Suscripción a Biblioteca: Guest
International Journal for Multiscale Computational Engineering

Publicado 6 números por año

ISSN Imprimir: 1543-1649

ISSN En Línea: 1940-4352

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.4 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.3 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 2.2 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00034 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.46 SJR: 0.333 SNIP: 0.606 CiteScore™:: 3.1 H-Index: 31

Indexed in

3D Finite Element Modeling of Free-Surface Flows with Efficient k − ε Turbulence Model and Nonhydrostatic Pressure

Volumen 4, Edición 3, 2006, pp. 363-375
DOI: 10.1615/IntJMultCompEng.v4.i3.60
Get accessGet access

SINOPSIS

Validation of three-dimensional (3D) finite element model for free-surface flow is conducted using a high-quality and high spatial resolution data set. The present research finds its motivation in the increasing need for efficient management of geophysical flows, such as estuaries (multiphase fluid flow) or natural rivers with the complicated channel geometry (e.g., strong channel curvature). A numerical solution is based on the unsteady Reynolds-averaged Navier-Stokes equations without conventional assumption of hydrostatic pressure. The eddy viscosity is calculated from the efficient k − ε turbulence model. The model uses implicit fractional step time stepping, and the characteristics method is used to compute the convection terms in the multilayer system (suitable for the vertical stratified fluid flow), in which the vertical grid is located at predefined heights and the number of elements in the water column depends on water depth. The lowermost and uppermost elements of variable height allow a faithful representation of the channel bed and the time-varying free surface, respectively. The model is applied to the 3D curved open channels flows for which experimental data are available for comparison. Computations with and without non-hydrostatic are compared for the same trench to test the validity of the conventional hydrostatic pressure assumption. Good agreement is found between numerical computations and experiments.

Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones Precios y Políticas de Suscripcione Begell House Contáctenos Language English 中文 Русский Português German French Spain