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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CFD analysis of convective heat transfer coefficients on the exterior surfaces of a cubic building
TL;DR: In this article, the forced convective heat transfer at the surfaces of a cubic building in an atmospheric boundary layer is investigated with CFD, and a good agreement with LRNM is found for the CHTC, with relatively coarse grids in the near-wall region, compared to LRNM.
Book ChapterDOI
Comparative Analysis of Inlet Boundary Conditions for Atmospheric Boundary Layer Simulation Using OpenFOAM
TL;DR: In this article, a comparative analysis has been conducted using OpenFoam for different inlet boundary conditions for the atmospheric boundary layer, taking the inlet and outlet profiles of velocity, turbulent dissipation rate, and turbulent kinetic energy.
Proceedings ArticleDOI
Influence of ground air mass motion on operation of air-cooled oil coolers of gas-turbine units
TL;DR: In this article, the effects of the ground air mass motion influence on the operation of air-cooled oil coolers of gas-turbine units are investigated. And the authors point out the necessity of the wind rose consideration for a station layout design and suggest a variant of the oil cooler modernization.
Journal ArticleDOI
Thermal performance and structural behaviour of steel hyperbolic cooling tower with holes
TL;DR: In this paper , a design concept for setting holes in a cooling tower was proposed to reduce the wind load, which is beneficial for reducing the construction cost of a steel cooling tower.
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.