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17 March 2006 Flow of magnetorheological fluids in channels with impregnated porous walls
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This work presents an experimental study to examine the flow properties of magneto-rheological fluids (MR) fluids in channel flow. The channel walls are non-ferrous porous surfaces impregnated with a MR fluid. The porous walls are impregnated with no flow through the porous media. Different porosity sizes and two different impregnation techniques are studied. The pressure drop and flow rate data are obtained for each porosity and impregnation technique. It is demonstrated that under an applied magnetic field, the impregnated porous wall surface increases the pressure drop significantly, when compared to a smooth surfaces with no porosities. The pressure drop can be increased by 65% without changing the channel size and MR fluid's properties.
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Barkan M. Kavlicoglu, Faramarz Gordaninejad, Xiaojie Wang, and Gregory Hitchcock "Flow of magnetorheological fluids in channels with impregnated porous walls", Proc. SPIE 6169, Smart Structures and Materials 2006: Damping and Isolation, 61690J (17 March 2006);

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