Results 111 to 120 of about 4,727,160 (263)
Blending of Newtonian and Shear-Thinning Fluids in a Tank Stirred with a Helical Screw Agitator [PDF]
, 2000 Newtonian and non-Newtonian laminar fluid flow has been simulated using Computational Fluid Dynamics for a cylindrical vessel stirred by a helical screw agitator.
Aubin, Joelle +3 more
core +1 more source
Material Characterization of Lignin‐Filled Polypropylene Composites
Journal of Applied Polymer Science, EarlyView.Ground and spray‐dried lignin powders are compared as fillers for polypropylene composites. Differences in powder preparation methods are associated with differences in powder characteristics and composite behavior after melt compounding. Spray‐dried lignin produces smaller particles and fewer large agglomerates, while a 5 wt% lignin loading provides a
Sungjun Hwang +3 more
wiley +1 more source
A Combined Entropy/Phase-Field Approach to Gravity
Entropy, 2017 Terms related to gradients of scalar fields are introduced as scalar products into the formulation of entropy. A Lagrange density is then formulated by adding constraints based on known conservation laws.
Georg J. Schmitz
doaj +1 more source
Non-Newtonian Rheology of Igneous Melts at High Stresses and Strain Rates: Experimental Results for Rhyolite, Andesite, Basalt, and Nephelinite [PDF]
, 1990 The stress-strain rate relationships of four silicate melt compositions (high-silica rhyolite, andesite, tholeiitic basalt, and nephelinite) have been studied using the fiber elongation method.
Dingwell, Donald B., Webb, Sharon L.
core +1 more source
Journal of Applied Polymer Science, EarlyView.Plasma treatment enhances interfacial adhesion between LDPE/PA6 via carbonyl group formation. PA6 droplet size heterogeneity reduced to ~850 nm after plasma treatment. Drawing at 160°C produces highly oriented microfibrils with faster throughput. Plasma‐treated MFCs show up to 500% tensile strength increase and 18% higher stiffness.
Narges Gray +4 more
wiley +1 more source
A Novel Test for MOND: Gravitational Lensing by Disk Galaxies
The Astrophysical JournalDisk galaxies represent a promising laboratory for the study of gravitational physics, including alternatives to dark matter (DM), owing to the possibility of coupling rotation curves’ dynamical data with strong gravitational lensing (SGL) observations ...
Christopher Harvey-Hawes, Marco Galoppo
doaj +1 more source
Multiscale Modeling Approach of Slot Die Coating of Unidirectional Glass Fiber Fabric
Journal of Applied Polymer Science, EarlyView.2D macroscale and microscale computational fluid dynamic (CFD) models are combined in a multiscale approach to develop a model for slot die coating of glass fiber (GF) fabrics in cellulose nanocrystal (CNC) dispersion as a sizing. For slot die coating models with and without vacuum assist, the model is able to predict stable operating parameters which ...
Kim Anh Pham +4 more
wiley +1 more source
Comparison of modelling approaches for liquid fluidized beds
The Canadian Journal of Chemical Engineering, EarlyView.Abstract This study presents a comparison of three promising numerical models for the detailed simulation of liquid–solid fluidized bed. These models differ in their treatment of the solid phase, ranging from treating each particle individually to treating the collection of particles as a continuum.
Andreu Bernad‐Serra +3 more
wiley +1 more source
Non-Newtonian effects in silicate liquids and crystal bearing melts [PDF]
, 2009 High-silica volcanic systems are considered to be the most devastating. Their highly viscous properties create a high pressurised non- fluent system which consequently relaxes the stress mostly by exploding through the brittle regime.
Cordonnier, Benoit
core +1 more source
The Canadian Journal of Chemical Engineering, EarlyView.Abstract Accurately simulating multiphase flows at low capillary numbers remains challenging due to spurious currents and interface discretization errors. We present a systematic comparison of four volume‐of‐fluid (VOF) solvers within the OpenFOAM framework for pressure‐driven Poiseuille–Bingham flow over grooved surfaces: interFoam with classical ...
Amir Joulaei +2 more
wiley +1 more source