Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Nicolleau, F. C. G. A"'
Lattice Boltzmann Method (LBM) simulations for turbulent flows over a fractal and non-fractal obstacles are presented. The wake hydrodynamics are compared and discussed in terms of flow relaxation, Strouhal numbers and wake length for different Reyno
Externí odkaz:
http://arxiv.org/abs/1811.06867
Swirling flows in conical pipe can be found in a number of industrial processes, such as hydrocylone, separator and rotating machinery. It has been found that wall oscillations can reduce the drag in water channel and pipe flows, but there is no stud
Externí odkaz:
http://arxiv.org/abs/1803.02211
In this paper, we explore different Markovian random walk strategies on networks with transition probabilities between nodes defined in terms of functions of the Laplacian matrix. We generalize random walk strategies with local information in the Lap
Externí odkaz:
http://arxiv.org/abs/1712.04256
Publikováno v:
Flow, Turbulence and Combustion, Springer Verlag (Germany), 2013, 91 (1), pp.79 - 103
We study the statistics of the vertical motion of inertial particles in strongly stratified turbulence. We use Kinematic Simulation (KS) and Rapid Distortion Theory (RDT) to study the mean position and the root mean square (rms) of the position fluct
Externí odkaz:
http://arxiv.org/abs/1708.07699
Publikováno v:
T M Michelitsch et al 2017 J. Phys. A: Math. Theor. 50 505004
We analyze a random walk strategy on undirected regular networks involving power matrix functions of the type $L^{\frac{\alpha}{2}}$ where $L$ indicates a `simple' Laplacian matrix. We refer such walks to as `Fractional Random Walks' with admissible
Externí odkaz:
http://arxiv.org/abs/1707.05843
A new mathematical model for non-equilibrium evaporation/condensation including boiling effect is proposed. A simplified differential-algebraic system of equations is obtained. A code to solve numerically this differential-algebraic system has been d
Externí odkaz:
http://arxiv.org/abs/1707.01497
Autor:
Nicolleau, F. C. G. A.
Publikováno v:
Fluid Dyn. Res., 45: 061402 (2013)
We present experimental results obtained from pipe flows generated by fractal shaped orifices or openings. We compare different fractal orifices and their efficiencies to re-generate axi-symmetric flows and to return to the standard flow generated by
Externí odkaz:
http://arxiv.org/abs/1706.09199
Publikováno v:
Phys. Rev. E., 92(2): 023028 (2015)
The paper investigates shock-induced vortical flows within inhomogeneous media of nonuniform thermodynamic properties. Numerical simulations are performed using an Eularian type mathematical model for compressible multi-component flow problems. The m
Externí odkaz:
http://arxiv.org/abs/1706.08847
Publikováno v:
Intl J. App. Mech., 6(3):1450021, 2014
In this paper high resolution wave probe records are examined using wavelet techniques with a view to determining the sources and relative contributions of capillary wave energy along representative wind wave forms. Wavelets enable computations of co
Externí odkaz:
http://arxiv.org/abs/1706.07959
Publikováno v:
Phys. Rev. E., 91(4):043021, 2015
In this paper, we study the clustering of inertial particles using a periodic kinematic simulation. The systematic Lagrangian tracking of particles makes it possible to identify the particles' clustering patterns for different values of particle iner
Externí odkaz:
http://arxiv.org/abs/1706.08512