کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
612075 | 880690 | 2007 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effect of friction between particles in the dynamic response of model magnetic structures Effect of friction between particles in the dynamic response of model magnetic structures](/preview/png/612075.png)
A simple particle-level simulation model that takes into account interparticle friction forces is developed to describe the dynamic response of magneto-rheological fluids. The results obtained for single-width particle chains are found to be in good agreement with slender body theory predictions [J. de Vicente, M.T. López-López, J.D.G. Durán, G. Bossis, J. Colloid Interface Sci. 282 (2005) 193]. The addition of side chains to a single-width one results in one order of magnitude increase of storage modulus and relaxation. The double logarithmic plot of storage and loss moduli vs frequency gives a limiting slope of one when including friction forces between particles. Simulation results are found to be in agreement with experimental measurements on an iron/kerosene model MR-fluid.
Master curves corresponding to the dimensionless storage and loss moduli vs angular frequency for iron/kerosene MR-fluids in the viscoelastic linear region.Figure optionsDownload as PowerPoint slide
Journal: Journal of Colloid and Interface Science - Volume 316, Issue 2, 15 December 2007, Pages 867–876