Results 31 to 40 of about 10,032,749 (281)
GelsDrilling fluids are essential for maintaining cutting suspension during drilling, exhibiting gel-like behavior at rest and liquid-like behavior under shearing. These fluids display shear-thinning behavior, yield stress, and thixotropy.
Luis H. Quitian-Ardila +6 more
doaj +1 more source
Case Studies in Thermal Engineering, 2021 In this paper, a numerical study is presented on the melting process and heat transfer enhancement of a non-Newtonian phase change material (NPCM) in a double tube and a finned triple tube.
Somayeh Davoodabadi Farahani +3 more
doaj +1 more source
Nihon Reoroji Gakkaishi(Journal of the Society of Rheology, Japan), 1982 The present paper summarizes various problems on non-Newtonian fluid mechanics. Due to complex rheological behaviors of non-Newtonian fluids, constitutive equations have highly nonlinear character. As two approaches to obtain constitutive equations, continuum mechanics and molecular theory are described, and then a number of models are presented ...
openaire +4 more sources
Natural convection of viscoplastic fluids in side-heated open cavities
Case Studies in Thermal EngineeringThis study considers the natural convection process of viscoplastic fluid in a side-open cavity filled with conductive solid blocks, which are uniformly distributed and form a square lattice.
Paulo R.M. Santos +3 more
doaj +1 more source
HeliyonThis study investigates the natural convection process within open cavities filled with viscoplastic fluid following the Bingham model with solid square conductive blocks uniformly distributed throughout the cavity.
Paulo R.M. Santos +2 more
doaj +1 more source
Lattice Boltzmann simulations of unsteady Bingham fluid flows
Applications in Engineering ScienceTransient flows of viscoplastic fluids have very peculiar characteristics. The startup and cessation flows of viscoplastic materials have been subject to many theoretical and numerical investigations. The most challenging aspect of numerical solutions of
Alan Lugarini +2 more
doaj +1 more source
An experimental investigation of rheological characteristics of non- Newtonian nanofluids [PDF]
Journal of Heat and Mass Transfer Research, 2014 Rheological characteristics of Al2O3, CuO and TiO2 nano particles were investigated in oil asthe base fluid at 1 and 2 wt.%. Constitutive relations for non-Newtonian fluid were discussedbased on the power-law model. Measured viscosities of each nanofluid
Milad Tajik Jamal-Abad +4 more
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
Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials
Advanced Engineering Materials, EarlyView.Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley +1 more source
Fluids, 2023 Blood is a shear-thinning non-Newtonian fluid in which the viscosity reduces with the shear rate. When simulating arterial flow, it is well established that the non-Newtonian nature is important in the smallest vessels; however, there is no consistent ...
Aikaterini C. Stamou +2 more
doaj +1 more source