Results 21 to 30 of about 90,194 (288)

Surface roughness influence on the quality factor of high frequency nanoresonators [PDF]

, 2008
Surface roughness influences significantly the quality factor of high frequency nanoresonators for large frequency - relaxation times within the non-Newtonian regime, where a purely elastic dynamics develops.
G. Palasantzas, Roukes M. L., Wong A.-C.
core   +5 more sources

Non‐Newtonian stokes flow with frictional boundary conditions

Mathematical Modelling and Analysis, 2007
In this work we deal with the boundary value problem for the non‐Newtonian fluid flow with boundary conditions of friction type, mostly by means of variational inequalities.
Fouad Saidi
doaj   +1 more source

Quintessence, scalar-tensor theories and non-Newtonian gravity [PDF]

, 1999
We discuss some of the issues which we encounter when we try to invoke the scalar-tensor theories of gravitation as a theoretical basis of quintessence. One of the advantages of appealing to these theories is that they allow us to implement the scenario ...
A. D. Dolgov, A. G. Riess, C. Brans, E. Fishbach, F. Perrotta, G. Huey, J. Frieman, J. P. Uzan, L. Amendola, M. C. Bento, M. S. Chanowitz, N. Bartolo, O. Bertolami, O. Bertolami, P. G. Ferreira, P. G. Ferreira, P. J. Steinhardt, R. D. Peccei, R. R. Caldwell, R. W. Hellings, S. Carroll, S. Perlmutter, S. V. Ketov, T. Chiba, T. Chiba, W. Hu, Y. Fujii, Y. Fujii, Y. Fujii, Y. Fujii, Y. Fujii, Y. Fujii, Yasunori Fujii   +32 more
core   +3 more sources

Melting of non-Newtonian phase change material in a finned triple-tube: Efficacy of non-uniform magnetic field

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, Amir Davoodabadi Farahani, Fatemeh Tayebzadeh, Amir H. Mosavi   +3 more
doaj   +1 more source

Non-Newtonian Rheology in Blood Circulation

, 2014
Blood is a complex suspension that demonstrates several non-Newtonian rheological characteristics such as deformation-rate dependency, viscoelasticity and yield stress.
Sochi, Taha
core   +2 more sources

Dynamics of a non-autonomous incompressible non-Newtonian fluid with delay [PDF]

, 2017
We first study the well-posedness of a non-autonomous incompressible non-Newtonian fluid with delay. The existence of global solution is obtained by classical Galerkin approximation and the energy method.
Caraballo Garrido, Tomás, Fu, Xianlong, Liu, Linfang   +2 more
core   +1 more source

Stress Overshoot Analysis in Flow Start-Up Tests: Aging Time Fitting of the Different Gel-Based Drilling Fluids

Gels
Drilling 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, Raquel S. Schimicoscki, Yamid J. Garcia-Blanco, Eduardo M. Germer, Vladimir Ballesteros-Ballesteros, Oriana Palma Calabokis, Admilson T. Franco   +6 more
doaj   +1 more source

The non-Newtonian rheology of dilute colloidal suspensions [PDF]

, 2002
The non-Newtonian rheology is calculated numerically to second order in the volume fraction in steady simple shear flows for Brownian hard spheres in the presence of hydrodynamic and excluded volume interactions. Previous analytical and numerical results
Bergenholtz, J., Brady, J. F., Vicic, M.
core   +1 more source

Natural convection of viscoplastic fluids in side-heated open cavities

Case Studies in Thermal Engineering
This 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, Admilson T. Franco, Silvio L.M. Junqueira, Muhammad Nadeem   +3 more
doaj   +1 more source

Numerical investigation of viscoplastic fluids on natural convection in open cavities with solid obstacles

Heliyon
This 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, Admilson T. Franco, Silvio L.M. Junqueira   +2 more
doaj   +1 more source