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The Stokes flow induced by the motion of an elastic massless filament immersed in a two-dimensional fluid is studied. Initially, the filament is deviated from its equilibrium state and the fluid is at rest. The filament will induce fluid motion while returning to its equilibrium state. Two different test cases are examined. In both cases, the motion of a(More)
Capturing airborne particles from air into a liquid is a critical process for the development of many sensors and analytical systems. A miniaturized airborne particle sampling device (microimpinger) has been developed in this research. The microimpinger relies on a controlled bubble generation process produced by driving air through microchannel arrays. The(More)
Heat transfer enhancement during phase change is important in design of latent heat thermal energy storage system. This paper presents a numerical study of heat transfer enhancement during solidification in concentric cylindrical horizontal annulus through dispersion of nanoparticle. An enthalpy porosity technique with finite volume approach was used to(More)
Numerical investigation of the laminar mixed convection in two-dimensional lid driven cavity filled with water-Al 2 O 3 , water-Cu or water-TiO 2 nanofluids is done in this work. In the present study, the top and bottom horizontal walls are thermally insulated while the vertical walls are kept at constant but different temperatures. The governing equations(More)
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