Fig. 2: Cell classification model.
From: Investigation of viscous damping in perforated MEMS devices
a Schematic diagram of cell classification for the rectangular perforated plate. b Boundary conditions for internal cells. c Boundary conditions for edge cells. d Boundary conditions for corner cells. e Schematic of the viscous damping composition in the perforated cell. f Squeeze-film region. g Perforation region. h End effect region. i Flow transition region. The dashed line indicates the rotational symmetry axis of the cell, while the dotted line represents the cell boundaries
