【摘要】 采用N-S方程对长5 cm、孔径5μm的圆孔型多孔光纤通道中气体流动的流场进行了数值模拟,并利用Albertoni模型和Sreekanth模型将一阶和二阶滑移边界条件引入到计算中。通过比较有、无速度滑移两类边界条件的模拟结果,发现在滑移流域内,滑移边界条件对流场的影响最大可达10%。此外,还探讨了多孔光纤微通道流动中气体压力与速度的范围,为后续实验工作的开展打下理论基础。更多还原

【Abstract】 The gas flow characteristics in a holey optical fiber with a diameter of 5μm and a length of 5 cm is studied using Navier-Stokes equations,in which first and second order slip boundary conditions are introduced with Albertoni and Sreekanth models,respectively.It is noted that the boundary slip conditions have significant influence on the flow distribution,as large as 10%,by comparing with the case without boundary slip.The ranges of flow pressure and velocity in the fiber channel are also discussed,which can be a guide to the future experimental work.更多还原