Results 81 to 90 of about 2,237,184 (349)

Train Slide or Slip Compensation Study Based on Multiple Sensors

机车电传动, 2018
Velocity and distance measurement system based on pulse speed sensor and accelerometer was introduced. Process of train slide or slip was analyzed, and according to the change of acceleration and velocity, the slide or slip was divided into acceleration ...
ZHANG Jiangtao, LIU Ze
doaj  

A linear hydraulic fracture with tortuosity and fluid–slip at the fluid–rock interface

Partial Differential Equations in Applied Mathematics
A hydraulic fracture with tortuosity and fluid–slip at the fluid–rock interface is replaced by a two-dimensional symmetric model fracture. The mathematical model is formulated using a modified Reynolds flow law and a linear crack law.
M.R.R. Kgatle-Maseko, T.L. Vetezo
doaj   +1 more source

Compressible material flow in cylindrical channel with variable cross section

MATEC Web of Conferences, 2017
In the mathematical model of the flow of compressible material the effect of friction and the slip velocity of the material at the side boundary surfaces are considered.
Pryanishnikova Elena, Belyaeva Nadezhda, Stolin Alexandr   +2 more
doaj   +1 more source

Time-Resolved Studies of Stick-Slip Friction in Sheared Granular Layers

, 1998
Sensitive and fast force measurements are performed on sheared granular layers undergoing stick-slip motion, along with simultaneous imaging. A full study has been done for spherical particles with a +-20% size distribution.
A. Bak, A. Demirel, A. Johansen, A. Kudrolli, B. E. Shaw, B. Miller, B. N. J. Persson, C. Daly, C. G. Sammis, C. H. Scholz, C. Marone, C.-h. Liu, D. Cule, D. G. Wang, D. M. Hanes, D. M. Tolstoi, D. R. Scott, E. Kumacheva, E. Rabinowicz, F. Heslot, F. Radjai, F.-J. Elmer, G. H. Ristow, H. Jaeger, H. M. Jaeger, J. A. C. Martins, J. M. Carlson, J. P. Gollub, J. R. Rice, K. Heki, L. M. Jones, M. G. Rozman, M. L. Gee, N. M. Beeler, O. Pouliquen, P. A. Thompson, P. A. Thompson, S. B. Savage, S. Nasuno, S. Nasuno, T. Baumberger, T. Baumberger, V. K. Horváth, Y. Zhang   +43 more
core   +2 more sources

A Liouville theorem for the planer Navier-Stokes equations with the no-slip boundary condition and its application to a geometric regularity criterion [PDF]

, 2013
We establish a Liouville type result for a backward global solution to the Navier-Stokes equations in the half plane with the no-slip boundary condition. No assumptions on spatial decay for the vorticity nor the velocity field are imposed.
Giga, Yoshikazu, Hsu, Pen-Yuan, Maekawa, Yasunori   +2 more
core   +2 more sources

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Analysis of Boundary Slip in a Flow with an Oscillating Wall

, 2012
Molecular dynamic (MD) simulation is used to study slip at the fluid-solid boundary in an unsteady flow based on the Stokes second problem. An increase in slip is observed in comparison to the steady flow for shear rates below the critical shear rate of ...
Mohseni, Kamran, Thalakkottor, Joseph John   +1 more
core   +1 more source

Simulation of copper-water nanofluid in a microchannel in slip flow regime using the lattice Boltzmann method with heat flux boundary condition [PDF]

, 2015
Laminar forced convection heat transfer of water–Cu nanofluids in a microchannel is studied using the double population Thermal Lattice Boltzmann method (TLBM). The entering flow is at a lower temperature compared to the microchannel walls.
D'Orazio, Annunziata, Karimipour, A., Nikkhah, Z.   +2 more
core   +1 more source

Bypassing slip velocity: rotational and translational velocities of autophoretic colloids in terms of surface flux [PDF]

Journal of Fluid Mechanics, 2016
A standard approach to propulsion velocities of autophoretic colloids with thin interaction layers uses a reciprocity relation applied to the slip velocity although the surface flux (chemical, electrical, thermal, etc.), which is the source of the field ...
P. Lammert, V. Crespi, Amir Nourhani
semanticscholar   +1 more source

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

Advanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter, Andreas Bezold, Johan Westraadt, Katharina Fiegl, Subham Chattoraj, Benjamin Wahlmann, Carolin Körner, Michael Mills, Mathias Göken, Steffen Neumeier   +9 more
wiley   +1 more source