Results 11 to 20 of about 83,468 (167)
Liquid dispersion in packed columns: Experiments and numerical modeling [PDF]
Chemical Engineering Science, 2013 In order to optimize the design of gas-liquid packed columns used in distillation or in absorption processes, it is of high importance to be able to predict liquid dispersion. Indeed, dispersion phenomena will impact the choice and design of liquid distributing devices and the height of the packed beds.
Fourati, Manel +2 more
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Waves’ Numerical Dispersion and Damping due to Discrete Dispersion Relation [PDF]
Volume 8A: Ocean Engineering, 2014 In linear Rankine panel method, the discrete linear dispersion relation is solved on a discrete free-surface to capture the free-surface waves generated due to wave-body interactions. Discretization introduces numerical damping and dispersion, which depend on the discretization order and the chosen methods for differentiation in time and space.
Ommani, Babak, Faltinsen, Odd Magnus
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Numerical Dispersive Schemes for the Nonlinear Schrödinger Equation [PDF]
SIAM Journal on Numerical Analysis, 2009 We consider semidiscrete approximation schemes for the linear Schrödinger equation and analyze whether the classical dispersive properties of the continuous model hold for these approximations. For the conservative finite difference semidiscretization scheme we show that, as the mesh size tends to zero, the semidiscrete approximate solutions lose the ...
Liviu I. Ignat, Enrique Zuazua
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A systematic approach to numerical dispersion in Maxwell solvers [PDF]
Computer Physics Communications, 2018 The finite-difference time-domain (FDTD) method is a well established method for solving the time evolution of Maxwell's equations. Unfortunately the scheme introduces numerical dispersion and therefore phase and group velocities which deviate from the correct values.
Alexander Blinne +5 more
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Mode dispersion and delay characteristics of optical waveguides using equivalent TL circuits [PDF]
, 2005 A new analysis leading to an exact and efficient algorithm is presented for calculating directly and without numerical differentiation the mode dispersion characteristics of cylindrical dielectric waveguides of arbitrary refractive-index profile. The new
Boucouvalas, Anthony C., Qian, Xin
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Turbulent dispersion in cloud-topped boundary layers [PDF]
, 2009 Compared to dry boundary layers, dispersion in cloud-topped boundary layers has received less attention. In this LES based numerical study we investigate the dispersion of a passive tracer in the form of Lagrangian particles for four kinds of atmospheric
Vilà-Guerau de Arellano, J. (author) +11 more
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Numerical Modeling of Dispersion in Stratified Waters
Coastal Engineering 1976, 1976 A numerical model is developed for the quantitative description of the dispersion process in a two-layer system which represents an approximation for a natural coastal water body during the summer season when a distinct thermocline usually exists. The formulation is based on the convection-diffusion equation, vertically integrated between the layer ...
George C. Christodoulou +1 more
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Tracer Dispersion in Rough Open Cracks [PDF]
, 1998 Tracer dispersion is studied in an open crack where the two rough crack faces have been translated with respect to each other. The different dispersion regimes encountered in rough-wall Hele-Shaw cell are first introduced, and the geometric dispersion ...
Plouraboué, Franck +2 more
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Numerical simulation of nonlinear dispersive quantization
Discrete and Continuous Dynamical Systems, 2014 In the present paper, the authors develop and analyze new numerical method for the integrable nonlinear Schrödinger equation and the nonlinear Korteweg-de Vries equation with step function initial data and periodic boundary conditions. The method is based on the operator splitting strategy, which also highlights the interplay between the linear and ...
Chen, Gong, Olver, Peter J.
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Numerical simulation of bubble dispersion in turbulent Taylor-Couette flow [PDF]
, 2014 We investigate bubble dispersion in turbulent Taylor-Couette flow. The aim of this study is to describe the main mechanisms yielding preferential bubble accumulation in near-wall structures of the flow.
CLIMENT, Eric +7 more
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