Abstract
An experimental investigation of particle accumulation on a single wire in the transverse HGMS configuration is presented. For saturation buildup we obtain a monotonic decrease of the coefficient of static frictionf sat with the flow velocityv a on the basis of the “friction model”. The power law of the dependence of the saturation accumulation area onv a , predicted by this model, is experimentally verified. Furthermore, we present an empirical law describing the dependence of the accumulation area on timeτ and on flow velocityv a for the entire buildup process. From the investigation of the initial accumulation we conclude that existing theories of the so-called capture radius do not satisfactorily describe the situation near the end of a capture wire.
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References
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