Results 21 to 30 of about 369,920 (316)

Velocity Distributions in Dissipative Granular Gases [PDF]

open access: yesPhysical Review Letters, 2004
Motivated by recent experiments reporting non-Gaussian velocity distributions in driven dilute granular materials, we study by numerical simulation the properties of 2D inelastic gases. We find theoretically that the form of the observed velocity distribution is governed primarily by the coefficient of restitution $η$ and $q=N_H/N_C$, the ratio between
van Zon, J.S., Mac Kintosh, F.C.
openaire   +4 more sources

Nontrivial velocity distributions in inelastic gases [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2002
4 pages, 1 ...
Krapivsky, P. L., Ben-Naim, E.
openaire   +2 more sources

Velocity distribution in a viscous granular gas [PDF]

open access: yesPhysical Review E, 2005
We investigate the velocity relaxation of a viscous one-dimensional granular gas, that is, one in which neither energy nor momentum is conserved in a collision. Of interest is the distribution of velocities in the gas as it cools, and the time dependence of the relaxation behavior.
Rosas, Alexandre   +2 more
openaire   +3 more sources

A Monte-Carlo error analysis for basal sliding velocity calculations [PDF]

open access: yes, 2006
Since glacier beds are mostly inaccessible, numerical inversion of the surface velocity field provides a valuable method for calculating the basal shear stress and sliding velocity. However, previous theoretical studies (limited either to planar slabs or
Nienow, Peter   +2 more
core   +1 more source

Numerical Investigation of Powered Jet Effects by RANS/LES Hybrid Methods

open access: yesXibei Gongye Daxue Xuebao, 2019
For the high-precision simulation of engine jet effects, an improved delayed detached eddy simulation (IDDES) method based on the two-equation shear stress transport (SST) model is developed, and the fifth-order finite-volume weighted essentially non ...

doaj   +1 more source

Investigation of Rotor Tip Vortex in Hover Based on IDDES Methods

open access: yesXibei Gongye Daxue Xuebao, 2019
A calculation and analysis program of high-precision numerical simulation for rotor blade tip vortex in hovering state was developed. The fifth order Roe-WENO scheme was carried out in order to reduce the numerical dissipation of the rotor wake region ...

doaj   +1 more source

Ray Trace Tomographic Velocity Analysis of Surface Seismic Reflection Data [PDF]

open access: yes, 1988
Recent development of two technologies allows application of a generalized formulation of travel time inversion to very large data sets, such as the surface reflection surveys collected for oil exploration.
Stork, Christof
core   +1 more source

Analytical solution of velocity distribution for flow through submerged large deflection flexible vegetation [PDF]

open access: yes, 2015
An analytical solution for predicting the vertical distribution of streamwise mean velocity in an open channel flow with submerged flexible vegetation is proposed when large bending occurs.
Huai, WX (reprint author), Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430072, Peoples R China.   +4 more
core   +3 more sources

On the CME velocity distribution [PDF]

open access: yesAstronomy & Astrophysics, 2006
Context. Coronal mass ejections (CMEs) are often categorized into flare-associated and filament-associated types, which logically is incomplete since there are many CMEs of the intermediate type. Aims. With this new classification, this paper aims to reexamine whether flare-associated CMEs and filament eruption-associated CMEs have distinct velocity ...
A. Q. Chen, P. F. Chen, C. Fang
openaire   +1 more source

Velocimetry of red blood cells in microvessels by the dual-slit method: Effect of velocity gradients [PDF]

open access: yes, 2012
The dual-slit is a photometric technique used for the measurement of red blood cell (RBC) velocity in microvessels. Two photometric windows (slits) are positioned along the vessel.
Duru, Paul   +3 more
core   +1 more source

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