Results 91 to 100 of about 3,258,906 (335)
Dynamic Stability of the 3D Axi-symmetric Navier-Stokes Equations with Swirl
, 2006 In this paper, we study the dynamic stability of the 3D axisymmetric Navier-Stokes Equations with swirl. To this purpose, we propose a new one-dimensional (1D) model which approximates the Navier-Stokes equations along the symmetry axis.
Hou, Thomas Y., Li, Congming
core +2 more sources
The effect of discontinuous injection on particle backflow in pneumatic conveying systems
The Canadian Journal of Chemical Engineering, EarlyView.Abstract Pneumatic conveying is used in many process industries to transport dry, granular, and powdered solids. The triboelectrification of particles during conveying causes particle agglomeration, spark discharges, and disruptions in particle flow, making particles move upstream against the fluid flow. The effect of frequency of particle injection on
Otome Obukohwo +3 more
wiley +1 more source
Existence and regularity of solutions to the Leray-alpha model with Navier slip boundary conditions
Electronic Journal of Differential Equations, 2016 We establish the existence and regularity of a unique weak solution to turbulent flows in a bounded domain $\Omega\subset\mathbb R^3$ governed by the Leray-$\alpha$ model with Navier slip boundary condition for the velocity. Furthermore, we show that
Hani Ali, Petr Kaplicky
doaj
Flow in a model turbine stator [PDF]
In view of the complex nature of the flowfield in the hot section of gas turbine engines, the need to predict heat transfer and flow losses, the possible appearance of separation and strong secondary flows, etc., the present effort is focusing upon a ...
Briley, W. R. +2 more
core +1 more source
Simulation of CO2–water two‐phase fluid displacement characteristics based on the phase field method
Deep Underground Science and Engineering, EarlyView.In the present study, a two‐dimensional numerical model of porous media was developed using the actual pore structure of the core sample. The phase field method was utilized to simulate the impact of the displacement velocity, the water–gas viscosity ratio, and the density ratio on the flow behavior of two‐phase fluids in porous media. Abstract The two‐
Changnü Zeng +3 more
wiley +1 more source
Journal of MathematicsIn the paper, we consider the regularity of the weak solutions for the incompressible 3D Navier–Stokes (N–S) equations. Our main result is the double-logarithmic regularity criterion of pressure for the 3D Navier–Stokes equations in the Besov space ...
Min Liu, Juan Song, Tian-Li Li
doaj +1 more source
Applications of the contravariant form of the Navier-Stokes equations [PDF]
The contravariant Navier-Stokes equations in weak conservation form are well suited to certain fluid flow analysis problems. Three dimensional contravariant momentum equations may be used to obtain Navier-Stokes equations in weak conservation form on a ...
Katsanis, T.
core +1 more source
Deep Underground Science and Engineering, EarlyView.Fluid flow through a single fracture is commonly described by the cubic law. However, deviations from this model are expected because natural fracture surfaces are rough and in contact with each other in discrete regions. In this study, the interactions between fracture closure, contact area, and hydraulic characterization of mesoscopic‐scale rough ...
Chenghao Han +5 more
wiley +1 more source
Uniform Error Estimates of the Finite Element Method for the Navier-Stokes Equations in R2 with L2 Initial Data. [PDF]
Entropy (Basel), 2023 Ren S, Wang K, Feng X.
europepmc +1 more source
ELECTROPHORESIS, EarlyView.ABSTRACT Surface‐based biosensor performance is generally limited by mass transfer, especially when detecting low‐concentrated species. To address this, dielectrophoresis (DEP) and alternating current electroosmosis (ACEO) can be combined to enhance mass transfer, increasing the target concentration near the sensor.
Pauline Zimmer +8 more
wiley +1 more source