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
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Proceedings ArticleDOI
Computational fluid dynamics (cfd) modelling over multiple dune lengths at maspalomas, gran canaria
Journal ArticleDOI
Automatic selection of release plane for Lagrangian-based wind-driven rain studies
TL;DR: In this paper , the analytical solution for raindrop trajectories in an unobstructed domain is derived and presented, and the location and sizes of the release plane can be easily determined a priori.
Journal ArticleDOI
Influence of terrain and atmospheric boundary layer on the ventilation and thermal comfort performance of windcatchers
Payam Nejat,John Kaiser Calautit,Yashar Fekri,Mohammadamin Sheikhshahrokhdehkordi,Hayder Alsaad,Conrad Voelker +5 more
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CFD Modeling of Legionella's Atmospheric Dispersion in the Explosive Outbreak in Murcia, Spain
Antonio J. Consuegro,Antonio Sánchez Kaiser,Blas Zamora,Antonio Viedma,Francisco José Hurtado Sánchez,Mónica Hernández,M. Lucas,J. Ruiz +7 more
TL;DR: In this article, a validated numerical model using the computational fluid dynamics code ANSYS Fluent is employed to simulate the dispersion of the drift from the cooling tower causative of the Legionella outbreak in the urban environment of Murcia in the days of highest emissions.
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.