Journal ArticleDOI
Appropriate boundary conditions for computational wind engineering models using the k-ϵ turbulence model
Peter Richards,R.P. Hoxey +1 more
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In this paper, velocity and turbulence profiles associated with the k-ϵ turbulence model are proposed which produce homogeneous conditions, and the cospectrum for the Reynolds stress exhibits a characteristics frequency n o ≈ u ∗ / z which is consistent with the suggested profile equations.About:
This article is published in Journal of Wind Engineering and Industrial Aerodynamics.The article was published on 1993-08-01. It has received 1044 citations till now. The article focuses on the topics: K-omega turbulence model & K-epsilon turbulence model.read more
Citations
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Journal ArticleDOI
Numerical simulation and model prediction of complex wind-turbine wakes
Yilei Song,Linlin Tian,Ning Zhao +2 more
TL;DR: In this paper, the authors take into account the presence of wind shear effect and the vertical profiles of vertical profiles for reliable wake simulations, and provide an accurate description of incoming wind condition.
Journal ArticleDOI
Study of wind flow and pollutant dispersion by newly developed precision-improving methods
TL;DR: In this paper, a three-dimensional transient numerical model for atmospheric wind flow and industry and/or traffic pollutant dispersion over terrains having a complex topography is presented.
Dissertation
CFD-based Methodology for Wind Farm Layout Optimization
TL;DR: Antoni et al. as mentioned in this paper proposed an innovative design framework that integrates accurate wake effect predictions for the development of the next generation wind farms as part of the strategy for promoting the transition to a renewable energy generation.
Journal ArticleDOI
Wind turbine wake simulation with explicit algebraic Reynolds stress modeling
TL;DR: The explicit algebraic Reynolds stress model (EARSM) of Wallin and Johansson (2000) can alleviate some of these deficiencies while still being numerically robust and only slightly more computationally expensive than the traditional two-equation models as discussed by the authors .
Book ChapterDOI
Rooftop Siting of a Small Wind Turbine Using a Hybrid BEM-CFD Model
Francesco Balduzzi,Alessandro Bianchini,Domenico Gentiluomo,Giovanni Ferrara,Lorenzo Ferrari +4 more
TL;DR: In this article, a set of simulations using a hybrid BEM-CFD model were carried out to optimize the siting of a small HAWT in the rooftop of a suburban building.
References
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Journal ArticleDOI
The numerical computation of turbulent flows
Brian Launder,D. B. Spalding +1 more
TL;DR: In this paper, the authors present a review of the applicability and applicability of numerical predictions of turbulent flow, and advocate that computational economy, range of applicability, and physical realism are best served by turbulence models in which the magnitudes of two turbulence quantities, the turbulence kinetic energy k and its dissipation rate ϵ, are calculated from transport equations solved simultaneously with those governing the mean flow behaviour.
Characteristics of turbulence in a boundary layer with zero pressure gradient
TL;DR: In this article, the results of an experimental investigation of a turbulent boundary layer with zero pressure gradient are presented and the importance of the region near the wall and the inadequacy of the concept of local isotropy are demonstrated.
Neutrally stratified boundary-layer flow over roughness changes and topography
TL;DR: In this paper, a linear model for neutral surface-layer flow over complex terrain is presented, which makes it possible to make high-resolution computations for an arbitrary distribution of surface roughness and topography.
Journal ArticleDOI
A mixed spectral finite-difference model for neutrally stratified boundary-layer flow over roughness changes and topography
TL;DR: In this paper, a linear model for neutral surface-layer flow over complex terrain is presented, which combines the simplicity and computational efficiency of linear methods with flexibility for closure schemes of finite-difference methods.
Journal ArticleDOI
Simulation of Effect of Wind Barriers on Airflow
TL;DR: In this article, the authors developed a quantitative, theoretical simulation of airflow normal to narrow wind barriers of various porosities and, when possible, verify the results using experimental data, using finite difference methods having a combination of upwind and central difference schemes.