Suspensions of magnetic particles with diameters in the nanometer range exhibit longterm sedimentation stability as well as the possibility of magnetic field induced control of their properties and flow. One of the most famous field induced effects is the change of viscosity of the fluids due to the action of magnetic influences. An explanation of these effects on basis of microscopic models is...

Inkjet printing is a powerful microfabrication tool that has been applied to the manufacture of ceramic components. To successfully fabricate ceramic objects a number of conditions must be satisfied concerning fluid properties and drop placement accuracy. It has been proposed that fluids are printable within the bounds 1 <Z < 10 (where Z is the inverse of the Ohnesorge number) and these limits ...

A collaborative study initiated from the first annual European Union (EU) Concerted Action Group meeting (project PL 98-4032, 5-7 May 1999, Federal Research Centre for Virus Diseases of Animals, Tübingen, Germany) was organised between the Veterinary and Agrochemical Research Centre in Brussels, the Federal Research Centre in Tübingen and the OIE/FAO World Reference Laboratory for Foot-and-Mout...

• Current research project progress: Firstly, we studied the 3D compressible Navier-Stokes-Korteweg (NSK) system, which describes the motions of the compressible isothermal viscous capillary fluids. In [1], by using a general energy method, we obtain the optimal time decay rates of the solutions to the NSK system, when the initial datas are small perturbations of a given constant state (ρ̄, θ̄). ...

We report the results of experimental studies of the short-time-long-wavelength behavior of collective particle displacements in quasi-one-dimensional (q1D) and quasi-two-dimensional (q2D) colloid suspensions. Our results are reported via the q → 0 behavior of the hydrodynamic function H(q) that relates the effective collective diffusion coefficient D(e)(q), with the static structure factor S(q...

conclusions in conclusion, the suspension containing veegum 1%, sodium carboxy methyl cellulose 1%, glycerine 0.2%, sodium citrate 0.3% and sorbitol 20 % was chosen as the most physically stable formulation. results according to the results, glycerin (0.2%) and sodium citrate (0.3%) had the best effect on the suspension stability as wetting and flocculating agents, respectively. rheological pro...

Abstract Magnetic fluids are the suspensions composed of magnetic nanoparticles, surfactants, and non-magnetic carrier liquids. widely used in various fields, especially sealing, because their excellent features, including rapid response, flexible flow ability, tunable magneto-viscous effect, reliable self-repairing capability. Here, we provide an in-depth, comprehensive insight into theoretica...

Properties of soft materials are influenced by their anisotropic structuring under nonequilibrium fields. Although structure-property relationships have been extensively explored theoretically, comparison to experiments requires determination the microstructural orientation probability distribution function (OPDF) elements. Small angle scattering (SAS) measurements encode information about OPDF...

The lattice Boltzmann method (LBM) for computational fluid dynamics benefits from a simple, explicit, completely local computational algorithm making it highly efficient. We extend LBM to recover hydrodynamics of multi-component immiscible fluids, while retaining a completely local, explicit and simple algorithm. Hence, no computationally expensive lattice gradients, interaction potentials or c...

The mechanical properties of a suspension can be dramatically altered by adding a small amount of a secondary fluid that is immiscible with the bulk phase. The substantial changes in the strength of these capillary suspensions arise due to the capillary force inducing a percolating particle network. Spatial information on the structure of the particle networks is obtained using confocal microsc...