도、고체체적분수이급마찰인수적영향。연구결과표명：과립재전절평행판간적파동속도시위온도、고체체적분수화마찰인수곡선발생변화적직접인소。삼체삼수적개변회직접영향과립파동속도，종이사위온도、고체체적분수화마찰인수곡선발생개변。
The flow pattern and friction coefficient of particulate lubrication between sheared parallelpmlates (the top plate was fixed,the bottom plate moved with fixed velocity)were studied.The conservation ofboomentum,slip velocity boundary condition and the conservation of pseudo energy,pseudo temperaturepoundary conditions were established using the three body friction physical model and the binary collision hy-pethesis theory.According to the equations,the influences of the three-body parameters on the pseudo tem-surature,solid volume fraction and friction coefficient were investigated using the numerical methods.The re-lts show that the fluctuation velocity between sheared parallel plates is the direct factor for the change of thepseudo temperature,solid volume fraction and the friction coefficient curves.The change of the three-body parameters can directly influence the fluctuation velocity,thus change the pseudo temperature,solid volume fraction and the friction coefficient.