Numerical simulation of slip behaviors and friction reduction effects in hydrophobic micro-channel in laminar flow conditions

In the study, a numerical simulation of sliding properties rough and smooth surfaces with micro-structure was made. The shear flow in micro-channel performed ANSYS FLUENT software. 3-D two-phase is simulated by choosing volume fluid model. CFD analysis, water air consist two immiscible phases. calculations, if first second fluid, adjustments are At beginning channel considered to be completely filled effect gravity ignored during calculation. Water Newtonian incompressible fluids. addition, laminar steady-state calculations It found that decrease pressure drop increased increasing distance between asperities (no-shear fraction). results, approximately 14% velocity axis measured at interface. main purpose this study evaluate applicability model hydrophobic designed using Fluent