Microfluidics

Overview Introduction:Origin, Definition, Benefits, Challenges, Commercial activities, Physics of miniaturization, Scaling laws;Micro-scale fluid mechanics:Intermolecular forces, States of matter, Continuum assumption, Governing equations, Constitutive relations - Gas and liquid flows, Boundary conditions, Slip theory, Transition to turbulence, Low Re flows, Entrance effects - Exact solutions, Couette flow, Poiseuille flow, Stokes drag on a sphere, Time-dependent flows, Two-phase flows, Thermal transfer in microchannels - Hydraulic resistance and Circuit analysis, Straight channel of different cross-sections, Channels in series and parallel;Capillary flows:Surface tension and interfacial energy, Young-Laplace equation, Contact angle, Capillary length and capillary rise, Interfacial boundary conditions, Marangoni effect;Electrokinetics:Electrohydrodynamics fundamentals