Bayesian calibration of the constants of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si13.gif" display="inline" overflow="scroll"><mml:mi>k</mml:mi></mml:math>–<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si14.gif" display="inline" overflow="scroll"><mml:mi>ε</mml:mi></mml:math>turbulence model for a CFD model of street canyon flow

Guillas, Serge; Glover, Nina; Malki-Epshtein, Liora

doi:10.1016/j.cma.2014.06.008

Cited by 79 publications

(23 citation statements)

References 24 publications

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“…A universal set of closure coefficients is unavailable. Various studies have reported that the closure coefficient may require fine-tuning for accurate results [38,39]. In this study, the fine-tuning of closure coefficients was performed.…”

Section: Numerical Approachmentioning

confidence: 99%

“…In this study, revised closure coefficients were applied for pedestrian-level wind flow analysis. Revised closure coefficients were based on recommendations by Guillas et al [38].…”

Section: Revised Closure Coefficientsmentioning

confidence: 99%

“…Guillas et al [38] performed Bayesian calibration and recommended a set of closure coefficients for street canyon wind flow analysis ( Table 3). In this study, the set of closure coefficients that were suggested by Guillas et al [38] was tuned for the problem being analyzed. From the set recommended by Guillas et al [38], two test ranges were evaluated, as shown in Table 3.…”

Section: Revised Closure Coefficientsmentioning

confidence: 99%

“…In this study, the set of closure coefficients that were suggested by Guillas et al [38] was tuned for the problem being analyzed. From the set recommended by Guillas et al [38], two test ranges were evaluated, as shown in Table 3. Guilles et al [38] and Edeling et al [39] have indicated that the lower values of s k (0.53 and 0.462) and s ε (0.5 and 0.42) significantly improve the performance of the SKE turbulence model.…”

Section: Revised Closure Coefficientsmentioning

confidence: 99%

“…From the set recommended by Guillas et al [38], two test ranges were evaluated, as shown in Table 3. Guilles et al [38] and Edeling et al [39] have indicated that the lower values of s k (0.53 and 0.462) and s ε (0.5 and 0.42) significantly improve the performance of the SKE turbulence model. In this study, C m and C ε2 Table 2 Wind speed regions based on normalized wind speed (NWS).…”

Section: Revised Closure Coefficientsmentioning

confidence: 99%

See 4 more Smart Citations

Pedestrian level wind environment assessment around group of high-rise cross-shaped buildings: Effect of building shape, separation and orientation

Iqbal

Chan

2016

Building and Environment

111

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a b s t r a c tBlockage of air circulation caused by the mutual sheltering effect of high-rise buildings in built-up areas in dense cities causes various health-and comfort-related problems. The combined effect of neighborhood geometry (e.g., re-entrant corners, wind incident angle, passage angle, and building separation) on wind flow at the pedestrian level is an active field of research. This study investigates the influence of the wind incident angle and passage width on the wind flow characteristics at the re-entrant corners of cross-shaped high-rise buildings. This study also examines the influence of stagnant zones and wake regions on ventilation potential and wind comfort around the case study arrangements at various wind incident directions. An investigation was performed from 16 wind directions using the standard keε turbulence model with revised closure coefficients. A wind tunnel experiment was conducted to validate the results, which revealed that wind circulation at re-entrant corners was substantially affected by the building orientations and separation. The wind catchment effect within the re-entrant corners and the sheltering effect of buildings at various wind incident directions and building separations are also discussed. Unstable vortices were formed in oblique wind directions; these vortices facilitate contaminant dispersion and wind comfort at re-entrant corners and near buildings.

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Section: Numerical Approachmentioning

confidence: 99%

“…In this study, revised closure coefficients were applied for pedestrian-level wind flow analysis. Revised closure coefficients were based on recommendations by Guillas et al [38].…”

Section: Revised Closure Coefficientsmentioning

confidence: 99%