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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Computational fluid dynamics simulations and validation of the pressure distribution on the roof of a commercial multi-span Venlo-type glasshouse
S. Reichrath,Thomas W. Davies +1 more
TL;DR: In this paper, experimental work conducted on a 52 span Venlo-type glasshouse is used to validate the prediction of pressure distributions on the external side of the glasshouse roof made using the commercial CFD package Fluent 5.18.
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A computational and wind tunnel study of particle dry deposition in complex topography
Simon Parker,R.P Kinnersley +1 more
TL;DR: In this paper, the authors used wind tunnel and computational fluid dynamics studies of flow and particle deposition over landscape features to understand the likely pattern of dry deposition of small particles over a landscape is a key prerequisite to designing strategies for sampling ground contamination following routine or accidental releases to atmosphere.
Journal ArticleDOI
Dispersion in the Wake of a Rectangular Building: Validation of Two Reynolds-Averaged Navier–Stokes Modelling Approaches
TL;DR: In this article, two different approaches can be used to model the turbulent dispersion of a passive tracer using Reynolds-averaged Navier-Stokes (RANS) simulations, and a comparison between the two approaches and wind-tunnel data for the dispersion in the wake of a rectangular building immersed in a neutral atmospheric boundary layer (ABL) is presented.
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A comparison of ground-based LiDAR and met mast wind measurements for wind resource assessment over various terrain conditions
TL;DR: In this paper, a measurement campaign was led using ground-based LiDAR of WINDCUBE V2 and meteorological masts at three measurement sites: Sumang, Gangjeong, and Susan, on Jeju Island, Korea.
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Numerical modeling of turbulent dispersion for wind-driven rain on building facades
Aytaç Kubilay,Aytaç Kubilay,Dominique Derome,Dominique Derome,Bje Bert Blocken,Jan Carmeliet,Jan Carmeliet +6 more
TL;DR: In this paper, an implementation of turbulent dispersion into an Eulerian multiphase model for WDR assessment is proposed, which reduces the average deviation between simulations and measurements from 24 to 15%.
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.
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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.