Computational evaluation of pedestrian wind comfort and wind safety around a high-rise building in an urban area

Pedestrian wind comfort is analyzed for a new shopping street area in Eindhoven city center. Wind nuisance is especially perceived around a tower of 105 m high, at an intersection of two streets. The Dutch wind nuisance standard NEN 8100 combined with CFD (Computational Fluid Dynamics) simulations is used to assess the pedestrian wind comfort. Special care is given to the grid generation and comparison of the CFD simulations with on-site wind speed measurements. The effectiveness of a series of incremental remedial measures is analyzed. A large canopy is shown to be successful in bringing the wind comfort to an acceptable level.

[1]  T. Stathopoulos,et al.  CFD simulation of the atmospheric boundary layer: wall function problems , 2007 .

[2]  T. Shih,et al.  A new k-ϵ eddy viscosity model for high reynolds number turbulent flows , 1995 .

[3]  Bje Bert Blocken,et al.  Pedestrian wind comfort around buildings : comparison of wind comfort criteria based on whole-flow field data for a complex case study , 2013 .

[4]  Jan Carmeliet,et al.  Pedestrian wind conditions at outdoor platforms in a high-rise apartment building: generic sub-configuration validation, wind comfort assessment and uncertainty issues , 2008 .

[5]  Yoshihide Tominaga,et al.  AIJ guidelines for practical applications of CFD to pedestrian wind environment around buildings , 2008 .

[6]  Theodore Stathopoulos,et al.  Pedestrian Level Winds and Outdoor Human Comfort , 2006 .

[7]  Eddy Willemsen,et al.  Design for wind comfort in The Netherlands: Procedures, criteria and open research issues , 2007 .

[8]  Bert Blocken,et al.  Coupled urban wind flow and indoor natural ventilation modelling on a high-resolution grid: A case study for the Amsterdam ArenA stadium , 2010, Environ. Model. Softw..

[9]  Bert Blocken,et al.  CFD simulation for pedestrian wind comfort and wind safety in urban areas: General decision framework and case study for the Eindhoven University campus , 2012, Environ. Model. Softw..

[10]  Nicole Metje,et al.  Pedestrian comfort using clothing values and body temperatures , 2008 .

[11]  Jon Wieringa,et al.  Updating the Davenport roughness classification , 1992 .

[12]  P. Bradshaw,et al.  Momentum transfer in boundary layers , 1977 .

[13]  B. Launder,et al.  The numerical computation of turbulent flows , 1990 .

[14]  Peter Richards,et al.  Pedestrian level wind speeds in downtown Auckland , 2002 .