In this work, CFD Eulerian multiphase model with KTGFis used to investigate the flow behaviour of the ice slurry in 90° elbow bend pipe. The present model considered the particle-particle collisions along with particle-wall collisions. In the modeling of ice slurry flow various interfacial forces viz. drag force, lift force and turbulence dispersion force are considered. The solid phase viscosity is calculated as a sum of kinetic and collision viscosity component and the turbulence in the ice slurry flow is modeled by the per phase k-model. Simulation has been performed at velocity of 1 m/s, concentration of 10% and particle size of 0.25 mm for the bend radius ratios (R/r) of 2, 2.98 and 5.6. Apart from that, effect of particle size, velocity and concentration on solid particle distribution has also been investigated. Results show that, secondary flow is generated similar to single phase flow which influences the velocity, particle distribution and pressure drop.
In this investigation, surface treatment of ferrite nanoparticles were efficiently prepared by using amino propyl silane (APS). XRD which is a spectral analysis technique used for investigate the morphology and chemical structure of treated and normal ferrite nanoparticles. Ferrite nanoparticles epoxy composites were prepared by Modified ferrite nanoparticles (MFNs) with varying weight percentage and ferrite nanoparticles (FNs). XRD shown that MFNs was effectively modified with highly crystalline structure and silane surface treatment decreased the average particle size of FNs to ∼ 16.48 nm. Surface treatment of FNs enhanced the homogeneous dispersion of ferrite in epoxy resin and improved interfacial adhesiveness between MFNs and epoxy. Tribological property of Modified ferrite nanoparticles epoxy composite (MFNEs) compare to cured epoxy and normal ferrite nanoparticles epoxy composites (FNEs) has been enhanced due to surface treatment.
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