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On the effective density for compressible flow in porous media

Valdes-Parada, F.J.; Soria, A.; Ochoa-Tapia, J.A.; … - In: Physica A: Statistical Mechanics and its Applications 388 (2009) 17, pp. 3288-3296

This paper addresses the following question: Is there any kind of effective density for the description of momentum transport of a compressible fluid in porous media? Pioneering 1956 Biot’s results and subsequent experimental and theoretical work suggest the convenience of introducing an...

Persistent link: https://www.econbiz.de/10010873743

A higher-order macroscopic model for bi-direction pedestrian flow

Jiang, Yan-Qun; Zhou, Shu-Guang; Tian, Fang-Bao - In: Physica A: Statistical Mechanics and its Applications 425 (2015) C, pp. 69-78

In this paper, a higher-order macroscopic model for bi-direction pedestrian flow is presented to investigate macroscopic crowd patterns of bi-direction pedestrian movement. For each group, the macroscopic model consists of two-dimensional Euler equations with relaxation and an Eikonal-type...

Persistent link: https://www.econbiz.de/10011209709

Critical multifractality near monofractal states

Bershadskii, A. - In: Physica A: Statistical Mechanics and its Applications 238 (1997) 1, pp. 1-8

It is shown, by comparison with laboratory and computer simulation data obtained on turbulent, percolation and growth processes, that global (i.e. for wide-range of the variable q) behavior of generalized dimension, Dq, of the random systems near monofractal (homogeneous) states is similar to a...

Persistent link: https://www.econbiz.de/10010873008

Hydrodynamic screening and axisymmetric turbulence in the transient sedimentation of a dilute suspension at small Reynolds number

Felderhof, B.U. - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 24, pp. 5999-6012

correlation function and the velocity correlation functions describing axisymmetric turbulence on the length scale of the mean …

Persistent link: https://www.econbiz.de/10010873112

Turbulent self-organized criticality

De Menech, Mario; Stella, Attilio L - In: Physica A: Statistical Mechanics and its Applications 309 (2002) 3, pp. 289-296

structure functions in fluid turbulence. The correspondence involves identity of a basic scaling relation and of the form of …

Persistent link: https://www.econbiz.de/10010873351

From Brownian motion to operational risk: Statistical physics and financial markets

Voit, Johannes - In: Physica A: Statistical Mechanics and its Applications 321 (2003) 1, pp. 286-299

exponents continuously increase with time scales. It is suggested that hydrodynamic turbulence may provide a phenomenological …

Persistent link: https://www.econbiz.de/10010873639

Statistical properties of turbidity, oxygen and pH fluctuations in the Seine river estuary (France)

Schmitt, François G.; Dur, Gael; Souissi, Sami; … - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 26, pp. 6613-6623

reveal the possible influence of environmental factors such as tides and turbulence. Turbidity variability is highly complex … and does not appear to be directly coupled to turbulence, since no clear range is visible. On the other hand, oxygen … percentage of saturation and pH data show remarkably nice scaling ranges, indicating an important coupling with turbulence, but …

Persistent link: https://www.econbiz.de/10010873901

Equilibrium states of a new kinetic equation

Muriel, A. - In: Physica A: Statistical Mechanics and its Applications 322 (2003) C, pp. 139-142

Maxwellian, yielding thermodynamic properties which may be of some applicability to the phenomenon of turbulence. …

Persistent link: https://www.econbiz.de/10010873987

From turbulence to financial time series

Holdom, B - In: Physica A: Statistical Mechanics and its Applications 254 (1998) 3, pp. 569-576

borrowing from the physical picture of turbulence. The success of our approach as applied to high frequency foreign exchange …

Persistent link: https://www.econbiz.de/10010873999

Resummation techniques in the kinetic-theoretical approach to subgrid turbulence modeling

Succi, Sauro; Karlin, Iliya V; Chen, Hudong; Orszag, Steven - In: Physica A: Statistical Mechanics and its Applications 280 (2000) 1, pp. 92-98

The potential role of resummation techniques in the kinetic-theory approach to subgrid turbulence modeling is discussed. …

Persistent link: https://www.econbiz.de/10010874001