Journal ArticleDOI
A 3-D diagnostic model for wind field adjustment
TLDR
A new triangulation technique is proposed for a 3-D domain, considering the Cartesian coordinate system with both variable horizontal and vertical spacing possibilities in the final mesh.About:
This article is published in Journal of Wind Engineering and Industrial Aerodynamics.The article was published on 1998-04-01. It has received 47 citations till now. The article focuses on the topics: Mixed finite element method & Finite element method.read more
Citations
More filters
Journal ArticleDOI
A comparison of three approaches for simulating fine-scale surface winds in support of wildland fire management: Part I. Model formulation and comparison against measurements
TL;DR: In this article, three types of wind models have been defined for simulating surface wind flow in support of wildland fire management: (1) a uniform wind field (typically acquired from coarse-resolution (~4km) weather service forecast models); (2) a newly developed mass-conserving model and (3) a new mass and momentum conserving model.
Modeling wind in complex terrain for use in fire spread prediction
TL;DR: In this paper, the authors evaluated three methods of providing surface wind information to fire growth models: uniform wind speed and direction, a method that has traditionally used, and other two types were based on numerical models used in the pollutant dispersion and wind power generation fields.
Journal ArticleDOI
Genetic algorithms for an improved parameter estimation with local refinement of tetrahedral meshes in a wind model
TL;DR: The main goal of this work is the estimation of these parameters using genetic algorithms, such that some of the wind velocities observed at the measurement station are regenerated as accurately as possible by the model.
Book ChapterDOI
Tetrahedral Mesh Generation for Environmental Problems over Complex Terrains
TL;DR: A code for generating a tetrahedral mesh from an "optimal" node distribution in the domain based on Delaunay triangulation and a procedure to optimise the resulting mesh is developed.
Journal ArticleDOI
A finite difference model for air pollution simulation
N. Sanı́n,Gustavo Montero +1 more
TL;DR: A 3-D model for atmospheric pollutant transport is proposed considering a set of coupled convection-diffusion-reaction equations which is constructed following the technique of Lax and Wendroff and tested with a numerical experiment in La Palma Island.
References
More filters
Journal ArticleDOI
BI-CGSTAB: a fast and smoothly converging variant of BI-CG for the solution of nonsymmetric linear systems
TL;DR: Numerical experiments indicate that the new variant of Bi-CG, named Bi- CGSTAB, is often much more efficient than CG-S, so that in some cases rounding errors can even result in severe cancellation effects in the solution.
Journal ArticleDOI
Development of a second-generation mathematical model for Urban air pollution—I. Model formulation
TL;DR: In this article, a new comprehensive modeling system for urban air pollution, including three-dimensional, grid-based as well as Lagrangian trajectory, vertically integrated and single cell formulations, is described.
Journal ArticleDOI
A Simple Method for Spatial Interpolation of the Wind in Complex Terrain
TL;DR: In this paper, the topographical elevation difference is proposed as a new variable for spatial interpolation of the sparse surface wind measurements to a finer mesh in a complex terrain area, and the efficiency of the inverse absolute elevation difference and the inverse distance squared as averaging weights is checked; this is done for two meteorological synoptic weather types.
Journal ArticleDOI
Efficient refinement/derefinement algorithm of nested meshes to solve evolution problems
TL;DR: An adaptive refinement/derefinement algorithm of nested meshes is presented and its efficiency is shown through two numerical examples: a time-dependent convection-diffusion problems with dominant convection and a quasistationary problem.